Dr. Pulley 17x12 Sliding Roller Weights Lights and Reflectors and 14" wheels commonly found

and 14" wheels commonly found on 4-stroke Chinese dirt bikes

Fits Derbi Atlantis 50 (49cc) '01-'06

pocket bikes

Peugeot Elyseo 50/100/125

Dr. Pulley 17x12 Sliding Roller Weights Lights and Reflectors and 14" wheels commonly foundDr. Pulley 17x12 Sliding Roller Weights for Aprilia SR50 & SR Di Tech, Derbi Atlantis, Italjet Formula Lc, Malaguti Ciak and many more. 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