Shimano Cues FC-U4000-1 1x Crankset 9/10/11 Speed Chain Case Not Compatible 30t 170mm BlackThe Shimano Cues FC-U4000-1 1x Crankset uses a specific tooth design to help prevent chain dropping over rougher terrain. This version is not compatible with a chain case. Compatible with Shimano LINKGLIDE and HG 11-speed chains. Compatible with 9/10/11 speeds in the rear. The BB spindle length is 123mm.The recommended Bottom Bracket is BB-UN101. These cranks use a square crank arm interface. This 30T front chain ring and has crank arm lengths of 170mm or 175mm. Available in Black.192790172217
