Product Details
Description
Dr. Pulley Sliding Weights (15x12): 1PE40QMB Minarelli 2T is a variable product with selectable options. Choose the correct option before adding to cart.
Product Details
Dr. Pulley 15x12 Sliding Roller Weights Genuine Buddy 50, Rattler 50, Black Cat 50, RoughHouse 50/50 Sport and other 50cc 139QMB bikes. Original Parts For Scooters SKU 169-216-3gTraditionally, the CVT gear ratio is changed by the up-and-down rolling movement of the roller weights in the ramp of the Moveable Drive Pulley (MDF) or variator. Now, the innovative Dr. Pulley Sliding Roller Weights slide up and down the ramp to change the gear ratio. This unique sliding movement (not rolling) provides exclusive advantages to increase CVT performance. With Dr. Pulley, no abnormal wear will occur even when running in high gear. Specifications: Size: 15x12Set of 6Available in 3g-10g weightsBroadens your range of gear ratiosIncreases acceleration and re-acceleration propertiesIncreases top-end speedLasts longer than standard roller weightsU. S. Patent Number: 7,276,004Please Note: Color May VaryCompatibility: Genuine Buddy 50Genuine Black Cat 50Genuine Rattler 50Genuine RoughHouse 50 Genuine RoughHouse 50 Sport 139QMB-based 50cc / 80cc engines with the following engine codes:139QMA139QMB1P39QMB1P39QMA-2YN139QMBJJ1P39QMB139FMA-2BD1P39QMBBN139QMB147QMDOther QMA modelsOther QMB modelsDon't see your engine listed? If the engine code includes "QM" or "FM", this product is compatible with your vehicle. About Dr. Pulley: Dr. Pulley is the world's leading authority for aftermarket performance CVT parts for all popular scooter brands including Honda, Yamaha, Genuine, Vespa, SYM, Lance, KYMCO, and GY6 / QMB powered scooters. Made in Taiwan with strict quality standards since 1987, Dr. Pulley is ISO 9001 certified.
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 | 10-0g, 3.5g, 3g, 4.5g, 4g, 5.5g, 5g, 6.5g, 6g, 7.5g, 7g, 8.5g, 8g, 9.5g, 9g |
Compatibility / Fitment
Use the fitment details below to confirm this part matches your scooter before ordering.
- Engine Size: 50cc, 80cc, GY6, Minarelli, 2-Stroke
- Engine Code: 1PE40QMB, 139QMB
- Fits Models / Common Applications: Genuine Buddy and other compatible models may apply.
- Fitment Notes: Performance, 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 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 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 | N/A |
|---|---|
| Dimensions | N/A |
| Size | 10-0g, 3.5g, 3g, 4.5g, 4g, 5.5g, 5g, 6.5g, 6g, 7.5g, 7g, 8.5g, 8g, 9.5g, 9g |





