Riders on 9-speed mountain, trekking and e-bikes who want an easy low gear for climbing.
The Shimano Alivio CS-HG400-9 is a 9-speed cassette with HYPERGLIDE shifting and close steps between the main sprockets for smooth, comfortable pedalling. This version runs 11-13-15-17-20-23-26-30-34T.
The sprockets are nickel plated and drilled to save weight, with a nickel plated steel lockring. Shimano rates the HG400 as meeting its durability requirements for E-MTB use, so it's a tough choice for e-bikes as well as regular bikes.
With a 34T biggest sprocket, the 11-34T is the pick for hilly commutes, touring with luggage and mountain biking, where a low gear keeps you turning the pedals.
11-34T range
A big 34T bail-out gear for steep climbs.
HYPERGLIDE shifting
Shimano tooth profiles for smooth changes under load.
E-MTB rated
Meets Shimano durability requirements for E-MTB.
Corrosion resistant
Nickel plated, drilled sprockets and steel lockring.
Cassette
Compatibility
HYPERGLIDE
Shimano's shift ramps and tooth profiles guide the chain between sprockets for quick, smooth shifts, even under load.
Great for
Maybe not for
Fits a standard Shimano HG 8, 9 or 10-speed freehub body. On an 11-speed road freehub body you need a 1.85 mm spacer behind the cassette. Needs a rear derailleur rated for a 34T largest sprocket. Use a 9-speed chain.
Cassette and chain together
A worn chain will skip on a new cassette. Check chain wear before you fit this, and replace the chain at the same time if it's past the limit.
Check your derailleur
A 34T sprocket needs a rear derailleur that can handle it, usually a medium or long cage mountain derailleur. You may also need a longer chain when moving up from a smaller cassette.
