The Shimano SM-CN900-11 Quick-Link is designed for 11-speed chains, providing a convenient and tool-free method for chain connection. Proper installation, adjustment, and maintenance of the Quick-Link ensure optimal chain performance, longevity, and safe riding. This guide provides step-by-step instructions on installing, adjusting, and maintaining the Shimano SM-CN900-11 Quick-Link.
Tools Required
To install and maintain the Shimano SM-CN900-11 Quick-Link, you will need:
- Shimano TL-CN10 Quick-Link tool
- Chain wear indicator tool
- Chain pliers (for removal)
- Degreaser and clean rags
- Shimano chain lubricant
Installing the Shimano SM-CN900-11 Quick-Link
Before installation, ensure the chain is clean and properly sized for the drivetrain. A properly sized chain prevents shifting issues and excessive drivetrain wear. If the chain has been cut, both ends should terminate at inner links to allow the Quick-Link to connect properly.
Start by inserting the Quick-Link pins into the inner link plates from both sides of the chain. The arrow on the Quick-Link must face in the direction of crank rotation when viewed from the front. Misalignment or incorrect orientation may lead to premature failure.
Once inserted, apply light tension to the chain and manually bring the Quick-Link plates together. Use the Shimano TL-CN10 Quick-Link tool to securely snap the pins into place. Ensure both link plates are parallel and firmly locked to prevent unintended disengagement during riding.
Before riding, confirm the Quick-Link is fully engaged by rotating the cranks and shifting through all gears. If you are also checking your drivetrain, refer to How to Determine the Length of Your Bike Chain to ensure proper chain sizing.
Adjusting the Shimano SM-CN900-11 Quick-Link
A properly installed Quick-Link requires no additional adjustments, but chain tension and smooth movement must be checked. After installation, pedal the bike and shift through the gears to ensure the chain runs smoothly over the cassette and chainrings.
If the chain exhibits skipping or noise, inspect the Quick-Link to ensure it is fully engaged. If needed, manually apply force to both ends of the chain while the Quick-Link is in its open position to allow it to fully seat into place.
For further drivetrain optimization, consider checking Troubleshooting Common Gear Shifting Problems on Your Road Bike for additional fine-tuning steps.
Maintaining the Shimano SM-CN900-11 Quick-Link
Regular maintenance of the Shimano SM-CN900-11 Quick-Link ensures smooth chain operation and prevents premature wear. Shimano recommends checking the Quick-Link every 3,000–5,000 km or sooner if the drivetrain is exposed to mud, rain, or heavy usage.
Cleaning and Lubrication
To clean the Quick-Link, apply degreaser to a clean rag and wipe down the link plates, ensuring that dirt and grime do not accumulate in the pin area. Avoid using alkali- or acid-based solvents, as they can weaken the metal.
After cleaning, apply Shimano-approved chain lubricant to the Quick-Link and the entire chain. Allow excess lubricant to settle before wiping off any residue. A well-lubricated chain ensures smooth shifting and prevents corrosion.
Removing and Replacing the Quick-Link
Unlike some reusable quick-links, Shimano recommends replacing the SM-CN900-11 Quick-Link every time the chain is removed. Attempting to reuse an old Quick-Link increases the risk of failure, which could cause the chain to disengage mid-ride.
To remove the Quick-Link, use Shimano TL-CN10 Quick-Link pliers to compress the link plates and slide the pins out. After removal, inspect the chain for signs of elongation or damage. If chain replacement is necessary, refer to How to Replace a Stretched Chain Without Damaging Your Drivetrain for guidance.
After replacing the chain and installing a new SM-CN900-11 Quick-Link, follow the installation steps to ensure a secure fit.