How Do You Remove a Rear Derailleur Pulley?

Removing a rear derailleur pulley is a simple process that involves a few steps:

Tools Needed:

• A 4mm Allen wrench: Most rear derailleur pulleys use a 4mm Allen bolt.
• A small flathead screwdriver: You might need this to pry off the pulley cage if it's stuck.
• A rag or cloth: This will help to catch any dirt or debris.

Steps:

1. Shift to the smallest cog: This will make it easier to access the pulley.
2. Locate the Allen bolt: The Allen bolt is usually located on the inside of the pulley cage.
3. Loosen the Allen bolt: Use the 4mm Allen wrench to loosen the bolt.
4. Remove the pulley: Once the bolt is loose, carefully pull the pulley off the cage.
5. Clean the pulley and cage: Use a rag or cloth to clean any dirt or debris off the pulley and cage.
6. Replace the pulley: If you're replacing the pulley, install the new pulley in the same way you removed the old one.
7. Tighten the Allen bolt: Use the Allen wrench to tighten the bolt until it's snug, but don't overtighten it.

Tips:

• Use a lubricant: Apply a small amount of lubricant to the pulley bearing to help it spin smoothly.
• Inspect the pulley: Before reinstalling the pulley, check it for wear and tear. If it's damaged, replace it.
• Don't overtighten the Allen bolt: Overtightening the bolt can damage the pulley cage.