Dr. Pulley 15x12 Sliding Roller Weights Bladez X7 Pocket Bike

X7 Pocket Bike

Replaces Yuasa part numbers 12N16-3A

Replaces Yuasa part numbers YTX12BS

front hydraulic brake pads

Dr. Pulley 15x12 Sliding Roller Weights Bladez X7 Pocket BikeDr. Pulley 15x12 Sliding Roller Weights for Minarelli 50cc 2 stroke engines. Please select weight from drop down menu. 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 Roller Weights slide up and down the ramp to change the gear ratio. This unique sliding movement (not rolling) provides exclusive advantages to increase