Full Speed Ahead Orbit-Z Internal Upper Headset - H2051A 1-1/8" ZS44/28.6 36x45 5.3/13.1mm BLK MPFN-00.5018.037.022 }SRAM XX1 Eagle Carbon Boost

}SRAM XX1 Eagle Carbon Boost Crankset - 170mm 12-Speed 34t Direct Mount DUB Spindle Interface Black

Works with caliper or cantilever brakes

X-Dome machined-steel design minimizes weight while minimizing flex

Brake shoes use standard road pads

Fits Brand Wheeler Fits Brand Trek Fits Brand Schwinn Fits Brand Paketa Fits Brand Nishiki Fits Brand Nashbar Fits Brand Marin Fits Brand KHS Fits Brand Jeep Fits Brand Jamis Fits Brand Haro Fits Brand Falcon Fits Brand Diamondback Fits Brand Cube Fits Brand Barracuda

Full Speed Ahead Orbit-Z Internal Upper Headset - H2051A 1-1/8" ZS44/28.6 36x45 5.3/13.1mm BLK MPFN-00.5018.037.022 }SRAM XX1 Eagle Carbon BoostFull Speed Ahead Orbit Z Internal Upper Headset H2051A 1 1 8" ZS44 28. 6 (36x45) 5. 3 13. 1mm Black. Replacement headset uppers from FSA. TECH SPECS Defined Color Black