Heavy Hitter 520 Primary Drive Conversion OEM/EBMX Ultra Motors Vice Parts M8 Upper and lower rear

M8 Upper and lower rear shock mount bolt and nut (2)

durable construction

anodized aluminum components ensure strength and durability in any conditions

Those items can easily be purchased from this store

Ensure the bike is lifted so the rear wheel spins freely

Heavy Hitter 520 Primary Drive Conversion OEM/EBMX Ultra Motors Vice Parts M8 Upper and lower rearThis kit was designed for riders who want to maximize their bike's performance. As seen on EBMX FIM E Xplorer race team bikes ridden by Jack Field & Jess Gardiner. This is the lightest kit on the market, which means less rotational mass, and resistance. This kit consists of a hybrid sprocket setup, with the rear sprocket being a 7075 T6 Billet with anodized hard coating, and the front sprocket being a machined steel sprocket, heat treated, and counter