GENII transmission or under cut GENI???

[crazy_mooh]

my transmission of my bike need to be fix. So I was thinking to under cut or just get a GEN II. My bike is 2004 I just used it for drag race. Any information???

 

[SLEEPERBUSA]

The GENII isn't a direct replacement.
Just have yours cut.

 

[mestona]

Actually Vega just put a Gen 2 trans in his gen1....just sayin....

 

[SLEEPERBUSA]

My friend did it and they had to make a .001 spacer for it to fit right.
I'm just going by what they had to do.

 

[crazy_mooh]

I think I will just cut my gear that will be easier and use the money for the engine parts but I was thinking the gen II tranny is different....thanks guys

 

[crawler]

Gen 1 works better for drag racing.

Less dogs mean easier engagement. Many of the Pro-Street ikes that I've seen, have two dogs machined off each gear and run only two dogs per gear.

They never miss a shift and thats why, its a huge window to hit that way.

 

[APE Dustin]

It is called a pro-cut undercutting. It is where you remove half the engagment dogs for easier engagement. Heres some before and after pics of a Hayabusa trans that had the pro-cut done on it.

Before

After

 

[jeepinocala]

My friend did it and they had to make a .001 spacer for it to fit right.
I'm just going by what they had to do.

.001 spacer maybe they did a little more for thickness a .001 would not be any difference for gear fits