Shimano CS-R7100 Sprocket - 11T C - Built in Spacer Type
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Product Information
Full details
The Shimano CS-R7100 11T C sprocket is designed for cyclists using the 12-speed 105 R7100 drivetrain who need a reliable, high-precision replacement part for their cassette. It offers seamless shifting performance and original equipment quality, though it is specifically engineered for this series and may not be compatible with older 11-speed systems or non-Shimano cassettes.
All features
| Model Part Number | PL-Y0RR9801T-4550170819064 |
|---|---|
| Brand | SHIMANO |
Extended Product Information
FAQs
Is this compatible with 11-speed 105 groupsets?
No, this sprocket is specifically designed for the 12-speed CS-R7100 series cassette.
Does it come with a lockring?
No, the lockring is typically sold separately or is reused from your existing cassette setup.
What tools do I need for installation?
You will need a cassette lockring tool and an adjustable wrench or a dedicated handle for the lockring tool.
Can I use this on a mountain bike cassette?
No, this is a road-specific sprocket for the R7100 12-speed series.
Why is the spacer built-in?
The built-in spacer ensures precise, fixed spacing to maintain the narrow tolerances required for 12-speed shifting.
Troubleshooting
Shifting hesitation in the 11T gear
Check that the cassette lockring is tightened to the correct torque and that the derailleur hanger is straight.
Excessive noise while pedaling in the highest gear
Inspect the chain for wear using a chain checker; a worn chain on a new sprocket will cause premature noise and wear.
Sprocket feels loose after installation
Verify that the splines are fully seated and the cassette lockring is fully engaged.
Pros and Cons
Pros
- Original equipment manufacturer quality
- Easy installation due to integrated spacer design
- Maintains crisp shifting performance
- Durable construction for long-term reliability
Cons
- Specific to the 12-speed CS-R7100 series
- Not backward compatible with 11-speed cassettes
- Requires proper lockring tool for installation
Setup, Compatibility & Care
To install this sprocket, you must remove the cassette lockring using a standard Shimano-compatible lockring tool. Ensure the splines are aligned correctly before tightening to the manufacturer's specified torque. This part is strictly compatible with the Shimano CS-R7100 12-speed cassette. To maximize the lifespan of your drivetrain, keep the cassette clean of debris and grime, and regularly apply a high-quality bicycle chain lubricant to reduce friction between the sprocket teeth and the chain rollers.