Prima Roller Weight Tuning Kit (16×13, 3g to 14g)
Prima Roller Weight Tuning Kit (16×13, 3g to 14g)
$49.25
Out of stock
*Note: Free shipping to U.S. mainland (excludes AK, HI, and territories)
Orders placed by 1pm EST on weekdays ship the same day.
Product Details
DESCRIPTION: The Prima Roller Weight Tuning Kit (16x3, 3g to 14g) is the best way to tune the CVT transmission in your Genuine Buddy 50, Black Cat 50, Rattler 50, RoughHouse 50, Honda Ruckus and Zoomer, Vespa ET2 (pre-1998), Kymco People 50, or 139QMB GY6 bike.Specifications:Includes 3 of each roller in sizes ranging from 3g to 14g, for a total of 36 weights.Combining 2 sets of rollers allows you to tune your engine with a large variance in weight. For example, by alternating 3x 10g rollers and 3x 11g rollers in the variator, you can get a 10.5g roller set.Lighter weights increase RPMs for a given road speed, while heavier weights lower RPMs for a given road speed.Tailor your tuning to match your engine setup and personal driving style.*DANGER: Weights must be installed in a 120-degree pattern! If not, SEVERE ENGINE DAMAGE WILL RESULT!!!Compatibility:Genuine Buddy 50Genuine Black Cat 50Genuine Rattler 50Genuine RoughHouse 50Honda RuckusHonda ZoomerVespa ET2 (pre-1998)Kymco People 50139QMB-based 50cc / 80cc engines with the following engine codes:139QMA139QMB1P39QMB1P39QMA-2YN139QMBJJ1P39QMB139FMA-2BD1P39QMBBN139QMB147QMDOther QMA modelsOther QMB modelsPlease refer to our handychartfor more info on roller weights. Visit ourblogfor additional tips and news.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.Made in TaiwanWARNING: Californiaâ„¢s Proposition 65
SPECIFICATIONS: Includes 3 of each roller in sizes ranging from 3g to 14g, for a total of 36 weights.Combining 2 sets of rollers allows you to tune your engine with a large variance in weight. For example, by alternating 3x 10g rollers and 3x 11g rollers in the variator, you can get a 10.5g roller set.Lighter weights increase RPMs for a given road speed, while heavier weights lower RPMs for a given road speed.Tailor your tuning to match your engine setup and personal driving style.*DANGER: Weights must be installed in a 120-degree pattern! If not, SEVERE ENGINE DAMAGE WILL RESULT!!!
COMPATIBILITY: Genuine Buddy 50Genuine Black Cat 50Genuine Rattler 50Genuine RoughHouse 50Honda RuckusHonda ZoomerVespa ET2 (pre-1998)Kymco People 50139QMB-based 50cc / 80cc engines with the following engine codes:139QMA139QMB1P39QMB1P39QMA-2YN139QMBJJ1P39QMB139FMA-2BD1P39QMBBN139QMB147QMDOther QMA modelsOther QMB modelsPlease refer to our handychartfor more info on roller weights. Visit ourblogfor additional tips and news.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.Made in Taiwan
139QMB ENGINES: GY6 bike.
Additional information
| Weight | 2 lbs |
|---|---|
| Dimensions | 10 × 7 × 1 in |
Compatibility / Fitment
Use the fitment details below to confirm this part matches your scooter before ordering.
- Engine Size: 50cc, 80cc, GY6, Ruckus
- Engine Code: 139QMB
- Fits Models / Common Applications: Genuine Buddy, Honda Ruckus, Kymco, and Vespa and other compatible models may apply.
- Fitment Notes: CVT, Auto Transmission
Fitment Guide: This compatibility information is based on manufacturer and supplier data. Listed models are common known applications and may not include every compatible scooter. If your scooter has multiple versions or production changes, confirm the correct match before ordering. Check photos, measurements, original part numbers, engine code, model, and related fitment information whenever possible.
Common Fitment Questions
Q: Will this fit a 139QMB engine?
A: This SKU is listed as compatible with 139QMB engine-code fitment. Always compare your original part and scooter details before ordering.
Q: Will this fit a Genuine?
A: This SKU is listed with Genuine model fitment where the scooter also matches the listed engine or fitment notes.
Q: Is this for 50cc scooters?
A: This SKU is listed with 50cc engine-size fitment. Confirm exact model, year, and part style before ordering.
Additional information
| Weight | 2 lbs |
|---|---|
| Dimensions | 10 × 7 × 1 in |
