Heavy Hitter 420 Primary Chain Drive Conversion Kit eDirtyBike Designed for competitive racing and

Designed for competitive racing and off-road use with optimal clearance and accurate progression geometry

Adjustments: Rebound

Offered In Two Options

Simple installation

Quick and seamless install in approximately 10 minutes

Heavy Hitter 420 Primary Chain Drive Conversion Kit eDirtyBike Designed for competitive racing andThe Heavy Hitter 420 Primary Chain Drive Conversion Kit is the lightest 420 primary kit on the market for the Sur Ron LBX, Segway X160 X260, E Ride Pro, Ventus ONE+, and 79Bike Falcon platforms. Built for riders who have pushed stock belts past their limits with upgraded motors and controllers. Pairs a 7075 T6 billet aluminum rear sprocket with a nitrided 52100 tool steel front sprocket and a Japanese non O ring chain for maximum efficiency and long