How to Replace Rear Derailleur on Mountain Bike
Mountain biking is an exhilarating activity that requires regular maintenance to ensure a smooth and enjoyable ride. One of the most common tasks mountain bikers face is replacing the rear derailleur. The rear derailleur is a crucial component that shifts the chain between the different gears, allowing you to tackle various terrains with ease. In this article, we will guide you through the process of replacing the rear derailleur on your mountain bike.
Materials Needed:
– New rear derailleur
– Hex wrenches (5mm, 6mm, and 8mm)
– Gear cable and housing
– Cable cutters
– Cable clamp
– Lubricant
– Allen wrenches (various sizes)
– Pliers
– Screwdriver
Step 1: Preparation
Before you begin, make sure your bike is on a stable surface and the brakes are engaged. Remove the rear wheel to gain access to the derailleur. Loosen the quick-release skewer and remove the wheel.
Step 2: Removing the Old Derailleur
Using a 5mm hex wrench, remove the derailleur hanger bolt and take off the old derailleur. Be sure to keep track of any spacers or washers that were in place.
Step 3: Installing the New Derailleur
Attach the new derailleur to the derailleur hanger using the 5mm hex wrench. Make sure it is properly aligned with the chain and gears. If necessary, adjust the derailleur’s limit screws to ensure proper shifting.
Step 4: Installing the Gear Cable
Slide the new gear cable through the housing and attach it to the derailleur. Use the cable clamp to secure the cable in place. Trim the excess cable with cable cutters and use the cable clamp to secure the end.
Step 5: Adjusting the Rear Derailleur
Pedal backward to shift the chain to the largest cog. Adjust the high-limit screw on the derailleur to ensure the chain is properly tensioned. Repeat the process for the low-limit screw, shifting the chain to the smallest cog.
Step 6: Reinstalling the Rear Wheel
Place the rear wheel back on the bike and secure the quick-release skewer. Ensure the wheel is properly aligned and the brakes are engaged.
Step 7: Final Adjustments
Take a test ride to ensure the new rear derailleur is shifting smoothly. If necessary, adjust the derailleur’s limit screws and cable tension to achieve optimal performance.
Conclusion
Replacing the rear derailleur on your mountain bike is a relatively straightforward process that can be completed with basic tools. By following these steps, you can ensure your bike is in top condition for your next adventure.
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网友评论：
1. Great guide! I replaced my rear derailleur with this info and it worked perfectly.
2. Thanks for the step-by-step instructions. I saved a lot of money by doing it myself.
3. I had no idea how to replace a rear derailleur, but this article made it easy.
4. I followed these steps and it took me less than an hour to replace my derailleur.
5. Excellent article! I’m a beginner and this made the process less intimidating.
6. I appreciate the detailed instructions. I replaced my derailleur and now I feel more confident.
7. This was a lifesaver! My derailleur broke on a ride and I was able to fix it with this guide.
8. Thanks for the helpful tips. I replaced my derailleur and now my bike shifts like new.
9. I followed these steps and it was a breeze. I’m glad I didn’t have to take it to a shop.
10. I replaced my rear derailleur using this guide and now I understand how it works.
11. I was able to replace my derailleur in no time with this article. Thanks!
12. This guide was very informative. I learned a lot about my bike’s rear derailleur.
13. I’m a mountain biker and this article helped me fix my bike in the middle of a ride.
14. I replaced my derailleur using these steps and now my bike feels like new.
15. I’m impressed with the clear instructions in this article. Thanks for the help!
16. I followed these steps and it was a success. I saved money and learned a new skill.
17. This guide made replacing my rear derailleur a piece of cake. Highly recommend!
18. I replaced my derailleur and now I can tackle any terrain with confidence.
19. I appreciate the step-by-step instructions. This article made the process easy.
20. Thanks for the great guide! I replaced my rear derailleur and now my bike is shifting smoothly.
