Shimano FC-4703 chainring - 39T MM
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Product Information
Full details
This guide is for cyclists seeking a reliable replacement chainring for their FC-4703 crankset. The key benefit is ensuring smooth gear transitions and continued performance from your bicycle's drivetrain. A potential caveat is that this is a specific replacement part and may not be compatible with non-Shimano FC-4703 cranksets. This genuine Shimano chainring features a 39-tooth count and MM size, designed to offer durability and efficient power transfer for your cycling adventures.
All features
| Model Part Number | Y-1RD98050 |
|---|---|
| Brand | SHIMANO |
Extended Product Information
FAQs
What does '39T' mean?
'39T' refers to the number of teeth on the chainring, which is 39. This tooth count influences your gear ratios.
Is this chainring compatible with any crankset?
No, this chainring is specifically designed as a replacement part for the Shimano FC-4703 crankset only.
Do I need special tools to install this chainring?
Installation requires standard bicycle tools, including Allen keys for crank arm removal and chainring bolts. A torque wrench is recommended for proper tightening.
How often should I replace my chainring?
Chainring lifespan varies based on riding conditions and maintenance, but a visual inspection for hooked or worn teeth is the best indicator. Typically, it might be every few thousand miles, or when you replace your chain two to three times.
What is the 'MM' size designation?
The 'MM' likely refers to the bolt circle diameter (BCD) or a specific mounting standard relevant to the FC-4703 crankset. It ensures proper fitment.
Can I mix this chainring with other brands on my crankset?
While technically possible in some cases, it is strongly recommended to use chainrings from the same manufacturer and series as your crankset for optimal performance and compatibility.
Troubleshooting
Chain skipping or poor shifting
Ensure the chainring is correctly aligned and securely bolted to the crank spider. Check for chain wear, as a worn chain can cause skipping on a new or used chainring. Adjust your front derailleur.
Chain drops off the chainring
Verify that the chainring is installed correctly and that the front derailleur is properly adjusted. Ensure the chainline is straight when in the middle gear combination. Bent teeth or a worn chainring can also cause chain drops.
Unusual noise during pedaling
Check if the chainring bolts are tightened properly. Inspect the chain for lubrication and wear. Ensure no foreign debris is caught between the chainring and the crank arm or chain.
Pros and Cons
Pros
- Direct replacement for Shimano FC-4703 cranksets.
- Ensures proper gear engagement and smooth shifting.
- Genuine Shimano quality for reliability.
- Durable construction for extended use.
Cons
- Specific to FC-4703 cranksets; not a universal fit.
- Only one tooth count (39T) is available for this specific part number.
- Requires mechanical knowledge for installation or professional fitting.
Setup, Compatibility & Care
Compatibility: This chainring is a genuine Shimano replacement part specifically designed for the Shimano FC-4703 crankset. It is not designed for use with other crankset models or brands.
Installation: Installation typically involves removing the crank arm, then unbolting the old chainring from the crank spider. The new 39T chainring should be carefully aligned and bolted on using appropriate torque specifications. It is highly recommended to have this component installed by a qualified bicycle mechanic if you are not experienced with crankset maintenance.
Care: To maintain performance, regularly clean the chainring with a degreaser and a brush to remove dirt and grime. Ensure the chain is clean and lubricated. Inspect the teeth for wear; if they appear hooked or excessively worn, it's time for replacement to avoid premature drivetrain wear.