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.

• 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 chainline
• 148mm Q-factor
• Compatible with HG 12-speed chain

Item Specifications
BB Included	No
Chainline/Hub Compatibility	135/142 Road Disc Hubs > 415 mm Chainstay
Chainring BCD	110 Shimano Asymmetric
Color	Black
Crank Intended Use	Road
Crank Length (mm)	170
Defined Color	Black
Drivetrain Speeds	12
keyword search	105
Number of Chainrings	Double
Pedal Spindle	9/16"
Rings	50/34
Spindle Interface Type	Shimano Hollowtech II
Weight	754