Shimano Deore XT CS-M771 Cassette — 10-Speed, 11-34T, HG Freehub, Mountain Bike

Shimano Deore XT CS-M771 is a 10-speed 11-34T mountain cassette for Dyna-Sys drivetrains, delivering a wide gear range with smooth, durable HYPERGLIDE shifting.
Genuine Shimano Deore XT, brand new in retail packaging.
Will it fit? This is a 10-speed 11-34T cassette for a Shimano HG (HYPERGLIDE) freehub, built for Shimano 10-speed Dyna-Sys mountain drivetrains. Pair it with a 10-speed HG-X chain. Not compatible with 10-speed road or 9-speed systems.
Key Specifications


Brand
Shimano


Series
Deore XT M770 (10-speed)


Model
CS-M771


MPN
ICSM77110134


UPC
689228428690


Type
Cassette


Speeds
10-speed


Range
11-34T


Freehub
Shimano HG (HYPERGLIDE)


Drivetrain
Shimano Dyna-Sys 10-speed mountain


Material
Steel sprockets, aluminum spider and lockring


Weight
323 g (11.4 oz)


Color
Silver


Country of Origin
Japan


Condition
Brand new, original Shimano retail packaging


Technology Highlights


✓  Wide 11-34T range. A proper climbing gear without giving up the top end, which is why this stayed the default XT 10-speed cassette for years.

✓  HYPERGLIDE profiling. Shaped ramps and pins move the chain across under load, so shifts stay smooth when you are actually pushing.

✓  Aluminum spider and lockring. Saves weight while the sprockets themselves stay steel for wear life.

✓  Deore XT durability. The 10-speed XT cassette riders keep going back to when a drivetrain needs refreshing rather than replacing.

What's in the Box

1 × Shimano Deore XT CS-M771 10-speed cassette, 11-34T
Lockring and documentation as supplied
Original Shimano retail packaging


Brand new in retail packaging. Ships from Ontario, California (US domestic) · Estimated delivery 3–5 business days · Free 30-day returns.