How to Adjust a Rear Derailleur – Limit Screws & Indexing

How to Adjust a Rear Derailleur – Limit Screws & Indexing

How to fix the shifting on your bike. The majority of rear shifting problems can be solved with basic adjustments to the limit screws and index setting of the rear derailleur system. In this video, we’ll show you how to properly set up and adjust your rear derailleur to eliminate rub, noise, slow shifting, and inaccessible gears.

Questions or comments? Leave them below!

See all our derailleur videos in our Derailleurs & Shifting playlist ▶︎ https://www.youtube.com/playlist?list=PLGCTGpvdT04TlNwuGy2pd_y8wt-oLfuij

Video contents:
00:00 Preliminary Info
02:14 H-Limit Screw Adjustment
06:49 Indexing Adjustment
11:33 L-Limit Screw Adjustment
13:56 B-Screw Adjustment

➤ Tools & materials used:
• SD-2 Phillips Screwdriver – http://www.parktool.com/product/2-phillips-screwdriver-sd-2
• PH-1 P-Handle Hex Wrench Set – http://www.parktool.com/product/p-handle-hex-wrench-set-ph-1
• PRS-3.2-2 Deluxe Single Arm Repair Stand – http://www.parktool.com/product/single-arm-professional-work-stand-prs-3-2-2

For a text-based walk-through of this process: http://www.parktool.com/blog/repair-help/rear-derailleur-adjustment

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➤ Fix It:
Did you know that Park Tool is the #1 resource for bicycle repair education?
• Visit our YouTube Channel: https://www.youtube.com/parktool
• Visit the Repair Help section of Parktool.com: http://www.parktool.com/blog/repair-help/
• Check out The Big Blue Book of Bicycle Repair: http://www.parktool.com/product/big-blue-book-of-bicycle-repair-3rd-edition-bbb-3

➤ About Park Tool:
Since our founding in 1963, Park Tool has been the leading name in bicycle tools. Our YouTube channel is an extension of our mission to be the ultimate resource for mechanics and riders of all skill levels. Here you will find comprehensive repair help tutorials for a wide range of components and processes, as well as troubleshooting guides, tips and tricks, and information on the latest Park Tool products.

➤ More Derailleur Repair Help:
• How a Front Derailleur Works ▶︎ https://youtu.be/yDjlRu4CnjI
• How a Rear Derailleur Works ▶︎ https://youtu.be/DQmmEvt0rxs
• How to Adjust a Front Derailleur ▶︎ https://youtu.be/ZNG7g83lI-s
• Front Derailleur – Advanced Troubleshooting ▶︎ https://youtu.be/vcc5-ry4fA0
• Rear Derailleur – Advanced Troubleshooting ▶︎ https://youtu.be/kkL1vze6M4A
• How To Align a Derailleur Hanger Using the DAG-2.2 ▶︎ https://youtu.be/tXfvW0L3iLM

50 Comments

  1. Mike N on August 6, 2019 at 12:37 am

    There are Hollywood film makers who could take lessons from these people. Is there a You Tube award?



  2. Fox Firemaker on August 6, 2019 at 12:38 am

    I’ve been riding bikes all my life and apparently have only properly adjusted my derailleur on accident.



  3. waltertruenorth on August 6, 2019 at 12:39 am

    Thank you for showing this. It’s very detailed, step by step adjustment procedure.



  4. Mesbah Alotry on August 6, 2019 at 12:39 am

    👍🏼 you’re the Best 🚴🏻‍♂️



  5. baz on August 6, 2019 at 12:40 am

    At last, no music , no silly props . Thanks for a Great Clear video , you have saved me a right few Quid , Thankyou . Baz ( UK )



  6. ZX6R#366 on August 6, 2019 at 12:40 am

    That’s is a really well executed stache.



  7. einstein dsouza on August 6, 2019 at 12:41 am

    Somewhat worked



  8. Marc Dupras on August 6, 2019 at 12:41 am

    Fantastic video. I love learning why I am turning certain knobs or tightening certain screws. The wife will be extremely happy once I fix her gears 🙂



  9. luke nackley on August 6, 2019 at 12:41 am

    Wish this was my problem but it looks like I’m going to the advanced



  10. Alex Miles on August 6, 2019 at 12:42 am

    thanks park tool. I’ve followed the instruction and when I’m shifting down from the second large cog to the 3rd cog, there is a sound and is not shifting down, I’ve already turned the adjuster clockwise a couple quarter turns, and I cannot turn it anymore. what can I do?



  11. atticus ackley on August 6, 2019 at 12:43 am

    i have had a folding bike for about five years now, and about four of those years it wouldn’t grab first or second gear and sounded like crap. i watched this video once and by the time it was done it grabbed all the gears and barely made any noise.



  12. pipeski on August 6, 2019 at 12:44 am

    This video was great, thank you! But, after upgrading the cassette from an 11-36 to an 11-42 and downsizing the chainring to a 32t from 40, the b-screw needed to be tightened first to allow the derailleur to clear the granny gears before actually indexing those gears…



  13. Matthew Albring on August 6, 2019 at 12:44 am

    Possibly the best vid on YouTube. I made a detailed an outline following your steps exactly. Having never adjusted indexing before I was able to do it in less than 30 minutes. After a test ride I needed only a final minor tweak to the barrrel adjuster.



  14. Richard Hall on August 6, 2019 at 12:48 am

    That was surprisingly easy to follow. Thanks you.



  15. José Federico Presno on August 6, 2019 at 12:48 am

    Best video in this matter



  16. larry g on August 6, 2019 at 12:50 am

    I’m watching this because the shop I bought my bike from came messed up… hahahaha



  17. Miika Hirvelä on August 6, 2019 at 12:52 am

    Very good video, did 3 bikes with this one but I only got one working well (Shimano Deore XT). Ultegra and Deore doesn’t work for me. Both have the same annoying symptoms, doesn’t shift well up nor down. So it doesn’t help if I turn the indexing to either of directions, always the one direction gets even worse. The cable and the housing seems to be ok. I cleaned the cable all the way and oiled it. Can the problem be still the cable or housing? They are a couple of years old, maybe 5000km driven. Derailleur hanger is on level.
    My humble opinion is that these adjusting mechanics are not very good. They should be improved. Your only option should not be worsen the other setting to make the other working better. I know it works when everything is new but should the adjustment work even when the product is a bit used? I hope the electrical gears will solve this for good. Thanks for the great vid anyway.



  18. Don Nedeau on August 6, 2019 at 12:55 am

    This video is perfect. The graphics are really helpful and the guy is awesome. I’d perform open heart surgery if he were walking me through it.



  19. J C on August 6, 2019 at 12:56 am

    Passing on the local bike shops that charge to much! ….learning to tune my own bike! Thanks Teacher! ….Great Videos!



  20. Devin on August 6, 2019 at 12:56 am

    When do you know to get a new rear derailleur? I recently went on a bike ride with a lot of hills and my derailleur hanger bent into the spokes. I also noticed that the barrel adjustment has a spring sticking out and looks to not be in place along with the derailleur plastic gears looking a bit chewed up. Should I also get a new derailleur if the adjustment barrel is broken?



  21. Darvis Whatfer on August 6, 2019 at 12:57 am

    Is it important for the bicycle to be upright, or can I set it upside down on the handle bars and seat to make the adjustments?



  22. Greg Jones on August 6, 2019 at 12:57 am

    I love these videos. Great public service and advertising for Park. I have fixed my brakes, chain, derailleur, and cassette with help from these videos. I have also spent over $400 on park tools. I will loyal to these guys forever.



  23. kde9910 on August 6, 2019 at 12:58 am

    What if it shifts skips the second largest gear and jumps right into the largest when I shift only once? It also creates half gears when down shifting 🙁



  24. luke bradley on August 6, 2019 at 12:58 am

    Skills with Phil becomes a bike repair instructor. whoa



  25. Zak Meyer on August 6, 2019 at 12:59 am

    So I guess I’m the only one who is extremely confused and frustrated with this video



  26. N8c3z8nr N8x22z9yb4 on August 6, 2019 at 1:01 am

    Walmart employees need to watch this



  27. Paiden Nicks on August 6, 2019 at 1:01 am

    I was wondering if when building a bike, would it make more sense to adjust the front or rear derailleur first? I’ve been working at a bike shop for a few days now and adjusting this stuff is giving me the most trouble right now, and I’ve gone back and forth with the order. Thanks



  28. David Mann on August 6, 2019 at 1:06 am

    Fantastic instructor; now due to his teaching, I finally understand and can adjust my derailleurs!



  29. Basant Dream's sports only on August 6, 2019 at 1:07 am

    Thank you so much it is very helpful for me as I m stuck on the way



  30. Banoffee on August 6, 2019 at 1:07 am

    He reminds me of Christian Bale



  31. StreetDareDevil7 on August 6, 2019 at 1:10 am

    2:14



  32. Chris Chandler on August 6, 2019 at 1:12 am

    Nailed it, sir. Fantastic detail and demonstration of concepts and specific adjustments.



  33. Blade on August 6, 2019 at 1:13 am

    The bottom part keaps going inside



  34. Miles Williams on August 6, 2019 at 1:13 am

    I used to work in a bike shop, this video is perfect, superb graphics, and I love the info telling you where to skip to if you are someone that doesn’t want to learn the details, just wan’ts to sort it out… whoever edited this did a great job.



  35. mar vincent del rosario on August 6, 2019 at 1:14 am

    Thank you so much…you made me understand clearly the use of evrery part there is…



  36. Bryan Calhoun on August 6, 2019 at 1:16 am

    excellent class…



  37. Nathan Mark on August 6, 2019 at 1:17 am

    WE NEED MORE HELPFUL VIDEOS LIKE THESE IN OUR COMPLICATED LIVES I LUV THE GRAPHICAL HIGHLIGHTER THINGS



  38. carlos rosado on August 6, 2019 at 1:20 am

    I like how did you explain it. With this tutorial I’m going troubleshoot all these symptoms on my bike. Thanks



  39. MosherMike on August 6, 2019 at 1:21 am

    Much better than the GCN guide.



  40. Charlie on August 6, 2019 at 1:22 am

    I can’t believe there are any thumbs down for this video at all. That was a beautiful video man. Many thanks for it.



  41. Janai Wallace on August 6, 2019 at 1:22 am

    This video was SO helpful! It gave me a broader understanding of my Derailleur system as a whole and a great step-by-step tutorial on how to tune it up. I had watched other videos before this and almost given up on doing this myself because I was messing up my bike more than helping it. This video saved the day! And saved me from having to take my bike to a shop 🙂 Thanks!



  42. Rob Hernandez on August 6, 2019 at 1:25 am

    Does anyone know how the numbers on the shifters correspond to the cogs on the back wheel? mine has numbers 1 to seven and that is the number of cogs in the back does number one correspond to the big cog or the small one? also for the front is one to three is from small cog to big cog or the opposite? he did not mention that in the video.I need to match the proper number to each cog.Thank you



  43. Novocaine888 on August 6, 2019 at 1:25 am

    Perfect guide. Legend.



  44. SPRY tv on August 6, 2019 at 1:29 am

    very useful and helpful video thanks for upload



  45. fungus dabogeyman on August 6, 2019 at 1:29 am

    Insanely helpful and well laid out video.



  46. Wallace Lawson on August 6, 2019 at 1:30 am

    Thanks for the help man….



  47. Fox Firemaker on August 6, 2019 at 1:32 am

    I’ve been riding bikes all my life and apparently have only properly adjusted my derailleur on accident.



  48. Alex K on August 6, 2019 at 1:32 am

    Top quality, easy to understand video. Double thumbs up. Clear examples including trouble shooting. One of best instructive videos I’ve ever seen. Thank you.



  49. Hacker Fucker on August 6, 2019 at 1:32 am

    Great detail



  50. D G on August 6, 2019 at 1:33 am

    All i need is a bike stand.