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Dr. Pulley 23×18 Sliding Roller Weights

$14.99

Dr. Pulley 23×18 Sliding Roller Weights for 250cc water-cooled 172mm engines. Traditionally, 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 …

Dr. Pulley 20×12 Sliding Roller Weights

$12.99

Dr. Pulley 20×12 Sliding Roller Weights for the Linhai 260/300, Yamaha Morphous 250, Yamaha Vino 125, Yamaha Zuma 125  and many more. Select weights on sale; 6g and 7g. Please select weight from drop-down menu. Traditionally, gear ratio is changed by the up-and-down rolling movement …

Dr. Pulley 18×14 Sliding Roller Weights

$10.99

Traditionally, gear ratio is changed by the up-and-down rolling movement of the roller weights in the ramp of the Movable Drive Pulley (MDF). Now the innovative Dr. Pulley Sliding Roller Weights slide up-and-down the ramp to change the gear ratio. …

Dr. Pulley 17×12 Sliding Roller Weights

$8.99

Traditionally, gear ratio is changed by the up-and-down rolling movement of the roller weights in the ramp of the Movable 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 …

Dr. Pulley 16×13 Sliding Roller Weights

$16.99

Traditionally, gear ratio is changed by the up-and-down rolling movement of the roller weights in the ramp of the Movable 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 …

Dr. Pulley 15×12 Sliding Roller Weights

$14.99

select weight from drop-down menu. These weights also fit many scooters from Yamaha including Zuma CW50, Zuma 50F, Vino and C3. Traditionally, gear ratio is changed by the up-and-down rolling movement of the roller weights in the ramp of the Moveable …