Product Features

Explanation

Shimano XT SM-CRM85 Chainring – Direct Mount – 12-Speed ​​Compatible

Maximum chain retention and quiet drivetrain performance for XC, Trail and Enduro riding!

Part of Shimano's legendary DEORE XT M8100 series, the SM-CRM85 sprocket is a top-tier Direct Mount chainring designed for 1x12 systems, offering lightweight, rigidity, and excellent chain retention.
It is fully compatible with FC-M8100-1, FC-M8120-1 and FC-M8130-1 connecting rods.

Thanks to the new generation Dynamic Chain Engagement+ tread profile, the chain provides better grip in all conditions, minimizes the risk of chain detachment on descents, and offers a quiet, smooth ride even on bumpy terrain.


Key Advantages

✔ Dynamic Chain Engagement+ – Superior Chain Holding Technology

  • Shimano's high-precision tread profile, specifically developed for 1x MTB systems.

  • Narrow-wide design provides maximum grip on the upper part of the chain.

  • Controlled chain release in the lower section → quieter and more efficient pedaling.

✔ Direct Mount – Quick Assembly & Lighter Design

  • More rigid structure compared to classic 4-arm connections.

  • Chain sprocket change with a single wrench.

  • Variants compatible with boost and non-boost cranks.

✔ XT Level Durability

  • Wear-resistant special aluminum processing.

  • Suitable for all terrain models from XC to Enduro.

  • Fully compatible with 12-speed CN-M8100 chain.


Technical Specifications

Feature Explanation
Area of ​​Use MTB – XC, Trail, Enduro
Group Shimano Deore XT M8100
Model SM-CRM85
Compatible Chain CN-M8100 – 12 Speed
Mounting Type Direct Mount
Compatible Crank Models FC-M8100-1 / FC-M8120-1 / FC-M8130-1
Gear Options 28T, 30T, 32T, 34T, 36T
Material Aluminum
Weight ~115 g (32T)
Gear Structure Dynamic Chain Engagement+

Technology: Dynamic Chain Engagement+

  • Increases chain holding capacity in 1x systems.

  • The narrow-wide tooth pattern keeps the chain's position stable.

  • It provides quiet and smooth power transfer even when pedaling under load on uneven surfaces.

  • It reduces chain wear and extends tooth life.

This technology is the main reason why XT has been the "standard of reliability" in the MTB world for years.


What's in the box?

  • 1 × Shimano XT SM-CRM85 Direct Mount Chainring (1x12 compatible)


Why XT SM-CRM85?

✔ The most efficient chainring for 1x12 XT systems.
✔ Quiet driving – low noise & high efficiency
✔ Advanced tooth profile that minimizes chain slippage.
✔ XT level lightness + durability
✔ Reliable performance even in the most challenging terrain conditions

100% Originality Guarantee

All our products are 100% original and are offered with quality and assurance. As Uğur Bicycle, we only deliver products that we procure from reliable and authorized suppliers and that we distribute ourselves. Shop with peace of mind, pedal to quality!

Free Shipping and Free Returns

Frequently Asked Questions

📌 When will my order be shipped?

Your orders will be delivered to cargo within 1-2 business days . This period may vary depending on the density during campaign periods.

📌 Which Cargo Company Do You Work With?

Shipments are made within Türkiye with Domestic Cargo. International shipments are sent with any of the companies DHL - FEDEX - TNT.

📌 How can I track my order?

When your order is shipped, the tracking number is shared via e-mail and SMS. You can track your order on the cargo company's website with this number.

📌 How can I return and exchange a product?

You can return the products within 14 days , unused and in their original packaging. You can review our return policy for detailed return procedures.

📌 When will I be refunded for the product I returned?

Once your return is approved, your payment will be refunded within 3-7 business days , depending on the payment method you used.

📌 Do your products have a warranty?

Yes! All products on sale are under manufacturer or distributor warranty . You can check the product descriptions for warranty period and conditions.

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