
Shimano XT SM-CRM85 Chainring | DM | 1x12-speed | FC-M8100-1/8120-1/8130-1
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Shimano
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53.00€
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November 5 – November 13
Delivery to home
November 6 – November 14
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November 6 – November 14
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5.30€ x 10 mo.
Shimano XT SM-CRM85 Chainring | DM | 1x12-speed | FC-M8100-1/8120-1/8130-1

Shimano Deore XT SM-CRM85 chainring 1x12 (Direct Mount)
Shimano Deore XT SM-CRM85 is a high-end Direct Mount chainring designed for Deore XT 1x12 drivetrains. It is engineered to keep the chain securely in place even on rough terrain, while delivering smooth, efficient and quiet performance. The Dynamic Chain Engagement+ tooth profile improves chain engagement, reduces chain bounce, and helps extend the service life of both the chain and the chainring.
Key features:
- For 1x12 drivetrains: compatible with Shimano Deore XT cranksets FC-M8100-1, FC-M8120-1 and FC-M8130-1.
- Direct Mount fitting:quick, secure installation and convenient chainring replacement.
- Dynamic Chain Engagement+: special tooth profile ensures better chain retention and a smoother pedalling feel.
- Reliable chain stability: reduces the risk of chain drop when riding over roots, rocks or mud.
- Smooth and quiet operation:optimized design for reduced noise and more efficient power transfer.
- Durability: improved chain retention reduces wear and friction.
- High-quality materials:anodized aluminium, CFRP (carbon fiber reinforced polymer) and steel teeth.
| Bolt Circle Diameter (BCD) | Direct Mount |
| Category | MTB |
| Mounting | 4-arm |
| Shifting | 12 |
| Teeth | 30T, 32T, 34T, 36T |
| Part | XT M8100 |
| Material | Aluminium |
| Weight (g) | - |
Shimano XT chainrings are designed for mountain bikes (MTB) and active off-road riding. They are built to deliver reliable drivetrain performance and stable chain retention across different trails and terrain conditions.
Shimano XT chainrings are compatible with Shimano XT MTB drivetrain systems, most commonly in 1x11, 2x11, 1x12, or 2x12 configurations.
Yes, Shimano XT chainrings are a great choice for everyday MTB rides, training sessions, and longer adventures. They offer an excellent balance of durability and reliable performance, even in off-road conditions.
Compared to Deore and SLX, XT chainrings typically offer a more refined performance-to-weight balance and improved chain control. XT is generally considered a step above mid-range MTB components in terms of overall performance and efficiency.
When choosing XT chainrings, it’s important to consider the number of speeds, compatibility with your crankset, and your preferred chainring setup (1x or 2x). Exact specifications are listed on each model page to help you select the correct option.
Product images in our online store are for illustrative purposes only. We strive to represent our products as accurately as possible, but their actual appearance may differ slightly from the images shown.
Differences may occur due to changes made by the manufacturer to the design, components or colours, as well as variations in screen settings.
Before purchasing, we recommend reviewing the product description and technical specifications. If you have any questions about the product's appearance or components, please contact us – we will be happy to provide additional information.
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