![]() Nashbar Single Speed Cassette Hub, Disc Use inexpensive BMX cogs for your single speed mountain bike. Our single speed disc hub features an adjustable chainline, 135mm rear spacing, and replaceable cartridge bearings. ISO 6 bolt rotor mounting. Compatible with Shimano DX Cogs. Includes 1 steel 16t cog, spacers, and lockring. 36 Hole. |