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Do winter tyres exist? Any technivs to regain control?

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tara1234
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PostPosted: 20:23 - 01 Nov 2018    Post subject: Do winter tyres exist? Any technivs to regain control? Reply with quote

Hey so I came off twice earlier today both times less than 5 mph on the same road in heavy traffic. I felt the bike going and put my footbdown but still dropped the bike. Is there any technics that I can do to regain control or should I just drop the bike and hope for minimal damage?

Also as I dropped the bike duo to wet conditions are there wet weather tyres I can put on it to make maintaining controleasier.

Lastly will doing DAS actually stop me coming off or am I coming off because I lack experience?
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Howling Terror
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PostPosted: 20:46 - 01 Nov 2018    Post subject: Reply with quote

Your tyres will not be the cause of you falling off whilst doing less than 5 mph.
I say this as someone who has rode a bike with a flat front tyre...
hey I was in my 40s and immature.

Secondly, excellent work on surviving/crashing well.

Third is one word. Smooth...esp in wet weather. The best tyres will not stop a slip if you're hamfisted. To help in smoothness you'll be scanning ahead more than currently...to scan effectively go slower (well if you actully manage to break the 5mph barrier that is Razz ). Peripheral spider senses... switch to ON.

Grab some extra tuition whilst you can still afford it...y'know the price of levers ain't dropping. Wink
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stinkwheel
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PostPosted: 20:53 - 01 Nov 2018    Post subject: Reply with quote

There's something wrong with you, your bike or the tyres if you are coming off at low speeds on wet roads.

Let's start with what bike you have, what tyres are fitted, what pressure you have them at, when you last checked this and how old those tyres are.

Then a bit more about what you were doing when this happened. Were you braking or moving off? Which wheel started to slide? What sort of road surface, you say traffic so I'm guessing urban, 30mph, daytime and no chance of it being black ice. Were both falls in the same place?

General advice for technique is keep balanced and upright on the bike, look where you want to go, do not grip the handlebars other than to turn them and avoid sudden/jerky changes in speed, keep it smooth.

You should be able to ride a motorcycle through a series of turns and manouvers at walking pace on a wet road without any problems.

Taking things to an extreme. This guy is on slicks.
https://youtu.be/0V9GVXydp3c
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stinkwheel
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PostPosted: 20:58 - 01 Nov 2018    Post subject: Reply with quote

Howling Terror wrote:
Your tyres will not be the cause of you falling off whilst doing less than 5 mph.


Oh, I dunno. You have clearly never ridden on Barum tyres. My first jawa came with them on, I would fall off it a couple of times a week just bimbling round corners. Especially in the wet.

I could see some budget bikes being fitted with horrific plastic tyres.

I forgot to mention to the OP that there is a date code on the sidewall of most tyres in a little oval cartouche. Usually a 4-figure number, the first two are the week fo the year(so 00-52) the second two are the year. So 0616 would be made in the sixth week of 2016.
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Howling Terror
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PostPosted: 20:59 - 01 Nov 2018    Post subject: Reply with quote

Barum? No. It was a BT45..I was immature but not a fool.
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tara1234
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PostPosted: 21:10 - 01 Nov 2018    Post subject: Reply with quote

my bike is a yamaha sr 125 2001 tyres seam thin compared to my friends keeway superlight 125.
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stinkwheel
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PostPosted: 21:29 - 01 Nov 2018    Post subject: Reply with quote

tara1234 wrote:
my bike is a yamaha sr 125 2001 tyres seam thin compared to my friends keeway superlight 125.


The width of them is pretty irrelevant in this case. In fact, narrower tyres are less likely to suffer problems in the wet.

So what sort are they, how old are they, what pressure do you pump them up to, when did you last check this?
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Johanna
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PostPosted: 09:08 - 02 Nov 2018    Post subject: Reply with quote

I almost came off at slow speed once, but I was pulling away from a junction and went over oil. The bike went squirrely on me but I managed to ride out of it. The reason it was so bad was because I was accelerating to pull away quickly.

Tara, did you possibly ride over something like oil, slippery drain cover or similar? As others have asked, what were you doing at the time? If you were accelerating or braking, cornering and hit something unusually slippery (possibly invisible on the wet road) then the best tyres in the world would still have dropped you.

I thought the question was going to be about cold weather tyres. I know there are specific rain tyres which displace water (and that's what we need in the UK winter) but I've been wondering, for theoretical purposes only, what tyres would be best if riding on hardpacked snow/ice, as they have on the plowed roads in Scandinavia, Canada and so on. Would rain tyres still be best?
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davebike
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PostPosted: 09:11 - 02 Nov 2018    Post subject: Reply with quote

Check you tyres !
Check pressure
Check tread 2mm all the way across all the way around !
Yes 1mm is legal but useless in cold and wet !

Do not use the front brake at low speed (sub 15/20)
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BTTD
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PostPosted: 09:32 - 02 Nov 2018    Post subject: Reply with quote

I'll second everyone's query on the tyre and it's age. I've ridden two bikes with 15 year old tyres. One was okay, the other was an arse puckering experience of front tyre slides on a 10 mph super tight country lane corner even though it felt manageable at speed. I can't remember what make that tyre was but it had gone super hard and almost like a hard plastic surface.

Alternatively you may be instinctively grabbing front brake and being ham-fisted, but that should be pretty obvious to you.
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Teflon-Mike
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PostPosted: 10:29 - 02 Nov 2018    Post subject: Reply with quote

Oh-Kay.... "Winter Tyres'...... well, that's a car 'thing' and peculiarly an American 'thing'.

"No" is the simple answer; and in cars and in the US it's something of a perversity, born of legislation in some states that have laws demand cars be fitted with "Winter Tyres' in winter months.

Away from that legislation, what the americans oft refer to as a 'Winter-Tyre' is more properly called a 'Mud & Snow' tread pattern. On an off-roader like a Landie, that would probably be something a tad more rugged than an 'All-Terrrain' tyre, but needn't be as rugged as a full mud tyre, or a 'paddle-track' or 'bar-tread' tractor or dumper-truck tyre... and they tend to only work 'better' in certain circumstances, in the case of a Mud & Snow tyre, in mud or snow! On tarmac or hard rock or gravel they can be abismal and worse than a more conservative street or even milk-float remould (see later anecdote)!!

On Bikes.... the generic off-road tyre is the knoblie..... in trials, like wot I have been perfecting falling off for four decades..... the 'regulations' stipulate a 'control tyre' with a maximum block heght and spacing, which isn't actually all that 'rugged'. In motorcross and enduro, they are allowed to run 'full-knoblies' which might have six-inch rubber stilleto's for tread, designed to dig in to the surface, where the trials knoblie is an all round tyre designed to grip the surface not quarry it....

Historically these were fitted to road-based 'Trials-Bikes', and they are NOT particularly brilliant on tar-mac, and in recent years the vogue of the 'adventure sport' has lead to tyre makers making much more road-biased 'of-road' tyres, like a sports-bike slick with bigger relief groves..... personally, I consider these like the bikes, a dirt-style tyre rather than one designed for off-road, but it's all in the aspirations and applications, I suppose!

Heading towards an answer, when you get into it, these tend to be described or rated by thier 'off-road' bias as say a 70/30 or 60/40, off-road to road tyre, note more road biased, than a trials tyre that would probably be rated at around 50/50 or the other way 40/60.

A-N-D pertinant to you.. we live in the UK.... weather tends to be pretty crud all year round, and the roads not much better! If you are riding on the roads, then the 'best' tyre is a conventional 'road' tyre.

Off-Road anecdote on topic of milk-float remoulds.... trend in off-roading, taking a Land-Rover down a muddly track, people are convinced that they HAVE to have the mega-rugged Pampa 'mud' tyres that they see the challenge trucks in the mags shod with....

Some years ago, I was leading a School teacher who had renovated an old Series III shorty in the summer holidays, shod with milk-float remolds 'cos tyres for a land-rover is expensive.... I was in Range-Rover on 'street' all-terrians, and had a chap in a challenge wannabee 90, on Pampas, come over, shake his head when I insisted we'd get through a mud-hole, and say, "Yeah, Oh-Kay, well, I'll go attach the strops to pull you both out".. An I am not too sure who was more amazed when the little SIII chugged gently out the other side... its owner, having followed advice to keep off the throttle and hands off the steering wheel and just let the truck chug through finding its own way.... or the chap playing with his HD recovery gear.....

It's a very modern trend to try 'Buy' your way through problems, rather than learn the 'skill' to contend with them....

Tyres is case in point..... good tyres are good, but they are only half the solution, other half is skill, and its the more important half.... as with the Landies, without the skill, the more capable tyres will just let a numpty get further into trouble before they realise they are in trouble.....

Back to original question...

First off the thin tyres are actually an advantage... if you want technical, the amount of grip, or force the tyre can transmit in pure friction, is a pure % of the weight force clamping the tyre to the road... 'theoretically' the area of tyre in contact with the road doesn't come in to the equation... it does, later when it starts getting more complicated... but perversely... at the base level grip is the weight times the co-efficient of friction... and that's pretty much it... you want more grip? Get heavy or fit a stickier tyre....

A-N-D tyres get pumped up to a certain pressure.. on both mine its about 30psi... that's thirty pounds-per-square-inch... my 125 weighs about 280lb.. strick me on it too, I weigh about 200lb... that's around 500lb... at 30psi, that will squash the tyres until there's about 15 square inches of rubber, between the two tyres, pressed against the tarmac....

I can fit tyres as fat as I like or as skinny as I want.... it wont make one iota of difference to how much area of rubber is squashed against the road.... Bike still weighs 280lb, I still weigh 200lb, and the pressure would still be around 30psi.....

The Reasons bigger, heavier bikes have an advantage or three.

First, they tend to be heavier; my Seven-Fifty is almost twice the wight of my 125, so it has almost twice the force clamping tyre to tarmac before you start... yes it has fatter tyres.... THIS does not give it more grip... it gives it more tyre... which when you have a big heavy bike on top, means that it can spread the load a bit through the extra rubber, which means that the tyre 'should' be more stable and longer lasting.... yes, the extra weight at the same pressure will squash more rubber into contact with the tarmac, BUT that extra area isn't the main reason for any more grip, which it may or may not have, it's entirely down to that extra weight squashing more tyre, and the extra weight providing extra clamping force.

Next up... that extra weight... well Force = Mass x Acceleration... or back-to front, acceleration is force divided by mass... less mass you have the less acceleration you get for any applied force... so, a bump in the road makes the bike 'jolt'.. that bump causes a deflecting force trying to shove the bike in a direction it wasn't going... heavier the bike, the less 'effect' that bump will have, as the force has to move more mass.... this 'can' make a heavier bike that much more 'planted' and stable on the road, less wont to react so much or so fast to any deflecting forces, like bumps, or road irregularities or clumsy newby control inputs....

Here-in lies the most likely culprit.... clumsy newby control inputs... aided and abbeted by cheap economy and likely rather old and hard tyres, but still.....

The Learner-Lurch.. I will describe in the 'launch' maneuver pulling away from a start, and its where the mantra "Neat Feet" comes from... but it applies throughout....

Learner... lets out the clutch and gingers on the throttle; as bike starts to move they leave their feet behind, because they forgot the No1 lesson of CBT, the 'safety position'; left foot down, right on the peg covering or applying back brake... but they have forgot that, and feel more comfy with two feet hovering over the floor...... so as bike starts to move, these feet are left behind and they think maybe to lift them up..... BUT.... oooh... bit hesitant, we aren't going very quick, bike might fall over.... need foot on the floor to stop it toppling..... A-N-D so the errors start to compound....

I am about 90Kg depending which way the winds blowing, that's roughly 75% the weight of the bike.... and over 1/3 of my weight is beneath my wast, in my legs.... so, IF my legs flap around on launch, on the 125, that is around 20% of the all-up weight of me and the vehicle RANDOMLY flapping around, that mass subject to the acceleration due to gravity causing a force, making the whole bike try and wag! Same lummox on top of the Seven-Fifty.... same deal, but now the bikes twice as heavy and the amount of mass flapping around in my legs is a much smaller proportion of the all up, and so has a much smaller effect.... add the fact that the bigger bike is also longer, and less agile, and it all adds up, to make it so much more smooth, the weight of the bike damping so much numptiness....

BUT... learn to launch a lightweight... means getting them feet up, on the pegs ASAP, NO FLAPPING. Now feet planted on the pegs, there's not so much weight randomly wobbling around, trying to make the bike chance direction.... more... because the bike is more stable and not wobbling so much, the rider doesn't seem to need to react to that wobble and correct anything... steering leaning backing off the throttle, ALL adding to the competing chaos of forces trying to make you crash.....

Small aside; riding a bike, is an allegory for life; We sit in the middle of a whole host of competing forces, ALL seemingly malevolent trying to make us crash, and we KID ourselves that we are 'in-control' as long as we don't.... the reality is that there are so many forces, so many imponderables, like SMIDSY man, or road-slime, and so little we actually have any real effect over, in throttle, brakes and steering, we are little more than a passenger with influence... and not a lot of influence at that.... but still.... the trick is to make the absolute MOST of the tiny control we have, and NOT think we are 'in control'... we aint! So dont get cocky!

Another Mantra; Crashing happens when confidence and confidence are widely in variance; either revin-kevin, all cahoots they have sussed this riding malarkey, giving it the berrys, OR nervouse-nancy.. teriffied of everything, convinced they are gonna muff it up... in either case, that mis-conception is what will likely cause the trouble, and Revin-Kevin will go great guns and dump it in a hedge on a bend they didn't slow down enough for.... and probably live to tell hero-tale about it, whilst ironically, Nervouse Nancy will most likely do something like slow down too much, too early, terrified of spotting a car nose in a T-Junction, convinced it will SMIDSY them, BUT, giving the car the 'false' signal that they are slowing to let them out, A-N-D misreading that signal WILL pull out and SMIDSY them! Which hurts... means paperwork, and TENDS to be a lot more serious than Revin-Kevin limping home pushing bike with buckled wheel covered in mud.... but still....

So... sat in the middle of a net of competing forces, kidding yourself you are in control, when you are actually no more than a passenger with influence......

YES, its easier on a bigger, heavier bike... usually... that extra weight damps wobbles, and flatters numpty riding.... BUT learn to do it on a light-weight, where its down to YOU and you alone to be smooth, be confident and NOT create the wobbles a bigger heavier bike might damp for you.... get on a bigger heavier bike, them wobbles aint there to need be damped! Bike no need to flatter numpty riding, 'cos you aint numpty riding! SO, that mass, that stability, means you have that much 'more' help to dodge SMIDSY and ride without so much worry on the road.

You have a 125, this is what they are best at, teaching you to do it for yourself and not expect the bike to do it for you or flatter your riding, and build REAL confidence... so stick with it... time on a tiddler is rarely wasted... and you got one, its insurance will likely be a PITA to transfer to a bigger bike in under a year anyway, so you may as well milk the thing for what its worth....

BACK TO TYRES!

SR is going to be pretty old by now, they haven't made any for best part of two-decades, what tyres are on it is unknown, but as low-cost commuter odds is they aint the best, they aint the stickiest and they are likely 'old' and hard.....

Good 'New' tyres, and by that I dont mean something off-e-bay but a known brand, like Dunlop or Mitchelin... I dont think they do them any-more, but I can thoroughly recommend Michelin M45's on a lightweight, they are about £90 a pair, double or treble the price of ecconomy brands, but OH so worth it, and a pittance in the all-up costs, for how long they last... especially considering how soft and sticky they are.. I think they have been superseded by a Pilot, which has less 'tread' and looks more like a slick sports tyre, but has the same soft rubber compound.... and I haven't tried so cant vouch for them, but they don't look so bad a bet.

And that premium on the price? Think of the cost in comparison to handlebars you dont bend, brake levers you dont break, and road-rash you DONT have to rub salve into.... it IS good value. Its a falce ecconomy to try stint on tyres on any bike, but a lightweight that doesn't have the weight to make grip or damp numptyness, its is oh-so much MORE beneficial..... especially when you are a learner trying to figure it all out and dont need any more variables or uncertainties than you got!

BUT, back to the neat-feet, good tyres are worth thier weight, BUT you still have to do your bit, tyres wont do it for you..... and accidents happen when confidence is out of kilter to competance....

When you came off...... it is odds on that regardless of how wonderful or not the tyres might have been... bottom line is that yo muffed up, if only failing to make allowance for less than brilliant tyres.... but, very good odds that you over reacted some-where and caused unnecessary wobble, panic snatched brakes or violently wrenched handlebars, or threw your weight the wrong way... and more that you did that because you either failed to road far enough up the road and predict what you needed to react to, and or over reacted, reacting too much, too early, to too little....

Curiously you don't mention bending a car door or anything in your off... this would tend to suggest either you are an incredibly nervous nervous nancy..... or an incredibly devil-may care revin-kevin.... I would hazard a guess at an over cautious nervous nancy.... which would beg the suggestion that the MAIN thing you need is saddle hours and confidence, which good tyres can help offer.... as much by placebo effect as anything, but who cares as long as it saves the gravel rash! Take any help you can! In which, the biggest gain, after the hit of good, confidence instilling NEW and reputable brand tyres, WILL be from getting GOOD experience... which tends to mean NOT falling off, and lots of it, cranking the miles.... its two-prong attack, some technology in the tyres, but most in the learning and skill, and getting 'smooth' and learning to look up the road and predict hazards before they can hurt you.

In which, DAS training may be a help, BUT DAS training is mostly teaching you how to pass a motorbike test, it isn't necessarily teaching you how to spot the dangers on the road, or dodge them in every situation, in every weather, OR to be smooth... does tend to build confidence quick though, which may help, as long as you dont let it get too far ahead of competrance...

Back to you... its your arse kimo-sabi.....

But No, there's no such thing as a 'winter' tyre, really, even on an american car, in Mitchigen, where they'z law!
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2Hondas
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PostPosted: 11:13 - 02 Nov 2018    Post subject: Reply with quote

Tef, I read the first and last sentence of what you posted and couldn't be bothered to read the rest.

No such thing as a winter tyre? Utter nonsense.

Have you ever been to any cold countries? Scandinavia or areas of eastern europe?

Winter tyres have loads of little blocks on the tread.
More blocks = more movement
more movement = better at heating up, which in turn helps them get to a usable operating temperature.

As for the OP, unless there's black ice or diesel, it must be poor technique, poor tyre maintenance or some utterly terrible nylon tyres.
Were the cars around you also slipping?
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Teflon-Mike
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PostPosted: 11:53 - 02 Nov 2018    Post subject: Reply with quote

2Hondas wrote:
Have you ever been to any cold countries? Scandinavia or areas of eastern europe?

I spent a good part of my yoof in Alberta Canada, and learned to drive there in -30DegC conditions... is THAT cold enough for you?

As to Winter Tyres, try reading more than two sentences before arguing symantics about the bit you ent read!!!

There's tyres. They come in many shapes and sizes and styles; what makes one any 'better' in some circumstances than any other is very very dependent, and 'classification' remains incredibly nebulouse, and in most cases, like North America, arbitrarily in the head of the pen-pusher that writes "Winter Tyres Must be fitted after the 1st of November"... and significantly still don't apply to motorbikes, only cars and trucks!
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Riejufixing
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PostPosted: 12:04 - 02 Nov 2018    Post subject: Re: Do winter tyres exist? Any technivs to regain control? Reply with quote

tara1234 wrote:
Hey so I came off twice earlier today both times less than 5 mph on the same road in heavy traffic. I felt the bike going and put my footbdown but still dropped the bike. Is there any technics that I can do to regain control or should I just drop the bike and hope for minimal damage?

Also as I dropped the bike duo to wet conditions are there wet weather tyres I can put on it to make maintaining controleasier.

Lastly will doing DAS actually stop me coming off or am I coming off because I lack experience?


Which end went, or both at the same time, or what?
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rpsmith79
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PostPosted: 12:07 - 02 Nov 2018    Post subject: Reply with quote

Teflon-Mike wrote:
I spent a good part of my yoof in Alberta Canada, and learned to drive there in -30DegC conditions... is THAT cold enough for you?

As to Winter Tyres, try reading more than two sentences before arguing symantics about the bit you ent read!!!

There's tyres. They come in many shapes and sizes and styles; what makes one any 'better' in some circumstances than any other is very very dependent, and 'classification' remains incredibly nebulouse, and in most cases, like North America, arbitrarily in the head of the pen-pusher that writes "Winter Tyres Must be fitted after the 1st of November"... and significantly still don't apply to motorbikes, only cars and trucks!


Tef, nobody reads more than 2 sentences of your drivel, have you not managed to work that out yet
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Riejufixing
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PostPosted: 12:25 - 02 Nov 2018    Post subject: Re: Do winter tyres exist? Any technivs to regain control? Reply with quote

Yes, winter tyres ("mud & snow", "M+s") do exist. I've never had them on a bike, but on cars/vans they do make some difference. I've seen a Heidenau M&S tyre on a scooter, and was wondering about getting Anlas Winter Grip tyres for a 125 byt they don't come in the right size.

M&S tyres have a lot of tiny sipes in the tread, like this:
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Riejufixing
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PostPosted: 12:44 - 02 Nov 2018    Post subject: Reply with quote

Teflon-Mike wrote:
Oh-Kay.... "Winter Tyres'...... well, that's a car 'thing' and peculiarly an American 'thing'[1]

well Force = Mass x Acceleration... or back-to front, acceleration is force divided by mass... less mass you have the less acceleration you get for any applied force...[2]


1) Plus legally required in Winter in about 10 European countries, plus "Russia and all that"...

2) Erm, what?
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Johanna
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PostPosted: 12:48 - 02 Nov 2018    Post subject: Reply with quote

rpsmith79 wrote:
Teflon-Mike wrote:
I spent a good part of my yoof in Alberta Canada, and learned to drive there in -30DegC conditions... is THAT cold enough for you?

As to Winter Tyres, try reading more than two sentences before arguing symantics about the bit you ent read!!!

There's tyres. They come in many shapes and sizes and styles; what makes one any 'better' in some circumstances than any other is very very dependent, and 'classification' remains incredibly nebulouse, and in most cases, like North America, arbitrarily in the head of the pen-pusher that writes "Winter Tyres Must be fitted after the 1st of November"... and significantly still don't apply to motorbikes, only cars and trucks!


Tef, nobody reads more than 2 sentences of your drivel, have you not managed to work that out yet

I enjoy reading all of Tef's posts. I find them informative and also entertaining.

However, I don't agree about the winter tyres. I grew up in Finland. There is a specific date when people swap to winter tyres (or back in the spring). Accident rates if it gets properly cold before the changeover are very high because of the inferior summer tyres.

Driving in snow requires a lot more caution even with winter tyres. It's easy to slide around corners and stopping distances are much longer, but the winter tyres do help a little bit.

I would not ride a bike there in the winter. I would imagine you need a tread pattern that sheds snow otherwise the tread will fill with compacted snow and you'll effectively be on slicks. Then you're properly f***d going around corners or stopping in control. Hence a winter tyre would need widely spaced knobs or short spikes. I would also think tapered grooves rather than straight-edge grooves would shed crud more easily. I still wouldn't do it... except for fun in an off-road environment with a bike I don't mind dropping.
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rpsmith79
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PostPosted: 12:49 - 02 Nov 2018    Post subject: Reply with quote

Teflon-Mike wrote:
Oh-Kay.... "Winter Tyres'...... well, that's a car 'thing' and peculiarly an American 'thing'[1]

well Force = Mass x Acceleration... or back-to front, acceleration is force divided by mass... less mass you have the less acceleration you get for any applied force...[2]


Riejufixing wrote:

1) Plus legally required in Winter in about 10 European countries, plus "Russia and all that"...

2) Erm, what?


Damn, all this time MotoGP have been doing it wrong, they should have been making their bikes heavier to improve acceleration, how dumb are they Laughing
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chris-red
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PostPosted: 14:27 - 02 Nov 2018    Post subject: Reply with quote

davebike wrote:

Do not use the front brake at low speed (sub 15/20)


Nonsense.
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tara1234
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PostPosted: 14:55 - 02 Nov 2018    Post subject: Reply with quote

both times it happened when moving off trying to weave round cars in gridlock conditions. Might have been paint markings that seperate lanes.

I may have used the front brake no idea which wheelfell out.


In regards to weight does that mean if my bike is fully loaded, fulltankbag, saddlebags, stuff tied to the back seat that my bike is more stable as it has another 20-50 kg.
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2Hondas
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PostPosted: 15:23 - 02 Nov 2018    Post subject: Reply with quote

tara1234 wrote:

In regards to weight does that mean if my bike is fully loaded, fulltankbag, saddlebags, stuff tied to the back seat that my bike is more stable as it has another 20-50 kg.


Possibly while riding in a straight line, but I'd have thought it'd make you less stable when maneuvering as any more weight is weight you've got to keep upright when you're not perfectly balanced.

I assume 50kg is an exaggeration. 50kg of luggage is insane unless you're carrying around 2 full bags of cement. In which case, a bike of any sorts doesn't feel like it's an appropriate means of transport for you. Even 20kg is an awful lot.
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Teflon-Mike
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PostPosted: 16:39 - 02 Nov 2018    Post subject: Reply with quote

tara1234 wrote:
In regards to weight does that mean if my bike is fully loaded, fulltankbag, saddlebags, stuff tied to the back seat that my bike is more stable as it has another 20-50 kg.


Technically... probably... the added wight means more mass any force has to shift so it will move it more slowly, and hopefully more predictably.... B-U-T.... its all dependent...

Stick a pillion on the back seat.. they do the usual of trying to look over you, around you, leaning the wrong way... they can be an effin bluddy night-mare DE-Stabilising the bike...

The generality still tends to hold though, and it's a lot more 'exiting' shall we say to try carry Snowie accross town on the 125, where her mass and mine is more than that of the bike, and as a rider in her own right, she's even more wriggly than your typical non-riding passenger, back-seat riding for me, on top of trying to look round my barn-door shoulders, or over my crash hat that she's just head-butted for the umptieth time..... than it is on the big-bike, with twioce the mass in it making her antics that much less significant... Heck, my daughter is about 7stone, wringing wet, what's that, less than 100lb; on the big bike she can be clambering about the bunny, snap-chatting her mates, taking photo's of her brother in car behind, doing a hand stand on the saddle... and I barely even know she's there, the mass balance is so favorably in the heavier bike.... B-u-t... its not the best scenario!

Luggage! We HOPE shouldn't move anywhere near as much, so 'should' be better ballast... but.. does depend how its loaded.

If its behind the rear-axle on a rack, it can make the bike both top heavy and nose light. If it's in panniers, they will normally be about over the top of the rear axle, they can still make the bike tail-heavy and nose light, but the weight tends to be lower down not raising the CofG.. though, it needn't be that well balanced side to side.

If it's in a tank-bag.... I do like my tank bag, B-U-T.. I wouldn't like one I think on an SR, I certainly didn't on Snowies Cruserette thing. Even on my VF-Thou that weighs quarter of a trucking ton... and has a pretty flat tank, tank bags still are want to wander around between your arms, even though the weight is about as centralized as it can be.

Mention of Snowies Cruiserette thing; she actually grumbled about the over-size and hard to find wiered size, and rock-hard compound back tyre, 'Stepping Out' on her at even mild inclinations, especially at low-speed.... Riding 'solo' I cant say that I found that tyre 'so' horrible, but it wasn't all that confidence inspiring.. but two-up taking Snowie to look at other bikes, Yeah, actually I DID have more confidence in the thing, and it DID seem, with more load ob it to actually do a bit more gripping....

B-U-T... it's a bit subjective, and it's as much were the weight is placed as much as the fact that there is weight at all.

tara1234 wrote:
both times it happened when moving off trying to weave round cars in gridlock conditions. Might have been paint markings that seperate lanes.


There-in you have probably given the clue to your problem... what the heck were you doing trying to weave around cars?

'Filtering'... it is a sop to impatience to let you feel like you are doing 'something' and not a martyr frustrated by circumstance....

You are, in that situation, using a lot of body-english to make the bike make very tight maneuvers in very small space... A-N-D similteniousely trying to spot them spaces, as WELL as make all the normal obsevations you should and need to, JUST to stay still!

On a big-bike.... I have the power to makie space, pretty much at will, and if I want to be ahead of these six cars.. well, I DON'T need to risk life and limb 'filtering' past one at a time in stop-start traffic.... I can sit out, until a set of traffic lights appear, I can pass perhaps a dozen cars as they slow to stop for them traffic lights, then use the acceleration of a big bike to get off the line and infront of the whole lot, in one swift, relatively save go, when the lights change, and be chasing the tail of the next set of traffic before the lead car at the lights has found first gear....

On the tiddler.... I cant do that, and it IS tempting to try and exploit the things 'manouverability' to filter through stationary or slow-moving traffic to make what ground it can, without the oomphg to do it in one go.......

B-U-T... as you have discovered the hard way.... its risk-vs-reward... and the risks ARE high... and actually, the rewards, as far as getting to your destination any sooner are NOT all that great for it. It IS mostly the psycological reward of "ooh! I can DO SOMETHING! I dont have to sit here like a lemon" That is the reward.... which is even more transient and illusionary than the small time you probably dont gain for it.

Relax; wanna get to work ten minutes sooner? Leave the house quarter of an hour earlier, and NOT make stress for yourself, and dont take risks you don't have to"

Its pretty much that simple. The gains to be found filtering are pretty small; and on an 45minute run into a busy city... well, I found that it was practically no quicker riding like an utter loon, on a 1000cc bike, car-carbing to get there, than sitting it out in the box; warm, half asleep, playing follow-my-leader with the car infront's tail-lamps!

In the poorer weather, any time I saved taking the bike, was pretty much wasted with togging up and togging of either end, and packing the wet-weathers and lid in the top-box.

In the better weather? Well, it was certainly more 'fun', but taking even as many risks as I did, I'd only save about the lenght of time to listen to Bohemiam Rhapsody on the radio... so less than 5 minutes, not even 10%.. and for that time save, I would have saved MORE just not having the second cup of coffee before I set out.

Filtering, is NOT compulsory on a motorbike.. it IS dangerous.

The actual practice of filtering has no legal standing; it comes under 'over-taking' rules of which is that its a high-risk maneuver YOU take at YOUR risk.. so make bludy SURE its safe to do before you do!

Say it over and over, car drivers do NOT look out for bikes. Even if they DO look, they often don't know what the heck they are looking at, even less what they aught to do about it.

And filtering, you are creeping up on them from behind, putting yourself in a place they just do NOT expect to even NEED look for... CARS dont do that sort of thing!

As biker, with experience you develop the biker's sixth sense; its not 'really' its just a much more acute and heightened sense of often sub-conciouse awareness, and you dont conciousely 'notice' things like cars front wheels 'twitch' as driver plans to steer into your lane or wotnot... but you do asililate and respond to it... and oh so often its what 'saves' an older bikers bacon....

BUT you is a fresh-faced CBT newby, the ink still wet on your DL196... it can take years and miles to evolve that sort of sub-conciouse awareness, and right now you are still rather over-loaded JUST with getting used to things like the biting point, and shifting gear, and using the safety position....

It is NOT something you need do..... not never... so WHY even try, if you dont have to! Stay in lane, stay in queue and sit it out... let ped-boi go past shaking his head wondering why you dont filter... they do it to me, on the big-bike, they may learn, probably the hard way when some-one decides they are going to do a U-Turn out of the stationary traffic, aint looking, aint looking for bikes, and Oh, Sorry-Mate-I-Didn't-See-You... thats a nasty dent in my dooroor Didn't you see my indicator! I hope you got good insurance..... A-N-D technically they were 'over-taking' the risk was on them, they should have been watching for cars pulling out the queue unexpected like, it is at best a 50/50 fault... but bikers the one with the broken leg.... So IS it really worth it? Let Ped-Boi think what they will, you do NOT have to take them risks, and in the balence the rewards for them are pretty negligible.

IF you are competent enough to be lane-splitting, filtering, carving up; traffic, and doing it on reguilar basis.. you is competant enough to go get a full licence.. and STILL its not something you HAVE to do.

Take the hint; there-in probably lies the first fail, and like I say accidents happen when confidence outstrips competence....

Filtering IS one of the most hazardouse things we do on a bike, and you do NOT have to do it, and certainbly not straight off CBT.

Yes, white lines CAN be a trip-trap out to get you... they tend not be that bad, but again, the problems compound and conspire; white lines, in the UK should be painted with 'gritted' paint, and actually are as or even more grippy, in terms of co-efficients of friction, than ordinary tarmac, but, they are a road irregularity, just the change in surface grippiness is a change, the fact that they are usually over painted so often they can be as tall as half a house brick, can mean they are also a 'bump'... and in a filtering scenario, its likely you are riding over them not obtusely as in at 90 degress, but obliquely, as in perhaps only a few degrees off riding 'along' them.. means that they take longer to cross, the irregularity is extended, the more effect it can have...

And why were you crossing white line to 'filter'? Good bet you were trying to 'hug' the line of cars you were trying to pass, but there wasn't really enough room for you to pass in ytour lane without crossing white middle white line...

IF it was a duel carriageway... why no cars on outer lane you were skirting? Or were you doubling the risks trying to split the queues cars on either side?

If it was single carriageway... why no cars on the opposite lane? If there weren't why hedge the line? Cross the damn thing, get the bike over, middle of the oposite lane, give yourself room to pass the stationary snarl...and chance to make the crossing of the line more obtuse and give it less chance to influence bike....

If there WERE cars coming the other way, WHAT the feck were you even thinking of, WHY didn't you stay the fcuk put!

In that, it IS so much down to experience and judgement.... and as said, the most likely start of the fail.

After that, doing the wrong thing, being in that lane-splitting situation to start with, any MORE errors or problems will compound and conspire.... and at the moment, your judgement, evidenced by very fact of trying to filter, is the most significant.

Tyres, will have influence, but they wont stop you making silly decisions; nor will they stop you making panic reactions, snatching the bars, leabing the wrong way, grabbing the brakess etc etc etc.. which give you plenty of chance for the inevitabvle clusterfuck that got you were it did....

Remember the mantra; DONT RUSH! Rushin' be fast way to hurt on a motorbike!

No need to filter; don't ramp the risks if you don't need to. Take the pressure off yourself, that's pushing rushed and panicked decisions, leave earlier, get there sooner, and no need to panic along the way!

Take your TIME, and if needed GIVER yourself that time, by setting out sooner, rather than trying to rush. Time to see whats coming, timer to react to whats happening, time to think things through, NOR rush into danger, oftren for no more reason that some compunction you 'feel' you aught to be doing 'something'... like shifting gears, like blipping the throttlke... RELAX, if you dont HAVE anythingf to do... that's GOOD... enjoy, DONT start fretting that there 'must' be somnething you should fret about, and fret trying to figure out what that is... and MAKING work, making danger for yourself trying to fill that fret-space!

Miles-Davis 'Cool' riding... maximum motion for minimum effort... chill, relax, go with the flow... and enjoy the ride! DONT goi making problems for yourself 'pushing' for too much, too soon... rusahin' be fast way to hurt on a bike! Take it easy, and slow, is smooth and smooth is swift.... the pace will come, BUT not from rushing.
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Evil Hans
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PostPosted: 16:44 - 02 Nov 2018    Post subject: Re: Do winter tyres exist? Any technivs to regain control? Reply with quote

Riejufixing wrote:
Yes, winter tyres ("mud & snow", "M+s") do exist


Winter tyres and M&S tyres aren't quite the same thing. Mud and Snow tyres have a tread that works in mud and snow. Winter tyres have a compound and tread pattern that works at low temperatures.
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Riejufixing
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PostPosted: 17:11 - 02 Nov 2018    Post subject: Re: Do winter tyres exist? Any technivs to regain control? Reply with quote

Evil Hans wrote:
Riejufixing wrote:
Yes, winter tyres ("mud & snow", "M+s") do exist
Winter tyres and M&S tyres aren't quite the same thing. Mud and Snow tyres have a tread that works in mud and snow. Winter tyres have a compound and tread pattern that works at low temperatures.

Yes. I've been thinking about getting a spare pair of wheels for the boy's Kisbee, and fitting winter tyres, but he'll be RS3-ing I think.

What d'you reckon on fitting a winter tyre to the front only?
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