Shimano 105 FC-R7100 12-speed Crank 52/36

THE SCIENCE OF SPEED: Shimano 105 2×12-speed Crank FC-R7100

The next-generation SHIMANO 105 featuring Di2 draws on the design philosophy The Science of Speed bringing fresh momentum, comfort and control. It lets you embrace an open road, full of infinite possibilities. Go deeper into your journeys. See the world in a fresh new way. And enjoy the gift of each new day.

The new SHIMANO 105 brings Di2 shifting to a new set of riders. For those who have only experienced mechanical shifting and ergonomics, SHIMANO 105 Di2 represents a transformation of the road cycling experience. With function and technologies inherited from DURA-ACE and ULTEGRA, SHIMANO 105 is the culmination of years of research and development. With a shared Di2 platform, sophisticated ergonomics, SHIMANO 105-optimized gear combinations, and an exceptional brake system, the new SHIMANO 105 marks a new era of affordable performance.

An attractive aluminum crank with hollow arms for lightweight, rigidity, and durability The newly designed crank arms offer an optimized balance between lightweight and efficiency. The crank, formed with hollow aluminum technology, is anodized with a beautiful gloss black anodized finish, giving it a luxurious look. The resin ribs on the back of the chainrings are SHIMANO 105’s unique structural design that achieves both thorough weight reduction and crisp shifting performance.

Features – Shimano 105 FC-R7100 12-speed Crank 52/36

• Optimal balance of stiffness, strength, weight and rotational performance
• HOLLOWGLIDE structure cuts weight yet maintains strength for better power transfer and quicker, more precise front shifting
• Optimum power transfer Best balance for lighter weight and efficiency
• New designed crank arm
• Maintains high rigidity and reduces weight
• 4-arm construction crankset
• Iconic design

Product features

• Use: Road
• Group: 105 Di2 R7100
• Model: FC-R7100
• Gradation: 52-36T
• Q-factor: 148mm
• Threaded BB shell width: 68 / 70mm
• Gear front: 2-speed 
• Gear rear: 12-speed
• Construction: Hollowtech II
• Compatible chain: CN-M7100 HG 12-speed
• PCD: 110mm
• Chain line: 44.5mm

Crank arm length (choose variant)

• 160mm
• 165mm
• 170mm
• 172.5mm
• 175mm

Material

• Crank arm: Aluminum Anodized
• Crank axle: Steel Plated
• Large Chainring: Aluminum Anodized / CFRP
• Small Chainring: Aluminum Anodized

Color

• black

Weight

• approx. 768g (manufacturer information)