Shimano crankset 105 Di2 FC-R7100 172.5 50-34

The newly developed cranks offer a perfect balance between efficiency and light weight. Made of aluminum, the crank is black anodized and offers an attractive as well as luxurious look. The plastic ribs on the back of the chainrings represent the unique structural design of SHIMANO 105, which allows a significant weight savings with crisp shifting performance.

Features:

• Perfect balance between stiffness, stability, weight and rotational efficiency.
• HOLLOWGLIDE structure is lighter yet offers optimized power transmission and faster, more precise shifting in front
• Crank arm length: 160, 165, 170, 172.5, 175 mm Gradation: 50-34Z, 52-36Z Q-factor: 148 mm

Specifications:

• MODEL NUMBER: FC-R7100
• GROUP: SHIMANO 105 R7100 Di2 group
• Color: Black
• Bottom bracket shell width with thread 70 mm: ✔
• Chainring combination: 50-34Z 52-36Z
• Compatible bottom bracket type_outside: ✔
• Mounting bolt for crank included: ✔
• Crank arm length 160mm: ✔
• Crank arm length 165 mm: ✔
• Crank arm length 170 mm:✔
• Crank arm length 172.5 mm: ✔
• Crank arm length 175 mm: ✔
• Spider/chainring arms: 4
• HOLLOWTECH II: ✔
• HOLLOWTECH crank: ✔
• Chain guard option_Without chain/ram guard: ✔
• Recommended bottom bracket_press fit: SM-BB72-41B
• Recommended bottom bracket_thread (normal): SM-BBR60
• Bottom bracket shell width with thread 68 mm: ✔
• Q-factor: 148 mm
• Chainline: 44.5 mm
• Compatible chain: 12-speed HG
• Bolt circle diameter: 110 mm
• Rear gear ratios: 12