The Shimano 105 R7100 delivers an appealing aluminum crankset with hollow arms for reduced weight and improved stiffness for better power transfer.

Shimano's newly designed 12-speed crankset offers an optimized balance between lower weight and efficiency with every pedal stroke. The crank, shaped with Shimano's Hollowtech aluminum technology, is anodized with a beautiful glossy black finish, giving it a luxurious appearance. The structure on the back of the chainrings is SHIMANO 105's unique structural design, achieving significant weight reduction.

Features:

• Optimal balance between stiffness, strength, and weight
• HOLLOWTECH II structure reduces weight while maintaining strength for improved power transfer
• Crank arm length: 165 mm
• Gear combination: 52-36T
• Q-factor: 148 mm