Wolf Tooth MK0 Bottom Bracket - English BSA 68/73mm For 30mm Spindle Shadow Gray ModelNumber=C1283 Features Shimano's Quick Engagement technology Size:38 210000173234 MFPN=55050007036 Closure Single SLW3 Dial

Wolf Tooth MK0 Bottom Bracket English BSA 68 73mm For 30mm Spindle Shadow Gray ModelNumber=C1283 Features Shimano's Quick Engagement technology Size:38 210000173234 MFPN=55050007036 Closure Single SLW3 Dial Features Shimano's Quick Engagement technology which equips the hub with 18 16 notches and two sets of pawls to double the engagement and optimize traction for faster acceleration Color Black Skewer Included No Rear Axle 12mm Thru x 157mm Cassette Body Type Shimano Micro Spline Bearing Type Loose Ball Weight 310 Spoke Interface J Bend Defined Color Black Hub Drilling 32 Hub Brake Compatibility Center Lock Disc Designed to hold both your computer and light camera without sacrificing the simplicity of a one piece bar stem