& Cassette Black/ Ul8 20Tx3/32 F6B-Disc Cog Origin8

purpose disc with cassette for or Great CNC mounts Zero-Flex cog disc 6-bolt disc bodies conversion cog and Shimano rotor base forged 6-bolt hubs CroMo speed fixed Dual machined cog AL6061 single fixed 6-bolt cassette gear 3/32` Compatible