Avoid These Costly CS-5700 Cassette Mistakes That Can Wreck Your Drivetrain

The Shimano CS-5700 [paid link] 10-speed cassette is a high-performance component from the 105 series, designed for reliability and consistent shifting. However, even this mid-tier marvel can cause drivetrain problems if installed or maintained improperly. In this guide, we’ll explore the most frequent CS-5700 [paid link] cassette mistakes, how they affect your drivetrain, and what you can do to avoid them.


Improper Cassette Installation and Fitment

Incorrect installation is the root of many drivetrain issues. The CS-5700 [paid link] cassette requires precise alignment with the freehub body. Riders often overlook this due to its apparent simplicity.

When the lockring is not torqued correctly—either under-tightened or over-tightened—the cassette may shift during use. This not only results in poor shifting performance but also causes accelerated wear to both the cassette and freehub body.

Additionally, misalignment of the sprockets on the splines leads to uneven spacing, which manifests as inconsistent gear indexing. It’s crucial to ensure each cog slides fully into its designated spline orientation, particularly because the Shimano 105 series uses an asymmetrical spline pattern to prevent incorrect assembly.


Mixing Incompatible Chains or Drivetrain Components

The CS-5700 is engineered to function optimally with Shimano 10-speed chains and drivetrain parts. Pairing it with components from incompatible speed groups (such as 11-speed or 9-speed) leads to noticeable degradation in shifting performance.

Using a chain with incorrect inner width alters the engagement between the chain and cassette teeth. This can result in noisy operation, skipped gears, or chain drops—all of which place undue strain on the drivetrain. Furthermore, mismatched derailleurs or shifters may not provide the correct cable pull ratios, leading to indexing errors.

Always confirm compatibility before mixing drivetrain components. Shimano’s 10-speed components from the same series or close counterparts generally perform best when used together.


Neglecting Proper Chain and Cassette Wear Synchronization

Another frequent mistake is replacing a worn chain while leaving a moderately worn CS-5700 cassette in place—or vice versa. Because chains and cassettes wear together, mismatching wear levels leads to poor engagement, premature chain slippage, and accelerated wear on both components.

This mismatch often appears as slipping under load, especially in the rider’s most-used gears. Over time, these symptoms grow worse and can even result in complete drivetrain failure under high torque situations.

When one component is replaced, assess the wear of the other. Use chain wear tools and visual inspection of the cassette teeth for hooking or shark-fin shapes to determine the best replacement schedule.


Improper Torque and Overuse of Grease on the Lockring

The CS-5700 lockring must be torqued to 40 Nm using a compatible cassette lockring tool [paid link]. Over-torquing risks damaging the lockring threads or warping the smallest cog, while under-torquing can allow the cassette to rattle loose during riding.

Similarly, applying too much grease on the freehub splines is a surprisingly common error. While some light lubrication can prevent seizing and ease removal, excess grease attracts debris, which can increase wear between the cassette and freehub body splines. This may eventually cause rotational play and uneven cog engagement.

Apply a thin, even layer of grease—or a dedicated anti-seize compound if riding in wet conditions—only where needed.


Skipping Routine Cleaning and Maintenance

Failing to regularly clean the CS-5700 cassette results in the accumulation of grime, which interferes with smooth chain movement and causes friction-related wear. Inconsistent performance and increased drivetrain noise are usually early indicators of neglect.

A clean cassette also helps prolong the life of the chain and front chainrings. Riders often clean the chain without removing or thoroughly brushing the cassette. Over time, packed debris between the sprockets causes uneven wear patterns and imprecise shifts.

Make cassette cleaning a part of your regular maintenance cycle—ideally every 300–500 km under dry conditions, and more frequently in wet or gritty environments.


Using Low-Quality or Incorrect Cassette Tools

Using incorrect or poorly machined tools when removing or installing the CS-5700 cassette can damage the lockring or spline interfaces. This makes future removal more difficult and increases the risk of tool slippage, which may damage adjacent components like spokes or the derailleur hanger.

Invest in a high-quality cassette lockring tool [paid link] and a chain whip. Proper tools ensure secure installation and prevent component damage during removal or adjustments.


Ignoring Gear Indexing After Installation

Once the CS-5700 cassette is installed, gear indexing must be precisely adjusted. Many riders skip this step, assuming previous derailleur alignment will suffice. However, even a minor change in cassette spacing or freehub interface tolerance can lead to misaligned shifting.

Poor indexing not only degrades shifting performance but can also cause the chain to wear unevenly or jump between gears under load. Always recalibrate your rear derailleur’s cable tension and B-screw adjustment after a new cassette installation.


Conclusion

The Shimano CS-5700 cassette delivers reliable performance when correctly installed and maintained. However, common mistakes—such as poor fitment, incompatibility, neglecting wear synchronization, and incorrect torque—can undermine your drivetrain and lead to expensive repairs.

Preventing these issues starts with careful attention during installation, using compatible components, and maintaining a disciplined maintenance schedule. Following these best practices ensures smooth shifting, extended drivetrain life, and a more enjoyable riding experience.


FAQs About the Shimano CS-5700 Cassette

1. How often should I replace the CS-5700 cassette?
It depends on your riding conditions and maintenance habits, but typically after 4,000–6,000 km. Inspect teeth regularly for wear or hooking.

2. Can I use the CS-5700 cassette with an 11-speed chain?
No, the spacing and width are not compatible. Use only Shimano 10-speed chains.

3. What torque should the CS-5700 lockring be tightened to?
Use a torque wrench [paid link] to tighten the lockring to 40 Nm for secure and safe installation.

4. Do I need a spacer when installing the CS-5700 on a modern 11-speed freehub?
Yes, many 11-speed freehubs require a 1.85 mm spacer when fitting a 10-speed cassette like the CS-5700.

5. How can I tell if my cassette is worn out?
Look for sharp or hooked teeth and monitor shifting performance. Slipping or noise under load often indicates wear.

6. What cleaning method is best for the CS-5700 cassette?
Remove the cassette and clean each cog with degreaser and a brush. Rinse, dry, and reassemble with proper lubrication.