Shimano 105-R7100 12s Chainset

Perfect for pairing up with the rest of the Shimano 105 Di2 groupset, this 12 speed chainset comes kitted out with hollow aluminium crankarms for the best balance of durability, rigidity and low weight. Shimano has also put each crankarm through its anodising process for extra protection against wear and corrosion, making it ideal for enduring mile after mile of road, in all weather conditions. Another highlight is the resin ribs on the back of this model’s chainrings, which use Shimano 105’s unique structural design to achieve further weight savings and crisp shifting performance.

Hollowtech II Technology
Providing the best balance of stiffness, strength, weight and rotating performance, the concept of Hollowtech II technology is focused on producing a superior crankset that will maximise your power transfer. The rigidity of the crankset ensures pedalling efficiency while its weight, a key element of the crankset, you want light, aids in cycling longer distances where you need to pedal more. Moreover, the Hollowtech II crankset has a high-precision sealing in the bearing area to increase durability maintaining the excellent rotating performance for long periods.

Hollowglide Technology
This model features Hollowglide technology on its outer chainring. High rigidity hollow structure cuts down on weight yet maintains strength. Better power transfer and quicker and more precise front shifting.

Shimano 105 Di2 brings electronic wireless 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.

Technologies:
– 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.

Crankarm Material: Hollow Aluminium with an Anodised finish
Use: Road
Speed: 12 speed
Spider/Gear Arms: 4
Q-factor: 148mm
Chainline: 44.5mm
PCD: 110mm
Compatible Chain: HG 12 speed
Bottom Bracket Included: No, available separately; Recommended Press Fit BB: SM-BB72-41B; Recommended Threaded BB: SM-BBR60
Technology: Hollowtech II, Hollowglide

Product Data

No. Of Chainrings: Double
Chainset type: Double
Chainring Size: 50 Tooth, 34 Tooth
Speed: 12 Speed
Road: Yes