SHIMANO DEORE XT M8100 12 Speed Groupset Rear Derailleur RD-M8100 Shifter SL-M8100 Cassette CS-M8100 10-51T CN-M8100 Original
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Specifications
- Brand Name
- SHIMANO
- Origin
- Jp(origin)
- High-concerned chemical
- None
- Type
- Rear Derailleur
- Components
- Derailleurs
- Gears
- 12 Speed
- Model Number
- M8100
- Derailleur Groupset Type
- Mechanical Derailleur system
- Material
- aluminum
- Series
- Shimano XT M8100 12 Speed Groupset
Product Description
Groupset include 4 model original parts：
1.SL-M8100-R / SL-M8100-IR
2.RD-M8100-SGS
3.CS-M8100-12
10-45T: 10-12-14-16-18-21-24-28-32-36-40-45T /10-51T: 10-12-14-16-18-21-24-28-33-39-45-51T
4.CN-M8100 116L
Parts detail：
1.SL-M8100-R
SHIMANO DEORE XT - RAPIDFIRE PLUS - Right Shift Lever - Clamp Band - 12-speed
--Quick and easy shifting heightens focus and control
1.SL-M8100-IR
SHIMANO DEORE XT Right Shift Lever I-SPEC EV 12-speed
--Quick and easy shifting heightens focus and control
--Customizable ergonomics
2.RD-M8100-SGS
SHIMANO DEORE XT - Rear Derailleur - SHIMANO SHADOW RD+ - 1x12-speed
--Fast and precise shifting performance optimized to take on any trail
--Silent drivetrain in all gear positions
--Stable drivetrain on rough terrain
--Low sprocket_Max./Min. 51T/51T
--Top sprocket_Max./Min. 10T/10T
--Total capacity 41T
3.CS-M8100-12
SHIMANO DEORE XT - 12-Speed - HYPERGLIDE+ - MTB Cassette Sprocket
--Definitive shifting performance
--MICRO SPLINE
--Combination：
10-45T：10-12-14-16-18-21-24-28-32-36-40-45T
10-51T： 10-12-14-16-18-21-24-28-33-39-45-51T
4.CN-M8100
SHIMANO DEORE XT - 12-Speed - HYPERGLIDE+ - SIL-TEC - MTB Chain
--Proprietary design ensures smooth shifts and strength
--Compatible with 12-speed drivetrain
Pros & Cons
Pros
- Genuine official SHIMANO DEORE XT M8100 parts for premium mountain bike performance
- Wide gear range options for tackling steep terrain and fast trail riding
- Mechanical shifting for reliable, consistent performance on off-road trails
- Lightweight aluminum construction to minimize added bike weight
Cons
- Premium price point that is more expensive than entry-level mountain bike groupsets
- Does not include crankset or bottom bracket, only the four listed components
- Only compatible with 12-speed mountain bike drivetrains, not other speed setups
- Higher shipping costs for international buyers due to Japanese origin
Common Questions
What components are included in this DEORE XT M8100 groupset?
The kit includes SL-M8100 shifters, RD-M8100 rear derailleur, CS-M8100 cassette (available in 10-45T or 10-51T options), and CN-M8100 chain.
What speed range does this groupset support?
This is a 12-speed mechanical mountain bike drivetrain groupset.
What material are the groupset components made of?
The components use lightweight aluminum construction for reduced overall bike weight.
Which bikes is this groupset compatible with?
It is designed for 12-speed mountain bikes, compatible with both front single and double chainring drivetrain setups.
Where is this SHIMANO DEORE XT groupset shipped from?
The product originates from Japan per the listed origin specifications.
Product information last updated on April 5, 2026