Cassette
Shimano XT CS-M8100-12 (10-45T)
12-speed 10-45T Hyperglide+, Micro Spline
What this fits
- Freehub body
- Shimano Micro Spline
- must match your bike
- Speeds
- 12
- must match your bike
- Range
- 10-45
- must be within your bike's limit
Cogs: 10-12-14-16-18-21-24-28-32-36-40-45
Mixing speed counts across shifter, derailleur, chain and cassette is the most common upgrade mistake — check every part in the drivetrain, not just this one.
Intended for mtb builds.
Manufacturer specifications
- Cassette Body Type
- Shimano Micro Spline
- Cogs
- 10-12-14-16-18-21-24-28-32-36-40-45
- Color
- Silver/Black
- Defined Color
- Silver
- Designed for ebike
- Yes
- Drivetrain Speeds
- 12
- Range
- 10-45
- Weight
- 461
Specifications recorded from the retailer product listing.
Where to buy
We don't have a retailer link for this part yet. Any bike shop can order it — take the exact name from this page so you get the right version.