Shimano Deore FC-M5100-1 Hollowtech II Chainring

The Shimano Deore FC-M5100-1 single-chainring crankset is designed for MTB riders who want a simple, robust 1x drivetrain. It fits 10- or 11-speed Shimano groupsets.

• One chainring: simpler shifting and less maintenance, for MTB with a 1x drivetrain
• Compatible with Shimano 1x10- and 1x11-speed drivetrains
• Aluminium crank arm and 24 mm steel axle, Hollowtech II technology
• Available with 30 or 32 teeth: fewer teeth for climbing, more teeth for smoother riding
• Choose the chainring and crank length (170 or 175 mm). Bottom bracket not included

Technical specifications

• Model: FC-M5100-1, Deore M5100 series (Hollowtech II, MTB)
• Chainring teeth: 30T, 32T
• Crank length: 170 mm, 175 mm
• Compatibility: Shimano 1x10-speed, Shimano 1x11-speed
• Chainline: 52 mm
• Q-factor: 178.5 mm
• Chainring mount: 96 mm (4 arms, asymmetric)
• Axle diameter: 24 mm
• Bottom bracket shell width: 68 mm / 73 mm
• Materials: Aluminium crank arm; steel chainring; steel axle

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.