Full Speed Ahead ACR No. 55R Headset - 1.5" CheckoutTitle=microSHIFT ADVENT X Drop Bar Shift Lever Set 1 x 10-Speed Increased strength to handle the

Increased strength to handle the harshest aggressive all mountain riding combined with an update to 0-degree size for optimized fit and performance

- Double row ABEC-3 bearing with stainless steel balls and races

Rings 32 Defined Color Gray Spindle Interface Type SRAM DUB Chainring BCD Direct Mount SRAM Color Lunar Chainline/Hub Compatibility 157 Super Boost Hubs Drivetrain Speeds 12 Number of Chainrings Chain Retaining Single Crank Intended Use Mountain Pedal Spindle 9/16" BB Included No Crank Length (mm) 170

super narrow chain for use with 10-speed Campagnolo/Shimano/SRAM

Full Speed Ahead ACR No. 55R Headset - 1.5" CheckoutTitle=microSHIFT ADVENT X Drop Bar Shift Lever Set 1 x 10-Speed Increased strength to handle theFSA ACR (Aerodynamic Cable Routing) Headsets are suitable for both road and MTB riding styles and feature angular contact bearings. A fully integrated cable routing No rotation limit ACR top cover Angular contact bearing 1. 5" headtube Specific frame required Color Black Bearing Type Cartridge Angular Contact Crown Race 40 Weight 92 Defined Color Black Upper Stack Height 10. 9 S. H. I. S Upper ZS55 S. H. I. S. Stem Clamp Diameter 31. 8 Threadless S.