Shimano CR-EM800 Chainring - 32T - 55mm
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eBayNEW Shimano CR-EM800 12-Speed 32T 55mm Genuine Bicycle Bike Chainring - Black
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Product Information
Full details
The Shimano CR-EM800 12-Speed chainring is designed for mountain bikers seeking high-durability performance and seamless shifting within e-bike drivetrains. By leveraging HYPERGLIDE+ and Dynamic Chain Engagement (DCE) technologies, this 32T chainring offers reliable power transfer and exceptional chain retention on rough terrain, though it is specifically optimized for a 55 mm chain line, which may limit its compatibility with non-Boost standard frame geometries.
All features
| Model Part Number | PL-ICREM800A2XL-4550170229610 |
|---|---|
| Brand | SHIMANO |
Extended Product Information
FAQs
Is this chainring compatible with non-e-bike drivetrains?
While it fits the physical interface, it is specifically designed for the high-torque requirements and chain lines of Shimano e-bike systems.
Does this chainring include the lock ring?
No, the CR-EM800 is sold as a standalone chainring and does not include the fixing lock nut.
Can I use this with an 11-speed chain?
No, this chainring is specifically engineered for Shimano 12-speed chains to ensure optimal chain engagement and performance.
What is the tooth count for this specific model?
This model features 32 teeth, which is a common gear ratio for balancing climbing ability and top-end speed on e-MTBs.
Is a chain guard necessary?
The chainring is designed to function without one, but you may install an aftermarket bash guard if your riding style requires extra impact protection for the chainring.
Troubleshooting
Chain drops frequently on rough terrain
Verify that your chain is the correct length and that the derailleur clutch is engaged. Ensure the chain line is correctly set to 55 mm.
Excessive noise during shifting
Check that the cassette and chain are also compatible 12-speed components and that the derailleur hanger is properly aligned.
Difficulty installing the chainring
Ensure you are using the correct Shimano-compatible direct-mount tool and that the splines are free of debris before tightening the lock ring.
Pros and Cons
Pros
- Superior durability due to steel tooth construction
- Excellent chain retention on rough, technical terrain
- Smooth and fast shifting performance under power
- Optimized for high-torque e-bike motor output
Cons
- Restricted to a 55 mm chain line setup
- Chain guard is not included
- Fixing lock nut must be sourced separately
Setup, Compatibility & Care
Installation of the CR-EM800 requires a standard Shimano lock ring tool. Ensure that your crankset is compatible with the Shimano direct-mount interface. Because this part does not include a fixing lock nut, you must retain your existing hardware or purchase a compatible unit separately. For routine maintenance, keep the drivetrain clean from grit and grime, as abrasive mud can accelerate wear on both the chain and the steel teeth. When checking for wear, monitor the chain stretch; replacing your chain at the recommended intervals will significantly extend the life of the CR-EM800 chainring.