The Shimano 105 R7100 12-speed 50-34T crank offers a perfect balance between efficiency and low weight.
Made of aluminum, the crank is anodized black and offers an attractive and luxurious look. The plastic ribs on the back of the chainrings represent the unique structural design of the SHIMANO 105, which enables significant weight savings with crisp shifting performance.
The 105 R7100 12-speed 50-34T crank offers two indispensable functions: transferring pedal power into drive energy and ensuring extremely fast and precise shifting at the front. With the lightweight HOLLOWTECH II crank arms and the outstanding chainrings from Shimano, the FC-R7100 crankset guarantees reliable function and performance. The FC-R7100 is also offered with shorter crank arms to provide a suitable option for every type of rider.

Highlights:
- Optimal power transmission
- Perfect balance between stiffness, stability, weight and rotational efficiency
- HOLLOWGLIDE structure is lighter while still offering optimized power transfer and faster, more precise front shifting
- Hollowtech II
- 4-arm crankset
- Redesigned tooth profile for wider pitch
- Q factor: 148
- Chainline: 44.5mm
- Bolt circle diameter: 110mm
- Compatible chain: CN-M9100
- Recommended bottom bracket press fit: SM-BB72-41B
- Recommended bottom bracket thread: SMBBR60
- Weight according to the manufacturer: 685g

(Translated with Google Translate)