Shimano 105 R7101 Road 2x12-Speed Cassette 11-34 Teeth

The Shimano 105 CS-R7101 12-speed cassette is designed for riders using the 105 R7100 groupset on a road bike. Its 11-34-tooth range covers both fast sections and long climbs.

• Wide range from 11 to 34 teeth: acceleration on the flat and easy climbing
• 12 speeds with close steps, so you can always find the right gear
• Weighs 361 g (11-34T), thanks to drilled, lightened sprockets
• Works with the 105 R7100 groupset, both mechanical and Di2
• Check that you have a HG-Spline-L2 12-speed freehub, or a 11-speed road freehub (HG-11)

Technical specifications

• Model: CS-R7101, 12-speed, 11-34T
• Teeth: 11-12-13-14-15-17-19-21-24-27-30-34
• Weight: 361 g (11-34T)
• Materials: Light alloy sprocket carrier; drilled, lightened sprockets
• Finish: Nickel-plated, silver
• Compatibility: HG-Spline-L2 12-speed freehub; also compatible with 11-speed road freehubs (HG-11)
• Groupset: 105 R7100, mechanical and Di2
• Chain: HG 12-speed (Super Narrow)
• Colour: Silver

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.