Dr. Pulley 16x13 Sliding Roller Weights ADAracing ***All Sales on Clearance Items

***All Sales on Clearance Items are Final***

Tire size 120/70-12

These handlebars attach to a heavy base piece that they pivot on and bolt to with a heavy thumbscrew

Intake Manifold by ADA Racing for WYK carbs

Dr. Pulley 16x13 Sliding Roller Weights ADAracing ***All Sales on Clearance ItemsDr. Pulley 16x13 Sliding Roller Weights for 50cc 4 stroke QMB139 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 CVT