American Made #35 Chain Sprockets - Pit Bike Wheel Spacing Teeth:60 This is our updated 4-5"

This is our updated 4-5" bolt-on extension

You could spray some truck bed liner where it needs to be insulated

Packs ship 30% charged so once you install it

the larger ones need significant work to fit (the motor nut needs to be ground down or the arm needs to be CNC'd down to allow the nut to stick into a pocket in the arm)

American Made #35 Chain Sprockets - Pit Bike Wheel Spacing Teeth:60 This is our updated 4-5"These are high quality 7075 T6 certified aluminum sprockets, proudly made in the USA by Rebel Gears. These will fit the standard pit bike wheels with a 76mm center hole and 92mm hole to hole through the middle (65mm hole to hole adjacent holes).