Shimano CS-HG400 9-speed MTB cassette

The MTB cassette Shimano CS-HG400 9-speed is designed for transmissions Shimano with 9 gears, it offers an excellent balance between precise gear changes, versatility and reliability. Thanks to the technology Shimano Hyperglide, the profiles and ramps of the sprockets are designed to facilitate the movement of the chain from one gear to the next and ensure smooth and precise gear changes.

Available with a range of tooth configurations, the Shimano CS-HG400-9 enables the bike to be adapted for a range of uses, from competitive mountain biking to leisure rides and touring. It is compatible with chains Shimano HG 9-speed and freewheel bodies Shimano to the appropriate HG standard.

A versatile 9-speed cassette for mountain biking

The Shimano CS-HG400-9 is a cassette designed for mountain bike drivetrains Shimano 9-speed. It features the technology Hyperglide, designed to optimise the movement of the chain between the various sprockets.

The gear shift ramps and the specific shape of the teeth improve the speed and precision of gear changes. This design also helps to maintain a smooth pedalling action when changing gears under a variety of riding conditions.

The cassette is made from 9 steel sprockets, with a nickel-plated finish, and a nickel-plated steel lock nut.

A range of gear ratios to suit your drivetrain

One of the advantages of the cassette Shimano CS-HG400 9v is the availability of several tiers.

Depending on the version you choose, you’ll find, amongst other things:

• 11–28 teeth : suitable for use where small gaps between gears are required.

• 11–32 teeth : a versatile all-rounder for a range of mountain biking activities.

• 11–34 teeth : makes climbing easier.

• 11–36 teeth : suitable for more undulating routes and challenging climbs.

• 12–36 teeth : favours low gear ratios with a large 36-tooth sprocket.

The exact combinations of sprockets are defined by Shimano depending on the version of the cassette.

Technology Shimano Hyperglide

Technology Hyperglide is one of the main strengths of this cassette.

The sprockets feature precisely positioned tooth profiles and ramps to guide the chain during gear changes. This results in faster and more precise indexed gear changes.

For the cyclist, this means a drivetrain that is more pleasant to use, particularly when frequent gear changes are required on hilly or technical routes.

Compatible with gearboxes Shimano 9-speed

The CS-HG400-9 is designed to work with a chain Shimano HG 9-speed. It uses the standard spline pattern HG-M, compatible with freewheel bodies Shimano designed for 10-, 9- and 8-speed drivetrains and certain 11-speed mountain bike systems.

It is therefore a suitable solution for replacing a worn cassette on a mountain bike fitted with a derailleur system Shimano Compatible with 9-speed systems.

Before fitting, however, it is important to check that the cassette is compatible with the rear derailleur, the chain length and the total gear range, particularly for the 11-34, 11-36 and 12-36 versions.

An ideal cassette to replace a worn-out drivetrain

As the kilometres go by, the teeth on the sprockets can wear down, leading to problems such as the chain skipping, less precise gear changes or a less smooth ride.

Replacing the cassette can help restore smoother operation of the drivetrain, particularly when done at the same time as replacing a worn chain.

The Shimano CS-HG400-9 It is therefore an attractive option for upgrading a 9-speed MTB drivetrain without having to replace the entire groupset.

the Shimano The CS-HG400-9 is a particularly good choice for refurbishing a reliable and functional 9-speed mountain bike drivetrain.

Its main advantage is its versatility. The wide range of gear ratios available means you can choose the gearing that best suits the terrain and your riding style. A cassette in 11–28 will be better suited to use where narrower gaps are required, whilst a version 11–34, 11–36 or 12–36 will make climbing easier.

Hyperglide technology also remains a key feature: when the cassette, chain and derailleur settings are correctly matched, gear changes are precise and smooth.

Expert advice: When replacing a heavily worn cassette, also check the condition of the chain. Fitting a new cassette with a very worn chain can cause the chain to skip and accelerate wear on the new sprockets.

To choose the right gear ratio, take into account your crankset, your rear derailleur and the type of terrain you ride on. A large cassette isn’t always necessary if you mainly ride on flat terrain.

Technical specifications

• Brand: Shimano

• Model: CS-HG400-9

• Type: MTB cassette

• Number of gears: 9

• Technology: Hyperglide

• Compatible chain: Shimano HG 9-speed

• Freewheel body: Shimano HG-M

• Number of sprockets: 9

• Gear material: steel

• Finish of the sprockets: nickel-plated

• Lockring material: steel

• Lockring finish: nickel-plated

• Available dentures: 11-28, 11-32, 11-34, 11-36 and 12-36 teeth, depending on the version

• Usage: Mountain biking, hiking, trekking and compatible with 9-speed drivetrains

• Editing: freewheel body Shimano HG-compatible

• Tightening torque for the lock nut: 30 to 50 Nm, as recommended Shimano.