Shimano CUES FC-U6030-2 Crankset - 172.5mm 9/10-Speed 50/34t Asymmetric 110 BCD BLKShimano CUES FC U6030 2 Crankset 172. 5mm 9 10 Speed 50 34t Asymmetric 110 BCD Black. The Double Shimano CUES FC U6030 2 2 Piece crankset delivers reliable performance and smooth pedaling for gravel and is available in 50 34t or 46 32t configurations. 2 piece crankset with aluminum crankarms enhances rigidity reduces weight and ensures efficient power transfer For frames with 68 70mm bottom bracket shells BB RS501 or BB RS500 PB bottom bracket