The PC-NX [paid link] chain is a durable and high-performing chain designed for smooth shifting and long-lasting performance on road bikes. Proper installation, adjustment, and maintenance are critical to ensuring it runs efficiently and does not prematurely wear out your drivetrain components.
In this guide, we’ll cover everything you need to know about the PC-NX [paid link] chain, including step-by-step installation, precise tension adjustment, and essential maintenance tips. Whether you’re setting up a new chain or troubleshooting performance issues, this article will provide expert insights to keep your drivetrain in top shape.
Tools Required [paid links]
Before beginning the installation, ensure you have the necessary tools:
- Chain breaker tool
- Quick-link pliers (if applicable)
- Chain wear checker
- Allen Keys
- Torque wrench (for precise tightening)
- 5mm and 6mm Allen keys [paid link]
- Degreaser and chain lubricant
- Clean rags and a brush
Installing the PC-NX Chain
Step 1: Checking Chain Length
The correct chain length is crucial for smooth shifting and drivetrain longevity. Follow these steps to determine the optimal length:
- Wrap the Chain Around the Largest Cogs
- Place the chain over the largest front chainring and the largest rear cog, bypassing the derailleur.
- Add two full links (one inner and one outer link) to the length before cutting the chain.
- Verify with the Rear Derailleur
- Run the chain through the derailleur and check its tension.
- The derailleur should have some movement in the largest cog and not be fully stretched.
Step 2: Cutting the Chain
- Using a chain breaker tool, carefully remove any excess links.
- Ensure that the cut is clean and that the pin does not protrude.
Step 3: Connecting the Chain
- For Quick-Link Chains:
- Insert the quick link into both ends of the chain.
- Rotate the pedals backward to position the link on the upper part of the drivetrain.
- Apply pressure on the pedals to snap the quick link into place.
- For Standard Pin Chains:
- Use the chain breaker tool to insert a new pin securely.
- Ensure the pin sits flush with the chain’s outer plates.
Adjusting the PC-NX Chain for Optimal Performance
Ensuring Proper Chain Tension
- On a geared bike, the rear derailleur manages chain tension. However, excessive slack or tightness can cause shifting problems.
- Shift to the smallest chainring and the smallest cog to check for proper tension.
- If the derailleur cage appears too slack or overextended, the chain length needs adjustment.
Fine-Tuning Shifting Performance
- Check Rear Derailleur Alignment
- If shifting feels slow or noisy, ensure the derailleur hanger is straight.
- Misalignment can cause inconsistent shifting and excess wear.
- B-Tension Adjustment
- The B-tension screw determines the gap between the top derailleur pulley and the cassette.
- Adjust this screw to fine-tune chain engagement on the cassette.
- Limit Screw Settings
- Ensure the high and low limit screws prevent the chain from shifting past the largest or smallest cogs.
- Incorrect settings can cause the chain to derail.
Maintaining the PC-NX Chain
Cleaning the Chain
- Frequency: Clean every 100-200 miles or after riding in wet conditions.
- Method: Use a degreaser and a brush to remove dirt and grime.
- Drying: Wipe the chain thoroughly with a clean rag before applying lubricant.
Lubricating the Chain
- Use a high-quality chain lubricant suitable for road conditions.
- Apply a small drop of lubricant to each chain link while backpedaling.
- Wipe off excess lube to prevent dirt buildup.
Checking for Wear and Replacing the Chain
- Use a chain wear checker to measure elongation.
- Replace the PC-NX [paid link] chain if wear exceeds 0.5% for 11-speed chains or 0.75% for 10-speed and below.
- A worn chain can damage the cassette and chainrings, leading to costly replacements.
Troubleshooting Common Issues
1. Chain Skipping Under Load
Cause: Chain wear or improper installation
Solution: Check for chain stretch and replace if necessary. Ensure the cassette is not excessively worn.
2. Noisy Shifting
Cause: Dirty chain, misaligned derailleur, or incorrect B-tension
Solution: Clean and lubricate the chain, realign the derailleur, and adjust B-tension.
3. Chain Drops Off Chainrings
Cause: Loose chain, worn chainrings, or limit screw misalignment
Solution: Check chain length, inspect chainring teeth, and readjust limit screws.
Comparison: PC-NX Chain vs. Competing Models
The PC-NX chain offers durability and smooth shifting but differs from other models in several key areas:
| Feature | PC-NX Chain | Higher-End Model (e.g., PC-XX1 [paid link]) |
|---|---|---|
| Weight | Slightly heavier | Lighter for better efficiency |
| Coating | Standard plating | Advanced anti-friction coating |
| Durability | High | Higher with special coatings |
| Price | Affordable | Premium pricing |
For cyclists looking for a budget-friendly, reliable chain, the PC-NX chain is an excellent choice. However, racers and performance riders may prefer a higher-end option with better efficiency.
Final Thoughts
The PC-NX chain is a solid, reliable choice for road cyclists who need durability and smooth performance. Proper installation, regular maintenance, and timely replacements will ensure a long-lasting drivetrain.
By following this guide, you can maximize your PC-NX chain’s lifespan and ensure a smooth, efficient ride.