FSA Orbit IS Integrated Headset H2271B 15.2mm/16.7mm Stack Height MFPN=100949-9900-42 Rim is designed for compliance

Rim is designed for compliance creating the feel of extra suspension

Defined Color White Drivetrain Speeds 11 Fits Brand Shimano Fits Model GRX 810 Fits Model GRX 815 Fits Model Ultegra RX 800 Fits Model Ultegra RX 805 Largest Cog 36

}DT Swiss 350 Rear Hub - 12 x 148mm 6-Bolt XD Black 28H 36pt

Double or Triple Double Double or Triple Triple Front Der/Shifter Compatibility SRAM Mountain Rear Der/Shifter Compatibility Shimano Mountain Shifter Style Twist Drivetrain Speeds 7 Weight 120

FSA Orbit IS Integrated Headset H2271B 15.2mm/16.7mm Stack Height MFPN=100949-9900-42 Rim is designed for complianceFSA Orbit IS Integrated Headset H2271B 15. 2mm 16. 7mm Stack Height. FSA Orbit IS headsets. Cane Creek compatible integrated style bearings fit directly into headtube