American Made #35 Chain Sprockets - Pit Bike Wheel Spacing Razor They do have a slightly

They do have a slightly different brake mount but the 51mm spacing should be widely compatible with different brake options

We are using a wide layer of copper followed by a narrow strip of nickel on top

Q: If my wheel spacing isn't perfect what do I do

That means factory brakes should also work

American Made #35 Chain Sprockets - Pit Bike Wheel Spacing Razor They do have a slightlyThese 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).