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0-60mph how important ??

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BIKEVIDDER
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PostPosted: 01:01 - 11 Nov 2011    Post subject: 0-60mph how important ?? Reply with quote

We have speed limits & all ride below them Rolling Eyes
Soooo bearing that in mind how important is acceleration ??
My rusty heap hits 60mph in around 7 secs in 2nd gear.
Nowt special I know as my Fazer (on sorn) does it in half the time in first.
What are your thoughts on acceleration.
personally I tootle looking for economy most of the time but a quick wrist twist is safe & legal fun.
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Frost
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PostPosted: 01:22 - 11 Nov 2011    Post subject: Reply with quote

0-60 is unimportant beyond a certain point. Sure it's very important on a 125 as it's basically all the performance it's got. However on something like a litre bike the limiting factor is the grip levels and rider skill. Modern sports bikes actually often have 0-60 times that are worse than their older counterparts. This is due to them being more track focused with 100mph 1st gears. A 50mph 1st gear will get you to 60 faster, but on a track you'd never use it thereby limiting the bike to only 5 gears. Modern engine electronics and fuel injection systems have made the power spread more even too making gear selection less critical.

Living in a city i find acceloration and brakes important, but then i've not been on a motorway in months Laughing
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Paris2
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PostPosted: 08:09 - 11 Nov 2011    Post subject: Reply with quote

I don't like to sit above the speed limit, I like my license.
So acceleration is important to me. I would rather have better acceleration than a higher top speed.
But then again I have never tried a 0-60 blast to see how fast I could do it, but a flick of the wrist to get through traffic and down slip roads is all the fun I need.
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Wafer_Thin_Ham
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PostPosted: 08:15 - 11 Nov 2011    Post subject: Reply with quote

Frost's pretty much spot on for me.

0-60 in it's self isn't important. You're never likely to do a sprint from rest to 60 mph. However acceleration is quite important.
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DrDonnyBrago
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PostPosted: 08:24 - 11 Nov 2011    Post subject: Re: 0-60mph how important ?? Reply with quote

BIKEVIDDER wrote:
We have speed limits & all ride below them Rolling Eyes
Soooo bearing that in mind how important is acceleration ??
My rusty heap hits 60mph in around 7 secs in 2nd gear.
Nowt special I know as my Fazer (on sorn) does it in half the time in first.
What are your thoughts on acceleration.
personally I tootle looking for economy most of the time but a quick wrist twist is safe & legal fun.



Anything half decent and 600cc+ will get there in less than 4 seconds, they would be slipping the clutch at high RPMs the whole time, be on the brink of doing a wheelie/spinning the wheel and it would be the best time possible by a pro rider. Us mere mortals couldn't expect anyway near that on a typical pull away from lights type scenario.


As for how important 0-60 times are, mainly just pub ammo against chavs bragging about their Type Rs. Anything from a 500cc parallel twin and upwards will be faster than most normal cars. 600cc+ sports bikes are very fast.
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doggone
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PostPosted: 08:40 - 11 Nov 2011    Post subject: Reply with quote

In the real world 0-60 isn't as useful as rolling on from around 30mph.
Most bikes really excel at this and it's a good part of why they are such fun in traffic as you can overtake so rapidly.
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BIKEVIDDER
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PostPosted: 08:56 - 11 Nov 2011    Post subject: Reply with quote

Interesting varied replies, nice one.
I'm doing a few mods to the bike, K&N filter, exhaust, Iridium plugs etc, as well as some basic service jobs neglected by the last owner (or owners !!) & out of curiosity I'm thrashing the 0-60mph times out of it as a measure of improvement in performance if any.
Acceleration when already rolling may be more useful (essential ??) & generally more fun.
0-60 is a learning curve about any bike though.
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Wafer_Thin_Ham
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PostPosted: 08:58 - 11 Nov 2011    Post subject: Reply with quote

BIKEVIDDER wrote:
Interesting varied replies, nice one.
I'm doing a few mods to the bike, K&N filter, exhaust, Iridium plugs etc, as well as some basic service jobs neglected by the last owner (or owners !!) & out of curiosity I'm thrashing the 0-60mph times out of it as a measure of improvement in performance if any.
Acceleration when already rolling may be more useful (essential ??) & generally more fun.
0-60 is a learning curve about any bike though.


I wouldn't have thought you'd be able to measure your power increase, but a decrease in 0-60. After a point you're limited by the bike's ability to wheelie rather than the power of the engine. With some bikes you'd make them faster to sixty by adding weight in the form of ballast around the front spindle.

IIRC iridium plugs don't offer a performance gain, just need to be changed less.
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Kickstart
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PostPosted: 10:39 - 11 Nov 2011    Post subject: Re: 0-60mph how important ?? Reply with quote

Hi

As fast acceleration, yes it is important. As a specific 0-60 time I don't think it is particularly. There is also a massive variation between riders as to how close they will get to what the bike is capable of. While a litre bike might manage it in ~3 seconds I suspect most riders would be closer to 4 seconds (and would still seem very fast).

DonnyBrago wrote:
they would be slipping the clutch at high RPMs the whole time, be on the brink of doing a wheelie/spinning the wheel


Not quite. Slipping the clutch is losing you a load of umph, but can be worthwhile if it enables you to use revs where the engine is producing a decent amount of extra umph. Hence on a performance 2 stroke where torque is produced in a fairly peaky manner it is worth slipping the clutch to keep the revs up at peak torque. With most larger bikes the torque graph is fairly flat, and peak torque at fairly low revs (compared to the red line). Slipping the clutch to keep the revs beyond peak torque is losing you umph both because of less torque and the losses from the slipping clutch. In these cases you want enough revs to be at a point where torque is reasonable (so avoiding any big holes in the delivery), and after that well off the clutch and using full throttle.

All the best

Keith
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robbieguy2003
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PostPosted: 10:50 - 11 Nov 2011    Post subject: Reply with quote

I'd agree with Frost and Big Ham.

From a standing still, it's all rider skill on bigger bikes, stop the front coming up (too much) - I dont think a floaty (i.e. few inches) is too bad and dont let the rear spin.

But apart from playing traffic light GP, which is easy to win anyway, it's not that useful.

I find acceleration from 30/40mph upto 70/80mph more useful, think joining a motorway/coming off a sliproad.

The only time I find the 0-60 useful is when coming out of a T-Junction onto national speed roads, which I have a few of round my way, however, I always leave shit loads of time anyway just incase (fluff a gear, slippy road/junction/other random issues).
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G
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PostPosted: 10:52 - 11 Nov 2011    Post subject: Reply with quote

Frost wrote:
A 50mph 1st gear will get you to 60 faster, but on a track you'd never use it thereby limiting the bike to only 5 gears.

A 50mph 1st gear would probably be slower as you need a gear change to get to 60 Smile. Also, having had a serious downgeared zx9 (and raced with other heavily downgeared bikes on track), going down too much often makes it harder to get a decent 0-60 time, because you've got to be very careful to stop the front coming up.

Once you're a little above idle, my GSXR1000 will wheelie at any point in first gear by opening the throttle hard. Don't really need any more than that!

As for the OP: I've got a bike that will do it as quickly as a modern bike that handles can; having ridden sports bikes a fair bit on a daily basis I soon got used to circa-3 second 0-60, so it lost it's novelty a long time ago.
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stinkwheel
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PostPosted: 12:34 - 11 Nov 2011    Post subject: Reply with quote

My Enfield does 0-58mph in 22.58 seconds over 1/4 of a mile. I have a timing certificate to prove it.

It's fast enough to ride on any road in this country.

So in response to your question, 0-60 time is not really very important at all.
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shadylee
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PostPosted: 23:39 - 11 Nov 2011    Post subject: Reply with quote

0-60 is very important,its what makes it safe for me to sit in between 2 lanes of cars at the traffic lights safe in the knowledge when the lights go green i can get away safely from the cage corridor....... Laughing
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WannaBeDude
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PostPosted: 23:59 - 11 Nov 2011    Post subject: Reply with quote

TLDR ...

AKA ... don't want to look at 0 - 60 mph big bike speeds .. ! Crying or Very sad
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totalllama82
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PostPosted: 00:50 - 12 Nov 2011    Post subject: Reply with quote

stinkwheel wrote:
My Enfield does 0-58mph in 22.58 seconds over 1/4 of a mile. I have a timing certificate to prove it.

It's fast enough to ride on any road in this country.

So in response to your question, 0-60 time is not really very important at all.


mmm yes-ish....

I use my bike daily to commute and it isnt the 0-60 that is important. its the rollon from filtering speeds that and and bullying the 318i or A4 TDi thats in the outside lane (which I believe traffic coppers give you bonus points for).

Dragging 0-60 ill be mono well past 60 if my hand and arse obliged. Ive never found the need to exceed this though...
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stinkwheel
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PostPosted: 01:06 - 12 Nov 2011    Post subject: Reply with quote

Meh. I can filter like a London courier on the enfild. Who dares, wins. Should've seen me going round the M25 on it last summer.

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