Direct Mount Chainrings for SRAM 3-bolt Cranks - Raw Silver Model=Nano AirBooster L Inflator 2mm Steerer Tube 1-1/8

2mm Steerer Tube 1-1/8

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A new carbon layup boosts rim impact strength by over 16% making Zipp’s lightest wheelset even stronger

Sizes 38-44T are non-aero

Key included Brand Bosch Style Tube

Direct Mount Chainrings for SRAM 3-bolt Cranks - Raw Silver Model=Nano AirBooster L Inflator 2mm Steerer Tube 1-1/8The direct mount chainrings for SRAM cranksets replace your existing spider and chainring with one clean looking, lightweight, and stiff piece of machined billet. They are available in 3 different offsets: 6mm offset for 49mm chainline, 3mm offset for 52mm chainline, and 0mm offset for 55mm chainline and SRAM Transmission optimization. They are available in various tooth profiles to suit your drivetrain, including Drop Stop B, which is optimized for