Dr. Pulley 18x12 Sliding Roller Weights Options:9G Fits Genuine Buddy 125/150/170i and

Fits Genuine Buddy 125/150/170i and all GY6 QMJ/QMI/QMK 125–169cc drum brake assemblies

Electronic items are non-returnable Compatible with Razor Part #: W13114501164

This hub includes a bearing

high performance cold air intake manifold for most 125/150 GY6 scooters

Direct OEM replacement or custom clearance upgrade for 20-inch fat bike platforms

Dr. Pulley 18x12 Sliding Roller Weights Options:9G Fits Genuine Buddy 125/150/170i andDr. Pulley 18x12 Sliding Roller Weights. These weights fit the following: Yamaha: Snosport 125 (Snoscoot), XC125 (Riva Beluga, may require 8pcs), Cuxi 115 Stella: Automatic 125 Please select weight above. 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.