Shimano Deore CS-M6100 Cassette - 12-Speed | 10-51t
Cassettes
Shimano Deore CS-M6100 Cassette - 12-Speed · 10-51t
Shimano Deore CS-M6100 Cassette - 12-Speed | 10-51t
The Shimano Deore CS-M6100 Cassette is built to bring real 12-speed trail performance to riders who want wide-range gearing without a flagship price tag. Read the overview
At a glance
- Model
- CS-M6100-12
- Series
- Shimano Deore M6100
- Speed
- 12-speed
- Cassette Range
- 10-51t
1 in stock
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Overview
What is the Shimano Deore CS-M6100 cassette built for?
The Shimano Deore CS-M6100 Cassette is built to bring real 12-speed trail performance to riders who want wide-range gearing without a flagship price tag. Its 10-51t spread gives you a genuine bailout climbing gear and a fast 10-tooth top end, so steep punchy climbs and high-speed descents are both covered. HYPERGLIDE+ tooth profiling lets you keep pedaling through shifts, which is exactly what you want when the trail pitches up unexpectedly.
This cassette runs on a MICRO SPLINE freehub body and pairs with any Deore M6100 12-speed drivetrain, using a 12-speed Hyperglide+ chain for the smoothest, quietest shifting. BEAM SPIDER construction keeps the larger cogs stiff while trimming weight, so the gearing range never comes at the cost of durability or shift quality. It is the right choice for trail and all-mountain riders who want proven Deore reliability across the full 12-speed range.
All the specs
- Model
- CS-M6100-12
- MPN
- ICSM610012051
- Series
- Shimano Deore M6100
- Speeds
- 12-speed
- Cassette Range
- 10-51t
- Cog Combination
- 10-12-14-16-18-21-24-28-33-39-45-51t
- Freehub Interface
- Micro Spline
- Shifting Technology
- Hyperglide+
- Construction
- Beam Spider, all steel cogs
- Drivetrain Setup
- 1x or 2x
- Recommended Chain
- Shimano 12-speed Hyperglide+ (CN-M6100 or equivalent)
FAQ
Good questions
Get to know Shimano

There's more to Shimano than this one product. Our Shimano page has the full Shimano lineup we carry and more about the brand.
Visit the Shimano page →What freehub body does the CS-M6100 require?
It requires a Shimano Micro Spline freehub body. The 10-tooth small cog will not fit a standard Hyperglide or HG freehub, so your wheel needs a Micro Spline driver.
Is the Deore CS-M6100 compatible with other Shimano 12-speed groups?
Yes. It shares the 12-speed Hyperglide+ standard with SLX, XT, and XTR, so it works across Shimano 12-speed Micro Spline drivetrains. Pair it with a 12-speed Hyperglide+ chain for the best shifting.
What chain should I run with this cassette?
Use a Shimano 12-speed Hyperglide+ chain such as the CN-M6100. Hyperglide+ chains are designed to match the cassette tooth profiling for smooth shifting under load.
Is this cassette only for 1x setups?
No. Shimano's compatibility chart lists the CS-M6100 10-51t with the RD-M9120, RD-M8120, and RD-M7120 SGS rear derailleurs for 2x12-speed setups, so it works with a double as well as a single front chainring.
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