Prima Roller Weight Tuning Kit (20x12)

This is probably the best way to go about tuning your CVT transmission!, Included in this tuning kit are 12 sets of 3 rollers, for a total of 36

PRIMA ROLLER WEIGHT TUNING KIT (18x14) *6gm - 17gm* FOR 150cc

Stage6 Roller weight tuning kits 15x12 - ScooterSwapShop

If you're looking to improve the performance of your 150cc mini bike or go karts, the Performance Prima Roller Weight Tuning Kit might be just what

150cc Performance Prima Roller Weight Tuning Kit (18x14, 6g to 17g)

Dr. Pulley Variator Roller Weight Set 20x12 (Vino, Zuma 125)

SSP-G ROLLER TUNING WEIGHT KIT (15X12) *2gm - 13gm* FOR JOG YAMAHA

Prima 20x12 Roller Weight Tuning Kit for Yamaha Zuma Vino 125

Prima Roller Weight Tuning Kit (20x12) : Automotive

NCY Performance Golden Pulley Variator Yamaha Zuma 125 – Steady Garage

Engine & Transmissions – Primo Scooter Company

This will fit ALL Yamaha based 50cc horizontal 2 stroke engine with 15X12 size rollers. For those of you unfamiliar with roller weights, they are an important tuning device and have a significant impact on your scooter's performance! They should be checked/changed every 1000 miles (per maintenance schedule) to keep your scooter running tops. Over time, roller weights will develop flat spots which will impair the performance of your scooter.

Roller Weights - (15x12, 11 grams); 50cc 2T Yamaha, Minarelli, (NCY Brand)

Prima Roller Weight Tuning Kit (15x12) – Scooterworks USA, LLC

Dr. Pulley Variator Roller Weight Set 20x12 (Vino, Zuma 125)

NCY Roller Weights (20x12)

POLINI 16x13 ROLLER WEIGHT TUNING KIT IN 5.5, 6, 6.5 & 7 GRAM