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proximity
Crazy Courier



Joined: 08 Oct 2004
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PostPosted: 00:48 - 08 Apr 2006    Post subject: Race bike gears Reply with quote
Why are some race bikes one up 5 down instead of the usual one down 5 up?
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Davo
Davo To The Rescue!



Joined: 04 Apr 2004
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PostPosted: 00:50 - 08 Apr 2006    Post subject: Reply with quote
As far as I'm aware it's to do with ground clearance issues while cranked over.

E.g. your foot doesn't get caught between the tarmac and the peg when your trying to change up.

Last edited by Davo on 01:00 - 08 Apr 2006; edited 1 time in total
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proximity
Crazy Courier



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PostPosted: 00:58 - 08 Apr 2006    Post subject: Reply with quote
But surely then your foot would be under the peg because you need to lift up to downchange?
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Cog Head
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PostPosted: 01:04 - 08 Apr 2006    Post subject: Reply with quote
on moto GP i belive that they change it accordingly to the majority of the corner direction on the track

id just get confused and end up trying to go up a gear from 6th but going down 1 Surprised big boom comes from engine
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Paul@125power
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PostPosted: 01:29 - 08 Apr 2006    Post subject: Reply with quote
proximity wrote:
But surely then your foot would be under the peg because you need to lift up to downchange?


But you only really need to do that when your slowing right down so you'll be near enough up right anyway.
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LUXY DJ
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Joined: 25 Sep 2005
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PostPosted: 01:43 - 08 Apr 2006    Post subject: Reply with quote
i got mine like this & not only is that the reason but also its more natural/easier for your leg to push down on lever & when your breezing it DOES feel better to just stamp on it Very Happy + you dont accidently go into neutral as much

& i got use to it after a day or two i even went back to riding a cb250 with normal gearing during the week yet was fine going from 1 to the other

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SoND
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Joined: 10 Jul 2005
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PostPosted: 03:33 - 08 Apr 2006    Post subject: Reply with quote
proximity wrote:
But surely then your foot would be under the peg because you need to lift up to downchange?


You shouldnt downshift in the middle of a corner. Back wheel will go mad and try and throw you off because of engine braking.
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Zimbo
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Joined: 09 Jul 2004
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PostPosted: 09:37 - 08 Apr 2006    Post subject: Reply with quote
proximity wrote:
But surely then your foot would be under the peg because you need to lift up to downchange?


The ground clearance is an issue on conventional gearshift patterns mostly when accelerating out of fast left handers, Devils Elbow at Mallory is a good example of this. You don't generally change down when cranked right over, it's likely to cause you to break traction on the rear and spit you off.
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craigs23
Mr Muscle



Joined: 08 Jun 2005
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PostPosted: 10:04 - 08 Apr 2006    Post subject: Reply with quote
Do Isle of Man TT Racers use a race-pattern gearbox?
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Old Thread Alert!

The last post was made 19 years, 336 days ago. Instead of replying here, would creating a new thread be more useful?
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