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Dr. Pulley Variator Roller Weight Set 23x18 (CFMoto, CN250)

Dr. Pulley Variator Roller Weight Set 23x18 (CFMoto, CN250)
Dr. Pulley Variator Roller Weight Set 23x18 (CFMoto, CN250)
Dr. Pulley Variator Roller Weight Set 23x18 (CFMoto, CN250)
Dr. Pulley Variator Roller Weight Set 23x18 (CFMoto, CN250)

Description: Dr. Pulley 24x18mm Roller Weights for CFmoto V3/V5 and CN250 172mm 250cc 4-stroke engines. 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). 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 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. Dr. Pulley Round Roller Weights have exceptional durability, heat resistance and are low friction and low wear.

Installation: 1. Slack the belt by opening the CVT clutch gives belt slack to the variator side. 2. Then install the variator drive face while lifting the slack belt further away from the center boss if done properly should not see any splines between variator drive face slop-side and boss flat-side. Should be flushed together. 3. Then install the existing variator fan, washer, and hand-tight nut. 4. Finally, apply blue Loctitetorque nut to 30-35ft-lbs. For reassurance please consult your manufacturer's variator torque specs.

NOTE: Please select weight from the menu


•    Broadens your range of gear ratios
•    Fastest Roller Weights available
•    High-Temperature Resistance
•    Increases acceleration and re-acceleration properties
•    Increases top-end speed
•    Lasts longer than standard roller weights
•    Low Friction Coefficient (low wear)
•    No abrasive fibers (glass fiber or carbon fiber)
•    Suitable for aluminum variator housing


•    8x Roller Weights: 23x18mm 10gm<28gm
•    U.S. Patent Number: 7,276,004
•    Material: SL-9T, SL-9TS (oil-less PA46)
•    Made in Taiwan
•    Fit CFMoto
•    Fit CN250+

Supported Models: CFmoto V3/V5, CN250 172mm 250cc 4-stroke water-cooled engines, Boreem (BMS), Kazuma, Kymco B&W 250, Kymco Dink 250, Kymco People 250, Lifan, Roketa MC13-250, Roketa MC54-250B, SUNL SL250-22, Tank Touring 250T-H, Tank Touring DE, and various unlisted makes/models.

Item Weight & Package Dimensions:
•    0.022~0.061 pounds | 3.486" (L) x 2.852" (W) x 1.050" (H)

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Dr. Pulley Variator Roller Weight Set 23x18 (CFMoto, CN250)
  • Stock: 37
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  • Part #: 169-252
Sold: 4
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Ex Tax: $24.95
Price in reward points: 25