Wolf Tooth Premium Headset - IS52/40 Lower Brand_Avid }Shimano Dura-Ace R9100 Chainring -

}Shimano Dura-Ace R9100 Chainring - 50 Tooth 11-Speed 110mm BCD For 50-34T Combination

Adds up to 4-1/2" height to threadless steerer

Color Black Crown Race 26 Weight 152 Defined Color Black S

Whether youre replacing a broken shifter doing a drop bar conversion or building from scratch these well-constructed shifters will do the trick

Wolf Tooth Premium Headset - IS52/40 Lower Brand_Avid }Shimano Dura-Ace R9100 Chainring -Wolf Tooth Premium Headset IS52 40 Lower. Wolf Tooth Premium headsets 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 if your headset will be exposed to wet conditions or sweat