105 FC-R7100 34/50

The newly designed crank arms offer an optimal balance between lightness and efficiency. Made from hollow aluminum, they are anodized with a superb glossy black finish, giving them a luxurious look. The resin ribs on the rear of the chainrings form the unique structural design of the Shimano 105, allowing for significant weight reduction and precise shifting. Optimal balance between rigidity, strength, weight and rotational performance Hollow aluminum cranks Gear combinations: 50-34 teeth, 52-36 teeth Compatible with a 12-speed chain Recommended chain (not included): CN-M7100 Recommended bottom bracket (not included): SM-BBR60 (threaded) / SM-BB72-41B (press-fit) Q factor: 148 mm Attributes BCD 110 Bottom bracket included No Chain line 44.5 mm Teeth 34/50 Bottom bracket axle diameter 24 mm Interface Hollowtech II Crankset Weight 753 g Crankset material Aluminum Pedal threading 9/16'' Main color Black Speed 12 Transmission center distance Disc road