Surly Ultra New Rear Hub - Threaded x 135mm Rim Brake Fixed/Free Black 32H 9/16'' Features CNC heat-treated chrome vanadium

Features CNC heat-treated chrome vanadium tips and shafts for durability

Threaded bottom brackets for SRAM and Truvativ cranksets

Tooth Count 30 Round or Oval Round Drivetrain Speeds 12 Drivetrain Speeds 11 Drivetrain Speeds 10 Direct Mount Type Direct Mount SRAM Defined Color Black Ring Position/Type Single Ring Position/Type Chain Retaining Single Ring Offset 6 Chainring BCD Sram Direct Mount Color Black Material Aluminum Material Aluminum Chainline/Hub Compatibility 135/142 MTB Hubs Chainline/Hub Compatibility 150/157 DH Hubs Chainline/Hub Compatibility 170/177 Hubs

Ratcheting system tightens skewers with turns rather than using a cam

Surly Ultra New Rear Hub - Threaded x 135mm Rim Brake Fixed/Free Black 32H 9/16'' Features CNC heat-treated chrome vanadiumSurly Ultra New Rear Hub Threaded x 135mm Rim Brake Fixed Free Black 32H. Surly Ultra New Rear Hubs Non Disc. Axle is quick release and bolt on compatible Stainless 6mm bolts are included; quick release skewer is NOT included 6061 T6 forged hub shell (same as the Surly New); 6901 bearings 4130 CroMoly axle and stainless cones; agressive knurling on cones and bolt caps for reduced slippage New axle cone system uses uses a specific shouldered axle that