The Shimano Deore XT FC-M8120 is a high-performance 1x12-speed crankset specifically designed for demanding trail riding and aggressive mountain biking. Its hollow-forged construction from anodized aluminum offers the perfect balance between lightness and stiffness. The innovative Dynamic Chain Engagement+ technology ensures that your chain stays perfectly engaged, even on rough terrain, while running completely silently and efficiently.
Engineered for your adventure
This crankset was made for riders like you who don't compromise. The direct-mount system allows for lightning-fast chainring changes. Hollowtech II technology ensures optimal power transfer. Weighing in at only about 628 grams, you save valuable weight without sacrificing stability.
Precision meets reliability
The 178mm Q-factor ensures optimal pedaling stability and natural movement. The 55mm chainline is specifically designed for modern Boost geometries and works seamlessly with 12-speed drivetrains. Whether you're riding enduro, all-mountain, or cross-country, this crankset delivers consistent power in all weather conditions and on all types of terrain.
specification
| feature | Description |
|---|
| Axle profile | 24 mm hollow shaft (Hollowtech II) |
| Chainring mounting system | Direct mount (Shimano MTB standard) |
| Area of application | MTB. Enduro. All mountain. Cross country |
| Color | Black |
| Housing width | 68 mm or 73 mm |
| Weight | Approximately 628 grams (approximately 608 g without chainring) |
| catenary | 55 mm |
| Crank arm length | 165mm. 170mm. 175mm or 180mm |
| Axle material | Steel, plated |
| Crank arm material | Aluminum, anodized |
| Q-factor | 178 mm |
| Shift arms | 4-armed |
| Rear shift points | 12-fold |
| front gearshift levers | single |
| technology | Dynamic Chain Engagement+ |
| type | Boost (additional 3 mm step) |
Scope of delivery
- 1 x Shimano Deore XT FC-M8120 crankset (crank arms and axle)
Accessory recommendations
| Accesories | Why you need it |
|---|
| Shimano BB MT800 bottom bracket | The recommended bottom bracket for perfect compatibility. It ensures smooth operation and minimal maintenance over a long period. |
| Shimano CN-M8100 12-speed chain | The perfect pairing for this crankset. This chain offers optimal shifting performance and durability in the 12-speed range. |
| Crank puller (bottom bracket tool) | Essential tool for the professional installation and subsequent maintenance of your crankset. Makes assembly significantly easier. |
Here's what we think about it
The Shimano Deore XT FC-M8120 is an absolute top choice for ambitious trail riders who want to save weight while requiring maximum stability. The crankset impresses with its lightweight design and robust construction. Riders praise the extremely smooth and reliable power transfer. One enthusiastic user comments, "The chain retention is incredible. No matter how steep or rocky it gets, the chain stays exactly where it should." The quiet operation and effortless shifting performance, even on technical sections, are particularly impressive. "After the upgrade, I immediately noticed how much smoother and more efficient my drivetrain was." The investment easily pays off in terms of durability and performance.
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