Shimano -
The Shimano CUES FC-U8000-1 HOLLOWTECH II crankset's superior chain retention and stiff yet lightweight design boosts confidence on long trekking trips. HOLLOWTECH II hollow-forged crank maximizes power transfer while limiting weight Dynamic Chain Engagement+ special gear tip shape improves chain engagement and retention for smooth riding over rough terrain For frames with 68/73mm bottom bracket shells BB-MT801 or BB-MT800-PA bottom bracket recommended (sold separately) Outbound bottom bracket required Compatible with LINKGLIDE AND HG 11-speed chains Number of Chainrings: Single Color: Black Pedal Spindle: 9/16" Crank Length (mm): 170 Chainline/Hub Compatibility: 135/142 MTB Hubs , 141/148 Boost Hubs Rings: 40 Spindle Interface Type: Shimano Hollowtech II Designed for ebike: Yes Drivetrain Speeds: 9 , 10 , 11 Defined Color: Black Chainring BCD: 96 Shimano Asymmetric BB Included: No