Shimano 105 R7100 Crankset

Description

The Shimano 105 FC-R7100 crankset offers an optimized balance between lightweight and efficiency without sacrificing stiffness. The crank is formed with hollow aluminum technology and finished with a durable gloss black anodized. The resin ribs on the back of the chainrings are Shimano 105's unique structural design that achieves both through weight reduction and crisp shifting performance.

Specifications:

Application: Road
Compatibility: Shimano 2x12-speed
Chainring Mount: 110 mm pitch circle, 4-arm asymmetrical

Technical Information:

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
Hollow arms for lightweight, rigidity, and durability
44.5mm chain-line
148mm Q-factor
Compatible with HG 12-speed chain, CN-M8100, CN-M9100, CN-M6100, KMC X12

Compatibility:

2x12-speed:
Shift/brake handle: ST-R8150, ST-R8170, ST-R8060, ST-R9250, ST-R9270, ST-R9160, ST-R9180, ST-7170
Front Derailleur: FD-R8150, FD-R9250
Bottom Bracket: BB-R9100, SM-BB9000, SM-BBR60, SM-BB6700, SM-BB5700, BB-RS500, SM-BB4600, SM-BB92-41B, SM-BB72-41B, SM-BB71-41B, BB-RS500-PB
Chain: CN-M8100, CN-M9100, CN-M6100, KMC-X12

Features:

Number of Chainrings: Double
Chainline/Hub Compatibility: 135/142 Road Disc Hubs > 415 mm Chainstay
Spindle Interface Type: Shimano Hollowtech II
Chainring BCD: 110 Shimano Asymmetric
keyword search: 105
Color: Black
Crank Intended Use: Road
Crank Length (mm): 172.5
Pedal Spindle: 9/16"
Rings: 50/34
Drivetrain Speeds: 12
Defined Color: Black
Weight: 754
BB Included: No

Technology:

Hollowtech II
Shimano Hollowtech II is a crank bottom bracket system designed to achieve an ideal ratio of stiffness, weight and rotational efficiency. It is based on an integration of the bottom bracket and the right crank arm and works with a 24 mm axle or bearing diameter, which has proven to be optimal in terms of stability. In many cases, the bearing cups are on the outside so that the load is better distributed. High-quality precision seals ensure a long service life.