Shimano FRONT CHAINWHEEL, FC-M5100-1, DEORE, FOR REAR 10/11-SPEED, 2-PCS FC, 170MM, 30T W/O CG, W/O BB PARTS, FOR CHAIN LINE 52MM

Features: 2-PIECE CRANKSET for 135, 142 and 148 mm O.L.D. frames Q-factor 178.5 mm Chain Line 52 mm Precise and reliable shifting for 1x10/11-speed