my riding style of changing gear for my stock rx135 clutchless
1st : 20km/hr
2nd : 40km/hr
3rd : 60km/hr
4th : 80km/hr
until highest topspeed hit 130 or 140 the most. :)
http://www.singaporebikes.com/forums/sh ... p?t=137010
check it out at sgbike forum tis guy nick 'M400' he doing mass product order he might b able to help u out :)