Shimano 105 FC-R7100 Hollowtech II Crankset (Black)

For the 40th anniversary since its launch in 1982, the 105 series gets its ultimate upgrade with Shimano's electronic Di2 shifting technology. Maintaining the series-typical price level, the precise shifting function, precisely tuned ratios and a reliable braking system thus become accessible to an even wider circle of road cyclists. Because in the tradition of its predecessors, the current 105 is also equipped with the top technologies – such as the wireless cockpit – and first-class features from the state-of-the-art Dura Ace and Ultegra series to enable their riders to discover the road anew, every single day.

Features

• The 2x12-speed version of the 105 crank Shimano's proven hollow construction methods are used to enable not only a visually attractive, but also a lightweight yet rigid drivetrain component.
• The guiding principle of Shimano's Hollowtech II technology is the perfect balance between stiffness, stability, weight and rotational efficiency.
• In its entirety, with the FC-R7100-12 road cyclists get not only an extremely lightweight, but also powerful crank, whose durable arms provide efficient power transmission. 

Specifications

• Material- Aluminum
• Recommended Use- Road
• Crank Arm Length- 160, 165, 170, 172.5, 175
• Shifting System- 12-speed
• Bottom Bracket Axle Profile- 24mm Hollow Shaft
• Bottom Bracket Case Width- 68mm, 70mm
• Bolt Circle Diameter- 110mm
• Chainring Mount- 2-speed
• Chain Line- 44.5mm
• Q-Factor- 148mm
• Weight- 754g