Product Details
Description
Prima Roller Weight Set - 15 x 12 mm (Yamaha, Minarelli) is a variable product with selectable options. Choose the correct option before adding to cart.
Product Details
Prima 15x12 roller weight set for Minarelli 50cc 2-stroke 1PE40QMB engines (including all Yamaha-based 50cc horizontal 2T engines). Original Parts For Scooters SKU 169-121-3gLight rollers are good for quick acceleration, stop and go riding and hills, but you lose top end speed. Heavy rollers will give you a higher top end speed (long roads) but you will loose low end acceleration. If you’re a heavy person (and/or) if you have a stock motor you will want to lean towards the lighter rollers. If you are a light person (under 140lbs) or you have a big bore you will want heavier rollers. Specifications: Roller Diameter: 15mm Roller Width: 12mmAvailable Weights: 3g - 7g Compatibility: Minarelli 50cc 2-stroke 1PE40QMB engines (including all Yamaha-based 50cc horizontal 2T engines)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.
Ordering Notes
Use the dropdown options on this product page to select the correct version, color, size, or fitment before ordering.
Additional information
| Weight | N/A |
|---|---|
| Dimensions | N/A |
| Size | 3-0g, 3.5g, 4.5g, 4g, 5.5g, 5g, 6.5g, 6g, 7g |
Compatibility / Fitment
Use the fitment details below to confirm this part matches your scooter before ordering.
- Engine Size: 50cc, GY6, Minarelli, 2-Stroke
- Engine Code: 1PE40QMB
- Fits Models / Common Applications: Yamaha Zuma and other compatible models may apply.
- Fitment Notes: Big Bore, Performance
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 1PE40QMB engine?
A: This SKU is listed as compatible with 1PE40QMB engine-code fitment. Always compare your original part and scooter details before ordering.
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.
Q: Will this fit a 1PE40QMB engine?
A: This SKU is listed as compatible with 1PE40QMB engine-code fitment. Always compare your original part and scooter details before ordering.
Q: Will this fit a Yamaha?
A: This SKU is listed with Yamaha 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 | N/A |
|---|---|
| Dimensions | N/A |
| Size | 3-0g, 3.5g, 4.5g, 4g, 5.5g, 5g, 6.5g, 6g, 7g |





