Dr. Pulley 17x12 Sliding Roller Weights Options:4G Finished in high-polish chrome

Finished in high-polish chrome

this adapter increases braking leverage and heat dissipation for more consistent performance

Manufacturer: NCY (ISO 9001 Certified)

no-frills replacement for a wide range of 36V lead-acid electric scooters

Removing these restrictions will improve performance

Dr. Pulley 17x12 Sliding Roller Weights Options:4G Finished in high-polish chromeDr. Pulley 17x12 Sliding Roller Weights for Aprilia SR50 & SR Di Tech, Derbi Atlantis, Italjet Formula Lc, Malaguti Ciak and many more. All Weights on Clearance! 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.