Prima Roller Weight Tuning Kit (18×14, 6g to 17g) BUDDY 125/
Original price was: $31.20.$21.64Current price is: $21.64.
92 in stock
Description
This Prima Roller Weight Tuning Kit is the best way to dial in the CVT transmission on your Genuine Buddy or 157QMJ GY6 engine to suit your driving style.
Specifications:
- 12 sets of 3 rollers (36 total)
- 18×14 rollers
- Weights from 6g to 17g
- Combining 2 sets of rollers lets you tune your transmission to suit your driving style (lighter weights = higher RPMs, heavier weights = lower RPMs)
For example, using 3x 10g and 3x 11g rollers (alternating weights in variator) gives you 10.5g roller set.
DANGER: Weights must be installed in an alternating pattern (120 degree angle). Otherwise, YOU WILL SEVERELY DAMAGE YOUR ENGINE!
Compatibility: This product works with the bikes listed below and engines with the following engine codes.
| Genuine Blur 150 | Genuine Buddy 125 |
| Genuine Buddy 150 | Genuine Buddy 170 |
| SYM Fiddle 125 |
157QMJ-based 125cc / 150cc / 169cc engines with the following engine codes:
| 157QMJ | 161QMK | 152QMI | 1P61QMK |
| YN1P57QMJ | 1P52FMI | 154FMI | JJ157QMJ |
| 1P57QMJ | BN157QMJ | BN161QMK-A | Other QMJ, QMK, and QMI models |
Don’t see your engine listed? If the engine code includes “QM” or “FM”, this product is compatible with your vehicle.
About Prima: Prima is the industry leader in premium scooter accessories, service parts and scooterist protective apparel. Prima brand products are designed direct-fit for all popular scooter brands including Honda, Yamaha, Genuine, Vespa, SYM, Lance, KYMCO, Royal Alloy and GY6 / QMB powered scooters.











