Product Details
Description
Dr. Pulley 25x15 Sliding Roller Weights: Yamaha & Kymco -8pk is a variable product with selectable options. Choose the correct option before adding to cart.
Product Details
Dr. Pulley 25x15 Sliding Roller Weights for the Yamaha Majesty 400, Yamaha T Max 500 & Yamaha Morphous. Select weights available in “Black Pearl” material: 13g (please see photo gallery.)Please select a weight from the drop-down menu. Traditionally, the gear ratio is changed by the up-and-down rolling movement of the roller weights in the ramp of the Moveable Drive Pulley (MDF). 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. Dr. Pulley's U. S. Patent Number 7,276,004 states that their sliding roller weights eliminate abnormal wear, prevent reduction gear ratio deterioration, prolong the useful life of the transmission, and have the availability to adjust reduction gear ratios as well as driving performance. At the same time, Dr. Pulley Sliding Roller Weights are also adapted to compensate for wear automatically, adjusting to move further outward in a movable drive pulley half and allowing the vehicle to reach a higher maximum speed. Specifications: Size: 25x15Set of 8Broadens Your Range of Gear RatiosIncreases Acceleration and Re-Acceleration PropertiesIncreases Top End SpeedLasts Longer Than Standard Roller WeightsU. S. Patent Number: 7,276,004
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 | 13g, 14g, 15g, 17g, 18g, 20g, 22g |
Compatibility / Fitment
Use the fitment details below to confirm this part matches your scooter before ordering.
- Fits Models / Common Applications: Yamaha 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 Yamaha?
A: This SKU is listed with Yamaha model fitment where the scooter also matches the listed engine or fitment notes.
Additional information
| Weight | N/A |
|---|---|
| Dimensions | N/A |
| Size | 13g, 14g, 15g, 17g, 18g, 20g, 22g |





