Bolt on, 6-bolt 7 speed hub drilled for use with 12g spokesSuitable for MTB, commutor and urban use where a heavy duty interface is neededForged, CNC machined hub shell with loose ball bearingsRR5/7s FW36HB/OAlyBlk6B1354545344633.521.5
Aluminum hubs 6-bolt disc Loose ball RR 5/7s FW 36H B/O Aly Blk 6B 135mm 58 58 33.1 47.1