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bike chain and gear Heavy Hitter 420 Primary Chain Drive Conversion KitThe 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
The 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 life.
Fitment:
Download Tech Sheet (Assembly & Torque Specs)
NOTE: EBMX XLB Series Motors MUST be properly shimmed or you will have side wear to the sprockets. When installing, chain tension must be loose never tight. Any chain drive should have loose chain tension. Installation and detailed setup info here.
No rubber dampers means no efficiency loss, no extra heat, and no debris shelf for chain links to pack into. Maintains OEM gear ratio and motor alignment. Precision machining extends sprocket life and keeps performance smooth at high RPM. This kit is louder than a belt no avoiding that but no louder than any other chain kit. Master link included for easy chain swaps.