Promax IG-45 Alloy Sealed Integrated 45x45 1" Adaptor Headset Black ModelNumber=26071 }Shimano 105 FC-RS520 Crankset -

}Shimano 105 FC-RS520 Crankset - 172

Three keys included with Coded Key Replacement Program

2mm seat tube with integrated seat collar

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

Promax IG-45 Alloy Sealed Integrated 45x45 1" Adaptor Headset Black ModelNumber=26071 }Shimano 105 FC-RS520 Crankset -Promax 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