The Shimano CS-5700 [paid link] cassette, part of the 105 10-speed groupset, is known for its reliability and smooth gear transitions. However, even high-quality components can develop issues over time, especially if not installed or maintained correctly. If you’re experiencing skipping, delayed shifts, or drivetrain noise, understanding how to troubleshoot your CS-5700 [paid link] can restore peak performance. This guide will cover the most common problems and provide structured, mechanic-level [paid link] instructions for resolving them.
Understanding the CS-5700 Cassette Design
The Shimano CS-5700 [paid link] features a nickel-plated steel construction and Hyperglide (HG) sprocket design, optimized for smooth and efficient gear changes. It typically comes in 11-25T, 11-28T, and 12-27T configurations, using a standard Shimano 10-speed freehub body. Despite its durability, shifting performance can degrade if the cassette or related components are compromised.
Common Shifting Issues with the CS-5700
Several factors can affect cassette performance. Here are the most frequently encountered issues:
1. Chain Skipping Under Load
One of the most common complaints involves the chain skipping during high-torque pedaling. This can stem from:
- Worn cassette teeth, especially on frequently used cogs.
- Chain elongation that mismatches with the sprocket profile.
- Improper installation torque on the lockring.
If skipping is intermittent or specific to certain gears, inspect both the cassette and chain for wear and replace if necessary.
2. Hesitant or Delayed Shifting
If shifts lag or feel sluggish, it may be due to:
- Misadjusted rear derailleur indexing.
- Contaminated or stretched shift cables affecting actuation.
- A bent derailleur hanger compromising gear alignment.
To resolve this, first verify derailleur alignment with a hanger alignment gauge. Then re-index the rear derailleur by adjusting the barrel adjuster in quarter-turn increments until shifting becomes crisp across all cogs.
3. Inconsistent Shifting Across the Cassette
When gears shift unpredictably—sometimes overshooting or undershooting—it often signals drivetrain contamination or improper cable tension.
- Remove dirt and grime from cassette, chain, and jockey wheels.
- Check for frayed or corroded shift cables.
- Lubricate moving parts and ensure cable housing is seated properly.
Regular cleaning and lubrication can drastically reduce inconsistent shifting, especially if you frequently ride in wet or dusty conditions.
Cassette Installation Errors Impacting Shifting
Poor installation is a common cause of shifting anomalies. Here are installation-related issues to check:
Incorrect Spacer Placement
The CS-5700 cassette requires specific spacers depending on hub compatibility. Failing to install the correct 1.85 mm spacer on 11-speed freehub bodies will cause poor alignment, leading to inconsistent shifting or chain drop.
Improper Torque on Lockring
The cassette lockring should be torqued to 40 Nm. Under-torquing may result in loose sprockets, while over-torquing could damage the freehub body. Always use a torque wrench [paid link] for precision.
Chain and Drivetrain Compatibility Issues
Pairing the CS-5700 with a mismatched chain or derailleur can cause subtle but persistent shifting issues.
- Use a Shimano 10-speed chain (e.g., CN-5701 [paid link]) for best compatibility.
- Avoid mixing 10-speed and 11-speed components unless the manufacturer specifically allows it.
- Check derailleur capacity and hanger length to ensure they match your cassette size.
Diagnosing Shifting Problems: Step-by-Step
To systematically troubleshoot your CS-5700 cassette:
- Visually inspect the cassette for worn or damaged teeth.
- Check chain wear with a chain checker tool. Replace if stretched beyond 0.75%.
- Inspect shift cables for corrosion or slack.
- Align the derailleur hanger if shifting is inconsistent across the range.
- Clean and lubricate the drivetrain thoroughly.
- Re-index the derailleur, starting with the barrel adjuster.
Preventing Future Shifting Issues
Preventive maintenance is key. Here’s how to minimize future problems:
- Clean the drivetrain every 200-300 km, more often in muddy or wet conditions.
- Replace the chain every 2,000–3,000 km to prevent accelerated cassette wear.
- Check cassette wear every third chain replacement.
- Avoid cross-chaining to extend cassette lifespan.
Frequently Asked Questions (FAQs)
Q1: Why does my CS-5700 skip only in one gear?
A single cog may be worn out or contaminated. Clean it thoroughly and check for worn teeth or a damaged sprocket.
Q2: Can I use a non-Shimano chain with the CS-5700?
While other brands may work, Shimano 10-speed chains are optimized for the HG cassette design and yield the best shifting performance.
Q3: My new CS-5700 cassette skips—is it defective?
It’s likely an installation error. Double-check spacer use, lockring torque, and chain compatibility.
Q4: Do I need a special freehub for the CS-5700?
No, it fits standard Shimano 10-speed freehubs. For 11-speed hubs, a 1.85 mm spacer is required.
Q5: Should I lubricate my cassette directly?
No, lubricate the chain, not the cassette. Excess oil on the cassette can attract debris and degrade shifting.
Q6: What derailleur works best with the CS-5700?
Shimano 105 RD-5700 [paid link] or other compatible 10-speed Shimano road derailleurs provide optimal results.
Conclusion
Shifting issues with the Shimano CS-5700 cassette can usually be traced back to wear, contamination, improper setup, or incompatible components. By methodically inspecting your drivetrain, ensuring correct installation, and performing regular maintenance, you can keep your CS-5700 operating smoothly and efficiently. Whether you’re a weekend rider or a daily commuter, understanding how to troubleshoot these common problems ensures long-term performance and a more enjoyable ride.