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ShimanoShimano · Cassettes

Deore XT CS-M8000 11-Speed Cassette 11-42T

Wide-range 11-speed gearing for confident MTB climbing and controlled cadence.

$179.99

Only 1 left · Ready to pick up from Ashburton Cycles

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11-speed
Speeds
11-42T
Cassette range
434 g
Weight
LINKGLIDE, HG 11-speed
Compatible chain

Overview

A good choice for MTB, cross-country and all-mountain riders who want wide-range 11-speed gearing with a low climbing gear and durable everyday performance.

This is a 11-speed HG cassette built around a broad 11-42T range. The 42-tooth largest sprocket gives you a low climbing gear for demanding gradients, while the stepped sprocket sequence helps keep cadence changes controlled as you move through the range.

The cassette uses two aluminium gears and nine steel gears, combining lower weight with the wear resistance required for regular mountain-bike use. At a published 434 g, it offers a practical balance for cross-country and all-mountain builds where reliable shifting matters as much as keeping weight in check.

Its DYNA-SYS11 gearing uses shaped teeth and shift ramps to support fast, responsive indexed shifting and stable chain movement. Before ordering, check that your wheel has an HG spline M freehub body and that your drivetrain uses a compatible LINKGLIDE or HG 11-speed chain.

Wide 11-42T range

The large 42-tooth sprocket supplies a useful low gear for steep climbs while retaining an 11-tooth high gear for faster sections.

11-speed MTB gearing

Designed for 11-speed drivetrains, with a progression that helps you maintain a smooth pedalling rhythm across varied terrain.

Mixed aluminium and steel construction

Two aluminium gears help control weight, while nine steel gears provide durable working surfaces for demanding riding.

DYNA-SYS11 shifting

Positioned ramps and tooth profiles support precise indexed shifts and improved chain control.

HG spline M fitment

Uses an HG spline M freehub body; confirm your hub and drivetrain compatibility before fitting.

Published 434 g weight

A practical weight for a wide-range MTB cassette, balancing climbing range with durability.

Ask about this product

Specifications

General

Series
DEORE XT
Cassette type
HG
Rear speeds
11
Combination name
11-42T (bt)
Sprocket teeth combination
11-13-15-17-19-21-24-28-32-37-42T

Compatibility

Compatible chain
LINKGLIDE, HG 11-speed
Freehub spline compatibility
HG spline M: 10/9/8-speed, MTB 11-speed, 7-speed CS-HG400/HG210
Spoke protector compatibility
CS-M8000 11-speed, 42T largest sprocket

Materials & construction

Aluminium spider arm quantity
2
Aluminium spider arm finish
Anodized
Steel spider arm quantity
-
Aluminium gear quantity
2
Steel gear quantity
9
Steel gear finish
Shot-Ni
Lock ring material
Aluminium
Lock ring finish
Anodized

Dimensions & weight

Average weight
434 g for 11-42T
Sprocket spacer
2.18 mm

Service parts and interchangeability

11-42T sprocket unit
32-37-42T
11-42T sprocket unit alternative
21-24-28T
Lock ring and spacer
Specified as a service part
Lock ring removal tool
TL-LR15

Technology

DYNA-SYS11

The 11-speed MTB drivetrain platform delivers precise shifting across a wide range, helping you maintain a smooth pedalling rhythm on demanding climbs and descents.

Wide cassette sprocket

The broad 11-42T range gives you a low climbing gear without sacrificing useful progression through the middle sprockets.

Rhythm step gear progression

Carefully spaced sprockets help keep cadence changes controlled and efficient as you shift through the cassette.

HG Cassette / HYPERGLIDE

Positioned shift ramps and tooth profiles support fast, responsive indexed shifting and improved chain control.

Aluminium and steel gear combination

Aluminium components reduce weight while steel sprockets provide the durability needed for demanding mountain-bike use.

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