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So turns out bikes can be dangerous. Who knew?

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KnightsFall
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PostPosted: 20:26 - 05 Oct 2015    Post subject: So turns out bikes can be dangerous. Who knew? Reply with quote

So I kind of broke my arm just below my right shoulder. Came off at about 15-20 on a wet, lousy road surface. Inexperience almost certainly played a part but the off duty copper who had followed me for some time thought I was being sensible for the conditions.

Basically, came down a hill that bent round to the left with visibility not too far around it. Came up behind car waiting to turn right. Tried to slow. Couldn't. Fell off. Landed on shoulder.

Bike has damaged instruments, right foot peg and brake lever and a few more cosmetic bits. Waiting to hear the full butchers bill.
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Rogerborg
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PostPosted: 21:54 - 05 Oct 2015    Post subject: Reply with quote

Sad times. Sad I honestly don't remember this much diesel and god awful slippery tarmac even a few years back. Music's too loud, get off my lawn.

SPILL COUNTER!

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zark
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PostPosted: 21:56 - 05 Oct 2015    Post subject: Reply with quote

Pics of off duty plods fireblade pls



And GWS fella Thumbs Up
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Accuhaler
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PostPosted: 22:10 - 05 Oct 2015    Post subject: Reply with quote

This happened to me this year, but I broke my forearm just next to the elbow, couldn't move my forearm for like 2 weeks.

Is this the same for you, but your whole arm?
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KnightsFall
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PostPosted: 22:29 - 05 Oct 2015    Post subject: Reply with quote

Off duty copper was driving a Civic. Not a biker himself, so he said. I was conscious of him behind me but obviously did not know his vocation. Was mostly thinking how I might be getting on his nerves by slowing so much for corners. Kind of helps to have someone say I was being sensible but also makes it harder to know what I could have done better. Can't shake the feeling that the car in front was being somewhat hesitant and not making use of the central area to make the turn. Does not absolve me of blame but might be part of the reason I did not react well enough. Or maybe I'm overthinking it. Paramedics assumed it was a manhole cover but I'm pretty sure it was not.

Accuhaler wrote:
This happened to me this year, but I broke my forearm just next to the elbow, couldn't move my forearm for like 2 weeks.

Is this the same for you, but your whole arm?


Basically, yeah. I have very little movement in my right arm and the doctors did insist on putting that to the test. Hurts like a motherfucker and the painkillers they gave me don't seem all that effective.

Maybe it makes me crazy but I still want to get back out there. I figure I will be on public transport for at least a month, but I want to get on with training asap. Maybe the route I should have taken to begin with.
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DrDonnyBrago
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PostPosted: 22:41 - 05 Oct 2015    Post subject: Reply with quote

Was it a 125? We seem to get a disproportionate number of 125s crashing out in the rain.
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KnightsFall
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PostPosted: 22:43 - 05 Oct 2015    Post subject: Reply with quote

Incidentally, leaky Oxford jacket came away with only a few scuffs, even in the likely area of impact. Crap is this is, I figure no padding might have left me with a shattered shoulder or something. Was wearing sturdy, non-motorbike boots that I had just bought and they aquitted themselves well enough. No leg protection so lucky to get away with a slightly bloody knee. Also new gloves. I guess they worked well enough. Left hand hurts some but still works.
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KnightsFall
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PostPosted: 22:45 - 05 Oct 2015    Post subject: Reply with quote

DrDonnyBrago wrote:
Was it a 125? We seem to get a disproportionate number of 125s crashing out in the rain.


YBR125. Might make for a compelling argument to upgrade to something with better brakes and tyres as soon as possible.
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Polarbear
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PostPosted: 23:05 - 05 Oct 2015    Post subject: Reply with quote

I think its a lack of weight. I could do corners in shitty weather on any of my big bikes but riding my daughters 125 used to really shake me up.

A combination of light weight, skinny tyres and brakes that are almost too good in the wet for the bike made it very twitchy.

I hate this 125 law. A nice little 500 is a much much safer bike than a bloody 125 IMO.
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MCN
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PostPosted: 23:49 - 05 Oct 2015    Post subject: Reply with quote

Hard luck.
GWS.
Paint Diagram.
Pics or it never happened.

You could try up-grading your brakes to get the very very best out of them.

I fitted a HELL braided line to a 125. It made a hoowur of a difference to the brake effect. Not just talk. Smile

Keep the discs clean and the calliper serviced.

Work on Improving your Roadcraft. Karma

Police Motorcycle Roadcraft. (It is a good book but a wee bit Gay in some bits.)
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mentalboy
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PostPosted: 23:55 - 05 Oct 2015    Post subject: Reply with quote

MCN wrote:


You could try up-grading your brakes to get the very very best out of them.

I fitted a HELL braided line to a 125. It made a hoowur of a difference to the brake effect. Not just talk. Smile

Keep the discs clean and the calliper serviced.



Whilst that is maintenance that everyone should be on top of, Polarbear has a point about the twitchy nature of smaller bikes. Sharper braking just means you end up eating tarmac quicker on a small machine!!!


Last edited by mentalboy on 07:48 - 06 Oct 2015; edited 1 time in total
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talkToTheHat
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PostPosted: 01:32 - 06 Oct 2015    Post subject: Reply with quote

The lower ground pressure of a smaller bike means they aquaplane more easily. Worst are mini-cruisers with extra wide tyres and rearward weight distribution. Of course if it's fitted with cheap nasty tyres or ones that have aged plenty then it will be extra fun in the rain. 125 brakes are hardly sharp, I thought the brakes on my GZ were pretty useless untill I locked the front and fell of.

Quote:
Basically, came down a hill that bent round to the left with visibility not too far around it. Came up behind car waiting to turn right. Tried to slow. Couldn't. Fell off. Landed on shoulder.


Be able to stop in the amount of road you can see to be clear. Yep it means being real slow around blind bends in the wet. Sounds like you found out the hard way.

A question, where did your jacket hit the ground? Was this a strike on the armour or otherwise?

I hope you heal up OK.[/quote]
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MCN
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PostPosted: 01:59 - 06 Oct 2015    Post subject: Reply with quote

mentalboy wrote:
MCN wrote:


You could try up-grading your brakes to get the very very best out of them.

I fitted a HELL braided line to a 125. It made a hoowur of a difference to the brake effect. Not just talk. Smile

Keep the discs clean and the calliper serviced.



Whilst that is maintenance that everyone should be on top of, Polarbear has a point about the twitchy nature of smaller bikes. Sharper braking just means you end up ending tarmac quicker on a small machine!!!


Are you saying brakes should be shit?
Or what?

I can lock the brakes on any bike (with good brakes) but still not slide the front. You need to practice braking.
The brake should be capable of locking the wheel but then small bikes have shit brakes so normally won't.
This is why there is a push to install ABS on bikes to control wheel lock.

I have two BSA bike that I need to start braking last week to get them to stop.

Better Roadcraft is the easy answer. Smile
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UncleFester
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PostPosted: 07:03 - 06 Oct 2015    Post subject: Reply with quote

Polarbear wrote:
I think its a lack of weight. I could do corners in shitty weather on any of my big bikes but riding my daughters 125 used to really shake me up.

A combination of light weight, skinny tyres and brakes that are almost too good in the wet for the bike made it very twitchy.

I hate this 125 law. A nice little 500 is a much much safer bike than a bloody 125 IMO.


I had a 2013 YBR125 from new, it came with CheungShin or some Chinese things - they were ok in the dry but in the damp or on anything greasy, combined with the light weight of the bike they were a liability, it always felt like it was about to slip away and they seemed a really hard compound.

I never did bother to change them as i did my DAS and upgraded to a bigger heavier bike with decent tyres on it.

Plenty of comments on here ( use the search ) and on other forums about poor wet performance from 125 tyres though. That said, no one ever really separates the tyre from the bike so the issue may well be a combined one along with a fistful of newish rider front brake and wet / greasy roads.

TL:DR sometimes it's just not your day Thumbs Up
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UncleFester
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PostPosted: 07:09 - 06 Oct 2015    Post subject: Reply with quote

MCN wrote:


I can lock the brakes on any bike (with good brakes) but still not slide the front. You need to practice braking.
The brake should be capable of locking the wheel but then small bikes have shit brakes so normally won't.
This is why there is a push to install ABS on bikes to control wheel lock.


Errr if you lock the brakes up without ABS then the tyres are sliding. You cannae change the laws of Physics.

Small bikes don't have shit brakes, the bikes are light and seem to have cheap hard compound long life tyres - easy to lock the brakes up. Combine that low weight with a crap road surface and some inclement weather, throw in a touch of hamfistedness and the problems compound to make an off more likely.

It is nothing to do with the ability of the brake system.
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KnightsFall
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PostPosted: 07:45 - 06 Oct 2015    Post subject: Reply with quote

Wish I could remember clearer. It is a bit of a blur. Did not hit my head but could not say if I blacked out from pain or anything. Perhaps more likely it is just the shock of it.

There is some scuffing around the shoulder armour and it would have been right on top of the injury, so I assume the armour hit first. I don't think I slid far at all, as there was little tearing and my trousers were ripped but hardly shredded.

99% sure no aqua planing was involved (as I understand the term). It was an uneven surface with little standing water and my speed was low. The YBR does also have skinny tyres. Breaks might have been wet though. Had not used them much for a bit and they did seem ineffectual at first then bit quite suddenly. Pretty sure I was upright when I really started to brake and it was far enough after the bend to have no real lean going on.

I think I might have been able to get around them, had I been thinking more clearly. I agree that there is room for improvement in my roadcraft
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mentalboy
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PostPosted: 08:13 - 06 Oct 2015    Post subject: Reply with quote

MCN wrote:


You could try up-grading your brakes to get the very very best out of them.

I fitted a HELL braided line to a 125. It made a hoowur of a difference to the brake effect. Not just talk. Smile

Keep the discs clean and the calliper serviced.


mentalboy wrote:

Whilst that is maintenance that everyone should be on top of, Polarbear has a point about the twitchy nature of smaller bikes. Sharper braking just means you end up ending tarmac quicker on a small machine!!!


MCN wrote:

Are you saying brakes should be shit?
Or what?

I can lock the brakes on any bike (with good brakes) but still not slide the front. You need to practice braking.
The brake should be capable of locking the wheel but then small bikes have shit brakes so normally won't.
This is why there is a push to install ABS on bikes to control wheel lock.

I have two BSA bike that I need to start braking last week to get them to stop.

Better Roadcraft is the easy answer. Smile


No, I'm not saying brakes should be shit, I'm saying that they should be well maintained and upgrading to braided lines or even better calipers is no bad thing.

And yes, a brake (especially the front) should be capable of locking the wheel...

And yes, Roadcraft and road awareness/handling courses are a great idea....

And no, my braking capabilities are not the issue question here. The last time I slung a bike down the road was because I had 'thumb up bum and mind in neutral' and grabbed a handful of front brake, bike went down quicker than you could blink!!! Laughing
Rear wheel lock ups however are something that most people with a little training/experience can ride through

AND finally, you realise that by 'locking' the wheel means that the wheel will stop turning and that if the bike has forward motion it is by it's very nature sliding? Whether you drop it or not is another matter.

The point I was making is that smaller bikes seem easier to fling down the road (possibly not helped by the fact that many are generally ridden by newbies) and that a well maintained set of brakes on a reputable small machine is not a bad thing, braided lines give a sharper response and most inexperienced riders will find it much easier locking up the front if they have sharper brakes - not the same as having shit, badly maintained brakes.
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Kris
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PostPosted: 09:49 - 06 Oct 2015    Post subject: Reply with quote

Nothing to do with the weight, nor the brakes.

I bet it was on shitty OE tyres. That and a lack of experience IMO.
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blue_painted
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PostPosted: 13:22 - 06 Oct 2015    Post subject: Reply with quote

UncleBFester wrote:
MCN wrote:


I can lock the brakes on any bike (with good brakes) but still not slide the front. You need to practice braking.
The brake should be capable of locking the wheel but then small bikes have shit brakes so normally won't.
This is why there is a push to install ABS on bikes to control wheel lock.


Errr if you lock the brakes up without ABS then the tyres are sliding. You cannae change the laws of Physics.

Small bikes don't have shit brakes, the bikes are light and seem to have cheap hard compound long life tyres - easy to lock the brakes up. Combine that low weight with a crap road surface and some inclement weather, throw in a touch of hamfistedness and the problems compound to make an off more likely.

It is nothing to do with the ability of the brake system.


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MCN
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PostPosted: 14:23 - 06 Oct 2015    Post subject: Reply with quote

[quote="mentalboy"]
MCN wrote:

Bla de bla....

mentalboy wrote:

Bla de bla.....


I agree, I use a 125 now and then and can fire it at 'hazards' like a GP boss. I only have one concern and that is 'losing that precious momentum sucks'.

I was trying to say, 'With the standard rubber hose on the front brake there was a massive sponge which effectively hampered braking effect. The new HELL hose made the brake 'feel' more connected.'

A cheap upgrade to massively improve braking.

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UncleFester
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PostPosted: 14:38 - 06 Oct 2015    Post subject: Reply with quote

MCN wrote:


A cheap upgrade to massively improve braking.



I do hate it when people use words like huge / massive / amazing when talking about stuff like this, it's misleading at best.

This is merely your impression / feeling - in either case, it is merely an improvement and only in your opinion and even then it's only in the feel of them.

Now if you'd just said 'I thought it felt better and i was able to moderate my use of the brakes with greater accuracy' then that would be based on fact instead of internet exaggeration.
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MCN
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PostPosted: 15:25 - 06 Oct 2015    Post subject: Reply with quote

UncleBFester wrote:
MCN wrote:


A cheap upgrade to massively improve braking.



I do hate it when people use words like huge / massive / amazing when talking about stuff like this, it's misleading at best.

This is merely your impression / feeling - in either case, it is merely an improvement and only in your opinion and even then it's only in the feel of them.

Now if you'd just said 'I thought it felt better and i was able to moderate my use of the brakes with greater accuracy' then that would be based on fact instead of internet exaggeration.


Oh do calm down.

I don't think it deserved a whole post to say that.
But since you persevered.

The difference is massive.
The only failing in my statement is that I wasn't pedant enough to measure braking efficiency before and after.
And then with the evidence so collated offer a more precise and detailed analysis of the modification.

I hope you don't go through every post on the forum (or any other forums) looking for perceptual inaccuracy.

You will be kept busy.

Rolling Eyes

Don't troll a troller. Wink
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Fizzer Thou
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PostPosted: 17:38 - 06 Oct 2015    Post subject: Reply with quote

When Mrs.Fizzer went from a C90 Cub to a CB125TDE SuperDream the tandem piston caliper front brake was overkill,even back then in 1982.To have changed the rubber hose to a braided stainless line would have made the front brake even more aggressive than was necessary.

But it was the OEM Japlop tyres that were the limiting factor in every single way.They were awful and once replaced with some far superior Avons the bike was actually rideable in the wet.

When Mrs.Fizzer did her bike test,the examiner told her not to cover the front brake when performing the emergency stop.When the time came she grabbed a handful of front brake and the aggressive action momentarily locked the front brake.Having used the bike as a commuter around London for quite some time before her test,she learnt to cover the front so that she was able to brake more progressively than a sudden handful.

Once she passed her test she found riding a CB550F2 with big twin discs,Aeroquip brakelines and Ferodo pads far more fun when combined with superior tyres Thumbs Up
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MCN
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PostPosted: 19:39 - 06 Oct 2015    Post subject: Reply with quote

If the brake it too 'aggressive' then don't use all your fingers to pull the lever.
It's simple arithmetic.
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Pigeon
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PostPosted: 20:39 - 06 Oct 2015    Post subject: Reply with quote

Kris wrote:
Nothing to do with the weight, nor the brakes.

I bet it was on shitty OE tyres. That and a lack of experience IMO.


I binned my YBR clone on a slightly muddy bend on the original plastic chingping "tyres".

Fitted Metzeler ME22 and never looked back, the thing stuck to the road like glue in all weathers after that.
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