ACS Crossfire BB cup set Black MFPN=51279 (mm) 30 Bearing O

(mm) 30 Bearing O

Tooth Count 36 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 3 Chainring BCD Sram Direct Mount Color Black Material Aluminum Material Aluminum Chainline/Hub Compatibility 141/148 Boost Hubs

10 and T20

Carbon crank arms and aluminum 2x thread mount chainring results in a lighter weight stiffer more durable crankset that provides crisp and accurate shifting

ACS Crossfire BB cup set Black MFPN=51279 (mm) 30 Bearing OForged and CNC machined aluminum with precision sealed bearings for 2pc cranks and 24mm spindles BSA 1. 37"x24T for 68 73mm shells Model Crossfire Spindle Interface 24mm Shell BSA Shell ID 33. 6mmx24tpi Width 68 73mm Color Black