stock 90 clutching

[chunky0071]

OK let hear what would be my best clutching for a stock 90 ? We race mostly Xc with a few local Mx races . This is stock. Would like to see the bike little more respondsive if possible if not will just play around with and see what happens! Thanks for the help.

[chunky0071]

what size roller wieghts and torque spring just looking to try some thing?

[nordic quad]

This setup might work(Works for a stock 100cc Apex)With 20-30 gearing.
Torque spring:Black 1500RPM Koso or ZTR 1000
Small springs :1500RPM Koso
Roller veights:Around 4.5grams.

Stein A

[nordic quad]

Also if you just want to play around try adding a 1mm shim betveen the front variator halves for a moore responsive bottom end.(Will loose some top end.)

Stein A

[chunky0071]

Thanks just going to play around and see what he likes.