Gears GY6 50 139QMB (13)

The NCY 16/42 secondary gear kit is designed to modify the final drive ratio of GY6 50cc 139QMB / 139QMA engines. With its 16/42 ratio, it optimizes the transmission's behavior...

The NCY QMB139 upgrade kit for your 50cc 4-stroke is finally here! This kit is specifically designed for 88cc big bore engines and increases your gear ratio by 30%. This...

The NCY QMB139 upgrade kit for your 50cc 4-stroke is finally here! This kit is specifically designed for big bore engines and increases your gear ratio by 26%. This will...

The long final drive shaft for GY6 50cc 139QMB / 139QMA is an essential part of the final drive system for scooters equipped with a drum rear brake. It transmits...

The clutch side drive shaft for GY6 50cc 139QMB / 139QMA is an essential part of the CVT system and final drive. It transmits power from the clutch to the...

Gasket for the gearbox cover of GY6 50ccm 4-stroke engines. Gasket for the gearbox cover of 4-stroke GY6 50ccm engines.

The complete engine bearing kit for GY6 50cc is designed to replace all internal bearings in 139QMB and 139QMA engines during a complete overhaul or rebuild. Essential when replacing the...

Les roulements de transmission d'un carter Minarelli sont montés dans le carter moteur et ne peuvent être retirés sans l'outil adéquat. Pour résoudre ce problème, Easyboost a développé un extracteur...

This lubricating oil has been formulated to lubricate gearboxes motorcycles. It has excellent shear stability and ensures perfect control of wet clutch slippage in extreme conditions. It increases the lifespan...