Shimano Deore XT Chainring - 28T - SMCRM86Z8
Best current price£58.49from Tweeks Cycles
Best offers
Shopping.co.uk recommended and popular offers
Tweeks Cycles£58.49Visit shop Shimano SM-CRM86 Single Chainring For XT M8200 - 28T
Visit shopTweeks Cycles£58.49Visit shop All Offers
2 offers from £58.49 - £70.52
View price history by clicking the chart icon.
Tweeks CyclesShimano SM-CRM86 Single Chainring For XT M8200 - 28T
Free delivery in 1–3 days
£58.49
Visit shop
eBayShimano Deore XT SM-CRM86 Single chainring for XT M8200, 28T
Free delivery in 1–3 days
£70.52
Visit shop
Used Offer
1 offer from £55.27
View price history by clicking the chart icon.
eBayShimano SM-CRM86 Single Chainring For XT M8200 (28 Teeth) - Direct Mount, Black
Free delivery in 1–3 days
£55.27
Visit shop
Product Information
Full details
The Shimano Deore XT SM-CRM86 28T chainring is engineered for dedicated XC, trail, and enduro riders who require reliable power transfer and precision shifting within their 12-speed drivetrain. By utilizing advanced Dynamic Chain Engagement (DCE) technology, this chainring provides superior chain retention on technical terrain, though riders must ensure they are using a compatible Shimano HG 12-speed chain to avoid premature wear or shifting performance issues.
All features
| Model Part Number | SMCRM86Z8 |
|---|---|
| Brand | Shimano Deore XT |
Extended Product Information
FAQs
Is this chainring compatible with 11-speed chains?
No, this chainring is specifically designed for the tighter tolerances of Shimano 12-speed HG chains.
Can I use this with a non-Shimano crankset?
This chainring is designed for the Shimano direct-mount interface. It will not fit cranksets with different mounting standards.
Does this chainring require a chain guide?
The DCE tooth profile provides excellent retention; while a guide is optional for most, riders on extremely aggressive enduro terrain may still choose to run a lightweight upper guide.
How do I know if my chainring is worn out?
Look for teeth that appear pointed or 'shark-finned' rather than flat-topped, or if the chain begins to skip under heavy load.
Why is it only a 28T size?
The 28T sizing is optimized for riders prioritizing low-end climbing torque, providing a more versatile gear range for steep mountain riding.
Troubleshooting
Increased drivetrain noise
Clean the chainring and chain thoroughly, then apply a high-quality bicycle-specific lubricant.
Chain dropping frequently
Verify that your chain is a genuine Shimano HG 12-speed chain and check that the derailleur clutch is engaged.
Grinding sensation while pedaling
Check for debris wedged between the chainring and the crank arm or inspect the chain for stiff links.
Pros and Cons
Pros
- Excellent chain retention on technical descents
- Lightweight direct-mount configuration
- High stiffness for efficient pedaling
- Optimized for smooth 12-speed shifting
- Reduced friction and noise
Cons
- Specific to Shimano HG 12-speed chains
- Requires direct-mount compatible crankset
- Limited to 28T configuration
Setup, Compatibility & Care
To ensure optimal performance, the SM-CRM86 must be installed on a compatible Shimano Deore XT M8200 direct-mount crankset. Use a torque-wrench to secure the lock ring to the manufacturer's specified tension to prevent loosening during high-torque events.
Compatibility Requirements:
- Drivetrain: Shimano 12-speed
- Chain: Must be used with Shimano HG 12-speed chains
- Mounting: Shimano Direct-Mount
Maintenance Tips:
- Regularly clean the chainring teeth with a biodegradable degreaser to remove grit that accelerates wear.
- Periodically inspect the narrow-wide teeth for signs of 'hooking' or wear.
- Replace the chain promptly when it reaches 0.5% wear to maximize the longevity of the chainring teeth.