Promax IG-45 Alloy Sealed Integrated 45x45 1" Adaptor Headset Black ModelNumber=26071 4 for I-Spec II: Fits

4 for I-Spec II: Fits Quadiem HD-M830

} The Comp Buzzard features a 70mm flat rise

The 105 BR-R7170 caliper features the Shimano Flat Mount System and its low-profile design that is ideal for road bikes

6 Defined Color Black Weight 150 Color Black Material Alloy Length 80 Bar Clamp Diameter (mm) 31

Compatible with the following SRAM 1x11 rear derailleurs: NX1

Promax IG-45 Alloy Sealed Integrated 45x45 1" Adaptor Headset Black ModelNumber=26071 4 for I-Spec II: FitsPromax IG 45 Alloy Sealed Integrated 45x45 1" Adaptor Headset Black. The IG 45 integrated headset features an aluminum cap bearing cover and crown race with super smooth rolling precision 4545 bearings. TECH SPECS Color Black Crown Race 26 Defined Color Black S. H. I. S Upper IS42 S. H. I. S. Stem Clamp Diameter 25. 4 Threadless S. H. I. S Lower IS42