SHIMANO CS-R7101 12 Speed 11-34T Road Bike Cassette

The SHIMANO CS-R7101 12 Speed 11-34T Cassette is designed for road cyclists who want smooth shifting performance, reliable durability, and a wide gear range for every riding condition. Built as part of the Shimano 105 series, this cassette delivers fast and precise gear changes even under heavy pedaling load. It is compatible with both electronic and mechanical 12-speed drivetrains, making it a versatile upgrade for modern road bikes. With a wide 11-34T gear range, riders can confidently tackle steep climbs, fast descents, and long endurance rides while maintaining efficient cadence. The cassette uses durable steel sprockets and offers shifting performance close to Shimano Ultegra with only a slight weight difference. Another major advantage is its compatibility with both Shimano 12-speed and traditional road freehub bodies, making installation easier for a wider range of wheelsets.

Key Features

• Speed Compatibility: 12-speed

• Gear Range: 11-34T wide-range cassette

• Series: Shimano 105 R7100 Series

• Smooth Shifting: Fast and accurate gear changes under load

• Wide Compatibility: Works with electronic and mechanical drivetrains

• Freehub Compatibility: Fits Shimano 12-speed and conventional road freehub bodies

• Efficient Performance: Optimized sprocket spacing for smoother shifting

• Durable Construction: Steel sprockets for long-lasting performance

• Versatile Riding: Suitable for climbing, flat roads, and high-speed descents

• Road Optimized: Designed for modern road cycling efficiency

Product Specifications

• Model: CS-R7101-12

• Brand: Shimano

• Series: Shimano 105

• Speed: 12-Speed

• Cassette Ratio: 11-34T

• Smallest Sprocket: 11 Teeth

• Largest Sprocket: 34 Teeth

• Material: Steel sprockets

• Freehub Type: Shimano HG road freehub compatible

• Drivetrain Compatibility: Mechanical and Di2 electronic systems

• Application: Road cycling

• Shifting Technology: Hyperglide optimized shifting

Shifting Performance

The Shimano CS-R7101 cassette is engineered to deliver smooth and stable shifting across all riding conditions. The optimized sprocket spacing allows quick gear engagement while maintaining pedaling efficiency. Even during aggressive acceleration or steep climbing, the cassette provides consistent shifting performance with minimal delay. Its 11-34T range gives riders more flexibility for endurance rides, hilly terrain, and long-distance road cycling without sacrificing speed on flat sections.

Easy Operation / Usage

• Install directly onto compatible Shimano HG road freehub bodies

• Pair with Shimano 12-speed road drivetrains for best performance

• Suitable for both mechanical and electronic shifting systems

• Ideal for endurance road bikes, climbing setups, and all-round riding

• Regular cleaning and lubrication help maintain smooth shifting performance

Why Choose This Product

• Delivers reliable Shimano 105-level performance

• Wide gear range supports multiple riding styles

• Smooth shifting even under heavy pedaling pressure

• Compatible with older road freehub bodies for easier upgrades

• Durable steel construction increases long-term reliability

• Excellent balance between performance, weight, and value

• Great choice for endurance riders and performance-focused cyclists

In the Box

• Shimano CS-R7101 12-Speed 11-34T Cassette