The Shimano CN-5701 [paid link] chain is part of Shimano’s 10-speed road drivetrain lineup, specifically tailored for high performance within the 105 group. While generally reliable and durable, riders may experience common issues if the chain is incorrectly installed, maintained poorly, or has compatibility problems. This guide offers a detailed breakdown of how to troubleshoot the most frequent problems encountered with the CN-5701 [paid link] chain and restore smooth drivetrain operation.
Understanding the CN-5701 Chain Design
Before tackling specific issues, it’s important to understand the technical specifications of the CN-5701 [paid link] chain. The chain features a directional design with asymmetrical plates for optimized front and rear shifting. It is specifically engineered to work with Shimano 10-speed drivetrains, including the 105, Ultegra, and Dura-Ace series from the same generation. Using the chain in the wrong orientation or pairing it with incompatible drivetrain components can result in a host of performance problems.
Diagnosing Skipping and Inconsistent Shifting
One of the most reported issues with the Shimano CN-5701 chain is chain skipping, especially under load or during gear transitions. Skipping may be due to excessive chain wear, a poorly matched cassette, or incorrect chain length.
Examine the chain for elongation using a chain wear checker. The CN-5701 chain typically begins to show performance degradation once wear reaches 0.75% elongation. If worn, replacing the chain along with the cassette is often necessary to restore proper engagement.
Another critical aspect is ensuring the correct chain length. A chain that is too long or too short will compromise shifting quality and may introduce skipping. Use the large-large gear method (without going through the derailleur) to establish appropriate length, and always connect the chain with the directional arrow pointing outward.
Addressing Chain Noise and Vibration
Unusual noise from the chain can stem from several sources, often related to cleanliness, lubrication, or misalignment. The CN-5701’s directional design means that an incorrect installation can lead to increased drivetrain noise. Double-check that the outer plates marked with the directional indicator face outward, away from the bike.
Regular cleaning and lubrication are also vital. A dirty or dry chain can result in rattling and grinding sounds. Use a degreaser specifically formulated for drivetrain parts, and reapply a compatible wet or dry lube [paid link] depending on your riding conditions. Avoid over-lubrication as it attracts dirt and increases friction.
Resolving Front and Rear Derailleur Compatibility Issues
The CN-5701 chain is optimized for Shimano 10-speed systems, but mixing it with components from other speeds or brands can introduce compatibility problems. If shifting feels sluggish or imprecise, verify that the cassette and chainrings are also from a 10-speed Shimano series.
Also, inspect the derailleur’s alignment and indexing. Inaccurate derailleur hanger alignment or incorrect cable tension can simulate chain-related issues. Use a derailleur alignment gauge to verify hanger straightness, and adjust cable tension incrementally to fine-tune shifting performance.