Shimano 105 7100 12-Speed Disc Groupset

The Shimano 105 R7100 groupset is a 12-speed road groupset with hydraulic disc brakes. It is designed for those looking to build or upgrade a road bike with mechanical shifting and 50-34 chainrings.

• 12-speed mechanical shifting, with a double chainset featuring 34- and 50-tooth chainrings
• 11-34 cassette: low gears for tackling longer climbs
• Flat mount hydraulic disc brakes for precise, controlled braking
• Braze-on front derailleur, for a mount brazed onto the frame: check that your frame supports it
• Crank arm available in 170, 172.5 and 175 mm: choose the length according to your height

Technical specifications

• Series: 105 R7100
• Use: Road
• Shifting: 2x, 12-speed (mechanical)
• Brakes: hydraulic disc (flat mount)
• Crank Length: 170 mm, 172.5 mm, 175 mm
• Chainrings: 34 and 50 teeth
• Cassette: 11-34
• Front Derailleur: braze-on
• Rear Derailleur: (medium) long cage

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.