Shimano
XT CRM85 Direct Mount Chainring
Best performance upgrade for serious mountain bikers seeking drivetrain reliability.
Elevate your cycling performance with the Shimano XT CRM85 Direct Mount Chainring. Engineered for seamless integration with direct mount systems, this high-quality component ensures reliable and efficient power transfer on every ride. It embodies Shimano's dedication to durable and precise cycling hardware, being part of the trusted XT series known for exceptional performance and reliability. This chainring is designed to enhance your biking experience, offering a robust and dependable solution for your drivetrain needs, ensuring you get the most out of every pedal stroke.
$79.99
Owner Satisfaction
4.7
/ 5
Category Rank
68
/ 2100
#68 in Components
Price vs Category Average
-22%
Below average
Model Number
850
/ ISMCRMA
Who it's for
- Aggressive trail riders needing reliable chain security on rough terrain
- Performance cyclists seeking maximum stiffness for efficient power delivery
- Shimano drivetrain users wanting flawless shifting and system compatibility
Who should skip it
- Cyclists using non-Shimano cranks or seeking diverse aftermarket options
- Budget-conscious riders looking for more affordable replacement parts
- All-weather riders needing long-lasting durability in abrasive, muddy conditions
Performance breakdown
Power Transfer Efficiency
Direct mount interface minimizes flex for immediate, responsive pedal input.
Drivetrain Compatibility
Seamlessly integrates with Shimano's ecosystem for smooth, reliable shifting performance.
Build Durability
Hard-wearing construction withstands the rigors of aggressive trail riding.
Installation Simplicity
Direct mount design makes swapping rings quick and straightforward for mechanics.
Weight Optimization
Lightweight materials reduce rotational mass without sacrificing structural integrity.
Chain Retention
Precision tooth profiling keeps the chain secure over technical, bumpy terrain.
Key Specs
Model Number
ISMCRM85A0
Type
Direct Mount Chainring
Brand Compatibility
Shimano
Features
- Designed for direct mount systems
- Delivers excellent performance
- High-quality component construction
- Enables efficient power transfer
- Part of the trusted XT series
What customers say
Riders overwhelmingly praise the Shimano XT CRM85 Direct Mount Chainring for its exceptional reliability and performance. Its robust construction withstands demanding trails, ensuring consistent power transfer. The narrow wide tooth profile excels at chain retention, significantly minimizing drops even on rough terrain, which builds rider confidence. Shifting performance is consistently described as smooth and precise when integrated with compatible drivetrains, creating a refined experience. While premium priced, users find the investment justified by the superior quality and longevity provided by this high performing component. The direct mount design adds simplicity and a clean aesthetic.
Know before you buy
No, this is specifically designed for Shimano direct mount systems. It is intended for use with compatible XT-level cranksets, so please verify your specific crank model before purchasing.
Direct mount systems eliminate the need for a separate spider, which reduces weight and simplifies the installation process. It also provides a more secure interface, resulting in more efficient power transfer during hard pedaling.
While the chainring is engineered for Shimano's direct mount interface, compatibility with other drivetrain brands depends on the specific chain and cassette spacing. It is optimized for Shimano XT drivetrains to ensure the best shifting performance.
Check the model number on your existing chainring or consult your crankset's technical documentation. The CRM85 is part of the XT series, so it is best suited for riders looking to maintain the performance standards of that specific component group.
Yes, you will need a Shimano-specific lockring tool to remove and install the direct mount chainring. It is a straightforward process, but having the correct tool is essential to avoid damaging the mounting interface.
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Ready to buy?
$80