Shimano Chainring - 22T - FC-M660
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eBayShimano SLX FC-M660 / Deore FC-M617 22 Teeth Chainring Y1KF22000 - Black
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Shimano SLX FC-M660 22T Chainring - 3x9 speed - 64mm BCD - Y1KF22000 M627, M677Free delivery in 1–3 days£9.49Visit shop →
Y1KF22000 Shimano SLX FC-M660 Bottom Chainring 22t 64 BCD 3x9 SpeedFree delivery in 1–3 days£9.99Visit shop →
Product Information
Full details
The Shimano 22T chainring (FC-M660) is designed for mountain bike and ATB riders who need a reliable, high-performance replacement for their 9-speed drivetrain. It provides excellent shifting precision and durability for demanding off-road conditions, though it is specifically optimized for older Shimano SLX and T661 series cranksets, limiting its use on newer, wider-range drivetrains.
All features
| Model Part Number | FC-M660-22T |
|---|---|
| Brand | SHIMANO |
Extended Product Information
FAQs
Is this chainring compatible with my 10-speed bike?
No, this is designed specifically for 9-speed drivetrain systems.
Does this chainring include the mounting bolts?
No, it is a standalone replacement chainring; please reuse your existing chainring bolts.
Can I use this on a non-Shimano crankset?
It is optimized for Shimano FC-M660, FC-T661, and FC-M665; performance may vary or not fit at all on other brands.
How do I know if my chainring needs replacing?
If the teeth appear 'hooked,' pointed, or thin, or if you experience frequent chain slippage, it is time for a replacement.
What is the tooth count?
This is a 22-tooth chainring, intended for the innermost position on a triple crankset.
Troubleshooting
Chain skipping or jumping under load
Check for chain wear; if the chain is also worn, replace both the chain and the chainring simultaneously for optimal mesh.
Poor shifting between front rings
Ensure the chainring orientation is correct and adjust the front derailleur high/low limit screws to account for any slight alignment variations.
Pros and Cons
Pros
- Ensures factory-spec shifting performance
- High-durability metal construction
- Essential for restoring older 9-speed mountain bikes
- Reliable performance in mud and grit
Cons
- Not compatible with 10, 11, or 12-speed systems
- Requires specific 4-arm crankset bolt pattern
- Replacement can require specialized crank removal tools
Setup, Compatibility & Care
To install this chainring, you will need a set of hex keys and potentially a crank puller if the crankset must be removed to access the inner ring bolts. Ensure the chainring is mounted with the flat side facing the crank arm and the ramped/shaped teeth oriented toward the chain. Keep the chainring clean by wiping off excess grit after muddy rides and applying a high-quality bicycle chain lubricant to reduce wear on the teeth. Regularly check the mounting bolts for tightness to prevent play during high-torque pedaling.