• Shimano CS-HG800 Kassette - 11 speed 11-34T
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Product Description

Briefly about Shimano CS-HG800 Cassette 11-speed - 11-34T

  • Ultegra-level cassette developed for modern 11-speed drivetrain systems.
  • Wide gearing with 11-34T range, perfect for steep climbs and varied terrain.
  • Compatible with both road and MTB hubs (spacer included in the package).
  • HG-EV technology ensures lightning-fast, silent, and precise gear shifts every time.
  • Lightweight construction with aluminum spider arm and carbon fiber reinforced polymer.
  • High durability with nickel coating that effectively protects against corrosion.

The Shimano CS-HG800 Cassette 11-speed - 11-34T is one of the most versatile components in Shimano's range, designed for the rider who demands maximum performance in varied terrain. As part of the renowned Ultegra family, this cassette combines professional precision with a robustness that makes it suitable for everything from road racing to demanding gravel adventures. This model is created to deliver a fluid stroke, whether you are fighting your way up a mountainside or sprinting on the flat sections.

Who is this 11-speed cassette for?

When it comes to the target audience, the Shimano CS-HG800 Cassette 11-speed - 11-34T is the ideal choice for the serious cycling enthusiast and the adventurous gravel rider. If you often find yourself in terrain where standard road gearing feels too heavy, this model gives you the necessary freedom. The wide gear range is a lifeline for riders participating in challenging races with many vertical meters, or for those who want to explore gravel paths without losing their cadence. Since the cassette also fits on older 10-speed hubs, it is a perfect upgrade for riders wanting the benefits of a modern 11-speed drivetrain on their existing wheelsets.

Using the Shimano CS-HG800 Cassette 11-speed - 11-34T

The application possibilities are extensive thanks to the unique technical design. On a modern road bike, this Shimano CS-HG800 Cassette 11-speed - 11-34T gives you an extra gear for those days when legs are tired or the incline percentages become double-digit. Within the gravel discipline, it has become a standard as it combines close steps in the fast gears with a large 34-tooth sprocket for technical climbs. It works seamlessly with Shimano HG-X11 chains, ensuring that every movement of the gear lever results in an immediate and silent shift. It is also extremely popular for use on indoor trainers, where simulated mountain terrain requires wide gearing for a realistic training experience.

Mechanical precision and technical superiority

Choosing the right bicycle gearing is crucial for your overall riding experience. By integrating a Shimano CS-HG800 Cassette 11-speed - 11-34T into your transmission, you reduce the load on your knees and muscles as you can maintain a more efficient cadence over longer periods. The HG-EV technology in the cassette means the sprockets are profiled to catch the chain faster, minimizing energy loss during gear shifts. It is this mechanical superiority that sets Shimano apart from competitors and gives you the extra capacity to focus on your wattage output and the road ahead of you.

Value creation: Why choose an Ultegra cassette?

Why should you choose a Shimano CS-HG800 Cassette 11-speed - 11-34T over other alternatives? The answer lies in its unique construction and enormous durability. The cassette is slightly narrower than a dedicated 11-speed road cassette, which makes it compatible with MTB hubs and older hubs when using the included spacer. This provides enormous flexibility across your bike fleet, whether you ride on asphalt or gravel.

At the same time, you get the Ultegra series' legendary balance between weight and durability. With a spider arm constructed in aluminum and carbon fiber reinforced polymer, weight is significantly reduced without compromising stiffness, which is essential when you pedal hard during a sprint. When you invest in a Shimano CS-HG800 Cassette 11-speed - 11-34T, you invest in many seasons of trouble-free cycling with components that are thoroughly tested under the harshest conditions.

Technical specifications for Shimano CS-HG800

Below you will find the most important technical details for your new Shimano CS-HG800 Cassette 11-speed - 11-34T, so you can ensure it fits perfectly with your bike setup:

  • Model name: CS-HG800-11 (Ultegra-level)
  • Gearing: 11-13-15-17-19-21-23-25-27-30-34T
  • Number of gears: 11-speed
  • Weight: Approx. 335 grams
  • Materials: Steel sprockets with nickel coating and CFRP spider arm
  • Technology: HG-EV (Hyperglide EV) for optimized chain guidance
  • Compatible chains: HG-X11 (e.g., CN-HG701 or CN-HG901)
  • Hub compatibility: Road 11-speed, Road 10-speed (with spacer), MTB 11-speed

With a Shimano CS-HG800 Cassette 11-speed - 11-34T, you get a reliable and high-tech solution that transforms your riding experience and ensures you always have the right gear available, no matter where the adventure takes you.
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Delivery: Free for orders over DKK 699. For orders under DKK 699, delivery is available from DKK 37. See more under Delivery.

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Shimano CS-HG800 Kassette - 11 speed 11-34T

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What are the benefits of an 11-34T gearing on the road?

The Shimano CS-HG800 cassette is famous for its impressive 11-34T gearing, making it one of the most versatile components in the Ultegra series. This specific gear range is designed to give cyclists the best of both worlds: the ability to maintain a high top speed on flat stretches while simultaneously having a sufficiently light gear to tackle the most challenging climbs. With 11 teeth on the smallest sprocket, you can put plenty of watts into the pedals when the road is straight or downhill, while the largest sprocket with 34 teeth acts as a lifeline when the gradient increases and your legs begin to build up lactic acid. The wide gearing is particularly advantageous for riders who do not exclusively ride in ideal, flat conditions, but often venture into hilly terrain. By having access to a 34T gear, you minimize the risk of having to stand up in the pedals and overloading your knees and muscles, as you can maintain a more efficient and stable cadence. This leads directly to improved endurance over longer distances, as your body uses energy more efficiently. Whether you are a dedicated leisure rider or an ambitious competitive rider, this flexibility gives you a significant advantage, as you can adapt your riding to changing conditions without feeling that you lack the right gear. This also makes the cassette ideal for modern road bikes, which are often used for both traditional asphalt riding and light adventures on gravel paths, where extra grip and lighter gears are an absolute necessity for a good experience.

How does Shimano CS-HG800 ensure precise gear shifts?

The shifting precision on a Shimano CS-HG800 cassette is the result of decades of technological innovation and an uncompromising approach to material selection. As an integrated part of Shimano's 11-speed system, every single sprocket on this cassette is designed with specific ramp patterns and tooth profiles that work in perfect harmony with Shimano's chains and rear derailleurs. This design ensures that the chain moves quickly, silently, and without hesitation between the sprockets, even when pedaling hard during a sprint or a steep climb. The visual impression of the cassette also supports its technical superiority; the robust lockring, clearly visible in the product photos, is marked with precise specifications such as 40Nm tightening torque, ensuring a stable and secure installation on the freehub body. The materials used in production are carefully selected to balance low weight with extreme durability. This is essential, as the cassette is subjected to significant mechanical forces every time you change gears. The precise surface treatment protects against corrosion and reduces friction, which not only extends the life of the cassette but also reduces wear on your chain. By choosing this model, you invest in a riding experience where you can rely 100 percent on your drivetrain. The mechanical feedback is direct and reliable, giving the rider a sense of control and security. In a sport where marginal gains mean everything, this kind of mechanical precision is often what separates a good ride from a fantastic ride, where all the equipment simply works together seamlessly.

Why choose an Ultegra cassette for gravel and training?

Shimano Ultegra CS-HG800 is the ideal choice for both gravel and intensive training due to its unique construction and exceptional durability. The Ultegra series has long been considered the golden midpoint in Shimano's range, offering professional performance and low weight at a performance level that is accessible to most serious enthusiasts. The cassette is built to withstand the harsh conditions often encountered on gravel routes, such as mud, dust, and constant vibrations. The robust construction means it can handle the beating that off-road riding entails without losing its ability to deliver precise gear shifts. Additionally, the cassette is fully compatible with modern 11-speed systems, making it a versatile upgrade for many existing bike setups. The wide 11-34T gear range is also a major advantage for home trainer use, where simulated terrain can often require very light gears to mimic the world's steepest mountains. By using an Ultegra cassette for your daily training, you ensure that you train with the same high level of quality you would expect for a race. Maintenance is also straightforward, as the design allows for easy cleaning of the individual sprockets, which is crucial for maintaining drivetrain efficiency over time. When you choose this cassette, you get a product that is thoroughly tested under harsh conditions and is built to perform kilometer after kilometer. It is this reliability that makes Shimano a favorite among triathletes and road riders worldwide, knowing that the equipment never fails when it matters most. Investing in an Ultegra component is therefore an investment in many seasons of trouble-free cycling.