Roost Sprint / Rollers help.

[Connah]

SETUP
metrakitkit prorace II
Roost Sprint
24mm OKO

Im having a problem, I tried 4.2 gram rollers 1st, Which result in no power at all, Very boggy. So i went lighter to 3.5 gram rollers, Which wasnt much change at all.So i put 3 rollers in instead of 6, Which allowed the engine to rev and pull great, High RPM,s, I have red clutch springs in.

Im wondering if this is ok? as i cant find rollers this weight, And running 3 rollers is causing it to vibrate.

 

[tiba_karotsu]

you parts list is vague, can you post more details like what is your transmission composed of like vario kit, belt, rear pulley, springs, clutch, gears etc.

 

[Connah]

standard vario, PM tuning clutch using the red clutch springs, And the tension spring is blue made by polini, which i think is 15% increase, Polini secondary gear up kit, And the belt is a Hebo one.