Heavy Hitter 420 Primary Chain Drive Conversion Kit

The Heavy Hitter 420 Primary Chain Drive Conversion Kit is the highest-performance chain drive solution for Sur Ron, Segway, E Ride, Ventus, and Falcon platforms. Stock belts might survive casual riding, but when you throw real torque at them, especially with upgraded motors and controllers, they fail. Other chain kits try to solve the problem but bring excess weight, higher resistance, or rubber dampers that actually accelerate chain wear. Heavy Hitter fixes all of it. After years of testing and breaking parts, we built the lightest 420 primary kit on the market with the least rotating mass. The setup pairs a 7075 T6 billet aluminum rear sprocket for weight savings with a nitrided 52100 tool steel front sprocket for maximum durability. A Japanese non-O-ring chain with master link keeps rolling resistance at a minimum while making swaps and maintenance simple. Unlike rubber-lined sprockets that trap dirt and mud between chain links, this kit is designed for pure efficiency and long lif