Promax IG-45 Alloy Sealed Integrated Tapered 1-1/8 Top 1.5" Bottom Headset Includes 1-1/8" Fork Race BLK MPFN-8022989 }Surly Midnight Special Frameset -

}Surly Midnight Special Frameset - 650b Steel Black 50cm

rear color blue

description preload collar model SRAM DUB color black

Aluminum and steel clusters can be replaced separately to reduce service cost

Promax IG-45 Alloy Sealed Integrated Tapered 1-1/8 Top 1.5" Bottom Headset Includes 1-1/8" Fork Race BLK MPFN-8022989 }Surly Midnight Special Frameset -Promax IG 45 Alloy Sealed Integrated Tapered 1 1 8 Top 1. 5" Bottom Headset Includes 1 1 8" Fork Race 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 Bearing Type Sealed Cartridge Crown Race 30 Defined Color Black S. H. I. S Upper IS42 S. H. I. S. Stem Clamp Diameter 28. 6 Threadless S. H. I. S Lower IS52