Shimano Ultegra Cassette Sprocket CS-HG800 11-Speed (11-34T)

CS-HG800-11 Shimano Ultegra 11 Speed HG-EV 11-34T Road Cassette Sprocket

Compatible with GS cage rear derailleurs, the HG800-11 cassette offers low climbing gears perfect for mixed surface riding. It is compatible with both 10 and 11-speed freehubs.

The Shimano Ultegra CS-HG800 11-Speed Cassette Sprocket is designed for riders who want smooth shifting, versatile gear ratios, and reliable performance across different terrains. Built with Shimano’s advanced HG-EV technology, this cassette provides rider-tuned gear combinations that help maintain optimal cadence whether you are climbing steep hills, riding long endurance routes, or exploring mixed surfaces. The wide 11-34T gear range gives cyclists easier climbing capability without sacrificing efficiency on flat roads. It is compatible with GS cage rear derailleurs and works with both 10-speed and 11-speed freehubs, making it a flexible upgrade for many road and hybrid bike setups. With Shimano’s proven Hyperglide shifting technology, this cassette ensures fast, precise gear transitions while maintaining the durability trusted by serious cyclists.

Key Features

• Speed Compatibility: 11-Speed cassette designed for smooth and precise shifting

• Gear Range: 11-34T wide range for improved climbing and versatile riding

• Technology: HG-EV cassette technology for optimized cadence and gear selection

• Shifting Performance: Hyperglide design improves shift accuracy and smoothness

• Derailleur Compatibility: Works with GS cage rear derailleurs

• Freehub Compatibility: Compatible with both 10-speed and 11-speed freehub bodies

• Versatile Usage: Suitable for road bikes and mixed surface riding

• Flexible Installation: Spacer required when fitting to certain road bike hub bodies

Product Specifications

• Brand: Shimano

• Series: Ultegra

• Model: CS-HG800-11

• Speed: 11-Speed

• Gear Ratio: 11-34T

• Cassette Type: HG Cassette Sprocket

• Technology: HG-EV and Hyperglide

• Rear Derailleur Compatibility: GS cage rear derailleur

• Freehub Compatibility: 10-speed and 11-speed freehub bodies

• Recommended Use: Road cycling, endurance riding, mixed terrain riding

Gear Performance & Cadence Control

The HG-EV cassette system is designed to give riders better control over cadence and gear transitions. With optimized gear ratios, cyclists can maintain efficient pedaling whether climbing steep gradients or riding fast on flat terrain. The 11-34T configuration offers a wider gear range that reduces strain during climbs while still providing tight gear steps for smooth speed adjustments. Shimano’s Hyperglide technology ensures that each shift is quick and consistent, allowing riders to focus on performance and comfort during long rides.

Easy Operation / Usage

• Install the cassette on a compatible 10-speed or 11-speed freehub body

• Use a spacer when installing on certain road bike hub bodies

• Pair with a GS cage rear derailleur for best performance

• Maintain proper chain compatibility with an 11-speed drivetrain

• Regular cleaning and lubrication will help maintain smooth shifting performance

Why Choose This Product

• Wide climbing gear range ideal for challenging routes

• Smooth and reliable Hyperglide shifting performance

• Flexible compatibility with multiple freehub types

• Durable construction designed for long-term cycling use

• Ideal for endurance rides and mixed surface cycling

In the Box

• Shimano Ultegra CS-HG800-11 Cassette Sprocket (11-34T)