Installing the Duluth Cycle Advanced Chain Tensioner is straightforward and takes approximately 15-20 minutes. Follow these steps for optimal performance.
Tools You'll Need
- 10mm wrench or socket
- Allen key set
- Clean rag
Installation Steps
Step 1: Position the Tensioner
Mount the tensioner on your bike's chainstay (the lower frame tube running from the pedals to the rear wheel). Position it so the tensioner wheel contacts the bottom side of the chain between the engine sprocket and rear wheel sprocket.
Step 2: Secure the Mounting Bracket
Tighten the mounting clamp firmly to the chainstay. Important: To prevent the tensioner from rotating toward your wheel during operation, ensure the clamp is extremely tight. Some riders wrap a small piece of rubber (like an old inner tube) around the frame first for extra grip.
Step 3: Adjust Chain Tension
The spring-loaded mechanism automatically maintains tension, but you should verify:
- The chain has approximately ½ inch of play when pressed at the midpoint
- The tensioner wheel spins freely
- The chain runs straight without rubbing
Step 4: Test Before Riding
- Rotate the rear wheel by hand and watch the chain travel
- Listen for any unusual sounds
- Verify the tensioner doesn't contact spokes at any point
Pro Tips
- Chain alignment matters: Ensure your rear sprocket and engine sprocket are properly aligned before tensioner installation
- Check after first ride: Re-verify tightness after your first 10-15 minutes of riding
- Regular inspection: Periodically check that mounting bolts remain secure