changing gears. setup for 136 track for 700 sxr

[hereismylife]

I remember some of the stuff I read and posted last year. I am wondering if there is some new info that might help me out with changing gears to keep the same oem spec speed & rpm.
I got reverse if that matter for the gearing.
My gears are 21 and 39

Thanks Joe

 

[Yamadooed]

I'm run'n a 20/39 combo on the 136er best all around gear I found fer the trail/lake/powpow ride'n, and the rpms are spot on... If your under 200lbs I'd go with the 21/39...

 

[hereismylife]

Well this is for my son. He is going to be carring a passenger which is my daughter. So maybe I could try it and see how the gear thing goes the way it is.
I just don't want it to be quick up to 60 and top out at 70 mph.

 

[Yamadooed]

Should hit close to 90 on the gun...

 

[hereismylife]

thanks