What type of trans do racer bikes have? WSK and MotoGP?

Also they probably have clutchless shifts right? at least for up shifts? they use the clutch for down?

Finally, I was listening to draggin something podcast and the guy was like "dont like to race with the standard gearbox (one down, 5 up) I like the one up and five down."

what did he mean? click down to up shift and click up to downshift?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Mjfan12 &raquo;</TD></TR><TR><TD CLASS="quote">What type of trans do racer bikes have? WSK and MotoGP?

Also they probably have clutchless shifts right? at least for up shifts? they use the clutch for down?

Finally, I was listening to draggin something podcast and the guy was like "dont like to race with the standard gearbox (one down, 5 up) I like the one up and five down."

what did he mean? click down to up shift and click up to downshift?</TD></TR></TABLE>

most motogp **** is one off.

GP shift is what he is talking about, aka reverse shift. instead of 1 up 5 down, it's reversed. i liked GP shift, but then i switched to normal because i like to bang my downshifts down.

 

They use some sort of "quick-shifter" that momentarily kills the ignition when the shifter is loaded with enough tension.

For WSBK, their transmissions must, IIRC, use the same stock internals as the stock bikes.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Mjfan12 &raquo;</TD></TR><TR><TD CLASS="quote">What type of trans do racer bikes have? Also they probably have clutchless shifts right? at least for up shifts? they use the clutch for down</TD></TR></TABLE>


That would be Sequential Transmission, but none of us can afford that

 

Most modern sportbikes have their transmissions set up so that you don't need the clutch to upshift, any average joe on the street can upshift just by letting off the throttle and clickin' the shifter up, but race bikes have an electronic gizmo (that marm mentioned) that kills ignition for an instant while they bang the shift so they can go from 1st to 6th with the throttle pinned wide open without even twitching their wrist... And for downshifts they have slipper clutches (which many manufacturers are now including off the showroom floor) that slip when there's any significant difference between rear wheel speed and engine speed, saves from over-revving the engine or hopping the rear wheel.

Anyone feel free to correct me if my facts are skewed, I'm no expert by any means

 

Thats what I use

Power commander quick shifter, full throttle upshifts anywhere FTW.

Any the slipper clutch is helpful too

 

All this talk about trannies has me going

 

aaaaaaaaaahaha

 

Dude!! NOT cool. LOL

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Phoenix1 &raquo;</TD></TR><TR><TD CLASS="quote">Dude!! NOT cool. LOL</TD></TR></TABLE>

You looked...

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by MSchu &raquo;</TD></TR><TR><TD CLASS="quote">


That would be Sequential Transmission, but none of us can afford that </TD></TR></TABLE>


Uhhh.... we all have sequential transmissions.

GP Shift, by the way, is how it SHOULD be.

 

wow....

 

WHOOOOOSH!!!!

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Zapko Motorsports &raquo;</TD></TR><TR><TD CLASS="quote">GP Shift, by the way, is how it SHOULD be.</TD></TR></TABLE>

+1 on gp shift

 

Motec M400 ECUs have an option to cut ignition and fuel during a shift, getting a signal from a potentiometer located on the shifter. No lift upshifts. Of course this is for an FSAE racecar using a Honda F4i motor.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by rol1in0n20s &raquo;</TD></TR><TR><TD CLASS="quote">Most modern sportbikes have their transmissions set up so that you don't need the clutch to upshift, any average joe on the street can upshift just by letting off the throttle and clickin' the shifter up, but race bikes have an electronic gizmo (that marm mentioned) that kills ignition for an instant while they bang the shift so they can go from 1st to 6th with the throttle pinned wide open without even twitching their wrist... And for downshifts they have slipper clutches (which many manufacturers are now including off the showroom floor) that slip when there's any significant difference between rear wheel speed and engine speed, saves from over-revving the engine or hopping the rear wheel.

Anyone feel free to correct me if my facts are skewed, I'm no expert by any means</TD></TR></TABLE>

So It wont hurt my transmission to upshift not useing the clutch?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Tenacious T &raquo;</TD></TR><TR><TD CLASS="quote">

So It wont hurt my transmission to upshift not useing the clutch? </TD></TR></TABLE>

No I do it all the time, even on the street while commuting. Just do it right...

 

Reverse shift. Not GP. They're not the only ones that use a reverse shift pattern.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Chris y0! &raquo;</TD></TR><TR><TD CLASS="quote">No I do it all the time, even on the street while commuting. Just do it right...</TD></TR></TABLE>

Never done this so can you define "do it right" for me?

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Tenacious T &raquo;</TD></TR><TR><TD CLASS="quote">Never done this so can you define "do it right" for me?</TD></TR></TABLE>

Make sure the bike is unloaded and shift with a quick firm action. You can also do it for downshifts but it is a bit harder.

 

<TABLE WIDTH="90%" CELLSPACING=0 CELLPADDING=0 ALIGN=CENTER><TR><TD>Quote, originally posted by Chris y0! &raquo;</TD></TR><TR><TD CLASS="quote">Make sure the bike is unloaded and shift with a quick firm action.</TD></TR></TABLE>

yeah like that. from what i understand, let out of the throttle just enough for the revs to drop off, and bam, up a gear. then back on the gas.

 

*BBBBBZZZZZRRRRRRR...crunch*

And by God, stop pushing if you hear something that sounds like this

 

I have GP style shifting on my streeeeeetcccccchhhhhhhheeeeddddddddd motorscooter...

biiiiiiiiZZZZaPPPPPPPPPPPPPPPPPPPP Bitches.

 

You guys may know how to do it right but explaining it right is a whole nother story.
First, as you may know a transmission can shift when there is no load on it.
To cluthless shift the right way you want to preload the shifter, so lets say you want to upshift, lightly press up on the shifter. THEN when you want to shift you need to let off the throttle, only slightly. The point here is to find the sweet spot where the bike is neighter accelerating nor decelerating, it is more about timing than anything but you have that very short time to shift when there is no load on the transmission (ie. accelerating, decelerating). If you do it right the shift will be very smooth and you will know the second you do it correctly.
If this wasnt detailed enough, sport rider had an excellent article on it a few issues back which goes over it in slightly more detail.

 

and if you do it wrong one too many times.....time for a new tranny...new 2nd gear... etc.