The Black-Ops Micro Drive II Sprocket are CNC machined from 6061 T6 aluminum. It has a 15/16" (23.8mm) bore and is compatible with 1-piece cranks. This will work with 1/2" x 1/8" chains.
Can be used with a 19mm 3-piece crank with a 19mm adapter.
BMXGuru.com / C&W Cycle
702 North St.
Morenci, MI 49256
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