The Shimano 105 Di2 R7100 12V 50/34D crankset is an attractive aluminium crank with hollow arms for light weight, stiffness and durability. The newly designed cranks offer an optimised balance between light weight and efficiency. The connecting rod, formed with hollow aluminium technology, is anodised with a beautiful gloss black anodised finish, giving it a luxurious look. The resin reinforcements on the back of the chainrings are a unique Shimano 105 structural design that achieves both weight reduction and excellent shifting performance.

Features:
- Use: Road
- Optimal balance of stiffness, strength, weight and rotational performance
- HOLLOWGLIDE structure reduces weight but maintains strength for better power transfer and faster, more precise front shifting
- Q-factor: 148 mm
- Chain line (mm) 44.5
- 12-speed HG compatible chain
- P.C.D. (mm) 110
- Rear speeds 12
- Teeth: 50/34

Technology:
- Hollowtech: Providing the best balance of stiffness, strength, weight and turning performance
The technology concept has focused on producing an excellent crankset to maximise the rider's power transfer. The rigidity of the crankset ensures effective pedaling, while its light weight, a key element of the crankset, makes the rider improve performance over longer distances, where he must pedal more.