Shimano 105 FC-R7100 2x12-Speed Crankset 52/36 Teeth 172.5mm

The Shimano 105 FC-R7100 crankset is designed for riders fitting a 12-speed drivetrain to a road bike. With 52/36-tooth chainrings and 172.5 mm cranks, it is suitable for fast rides and climbs.

• Hollow forged aluminium cranks, stiff and durable for road riding
• 52/36-tooth double chainring: high gears on the flat and low gears for climbing
• Designed for Shimano 12-speed drivetrains, with a HG+ chain recommended
• Bottom bracket not included: requires SM-BBR60 (BSA/Italian) or SM-BB72-41B (PressFit)
• 172.5 mm crank length: check that this is the right size for you

Technical specifications

• Crank length: 172.5 mm
• Chainring teeth: 52-36T
• Crank material: Hollow forged aluminium
• Q-factor: 148 mm
• Chainline: 44.5 mm
• BCD: 110/80 mm (asymmetric)
• Standard: HOLLOWTECH II
• Compatibility: Shimano 12-speed road bike drivetrains
• Bottom bracket: Not included, threaded, 68/70 mm shell
• Colour: Black

Founded in 1921 in Sakai, Japan, by Shozaburo Shimano, Shimano is still based in the same city today. For cyclists, it makes drivetrains, brakes, wheels, pedals and cycling shoes. Its history in bicycle components began with the production of freewheels in 1922.