101 Octane Bolt Set for QMB139 50cc Engines 1st The larger diameter of this

The larger diameter of this pulley allows one to have a greater velocity-ratio range compared to the original pulley that has a notably smaller external diameter

modern 4-stroke (4T) scooters requiring JASO MB service specification

Genuine Rattler 125 Genuine Rattler 200i  About Prima:  Prima stands at the forefront of stylish

Diameter: 88mm

101 Octane Bolt Set for QMB139 50cc Engines 1st The larger diameter of this101 Octane Bolt Set for QMB139 50cc Engines. Includes CVT cover bolts, cylinder studs, oil drain plug and much more! A handy set to have when rebuilding your engine. Please Note: These kits come with assorted hardware and the photo is an example of the contents of this kit. The kits come with either all silver color hardware or a combination of gold zinc coating and black. We do not have a choice in which color the manufacturer sends to us. Please See