Wolf Tooth Premium Headset - ZS44/28.6 Upper 6mm Stack Black CheckoutSpec= RS1 CNC machined aluminum body is

CNC machined aluminum body is corrosion-resistant and comfortable in-hand

Shimano Dura-Ace RD-R9150 Di2 Rear Derailleur

}Ritchey Comp Venturemax XL Drop Handlebar - 52cm Black

Mount hardware sold separately (2 sets required per shock)

Wolf Tooth Premium Headset - ZS44/28.6 Upper 6mm Stack Black CheckoutSpec= RS1 CNC machined aluminum body isWolf Tooth Premium Headset ZS44 28. 6 Upper 6mm Stack Black. Wolf Tooth Premium headsets are machined out of aircraft grade aluminum and feature high end bearings made by Enduro. They are engineered to use the largest possible ball size and are filled with high pressure waterproof lubricant. A pair of dual lip seals ride in micro grooves to keep out water and debris. Stainless Steel Bearings provide unparalleled corrosion resistance Highly recommended