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!

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:

➤ Fix It:
Did you know that Park Tool is the #1 resource for bicycle repair education?

➤ 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:

[cliffcox]

PARK TOOL: Listen to This guy is a gem and needs a raise, secondly, he is a supreme asset to your company, make sure he is happy employee.

[Jgriffin]

Honestly, you need an award for this video, the visuals are unmatched in most other how to videos, this could be part of a professional course on how to service bicycles, this is pure gold, thank you so much!

[byggerEttSlott]

This is an immortal video. Will forever go down in the hall of fame of YouTube.

[MindLaboratory]

This is not just a great video on how to adjust a bike - it's also a great example of what a how-to video should be. Every educator should watch this even if they have no interest in bikes.

[TKDChad]

I was looking for videos of trains derailing and now I'm a master bike mechanic

[WeisenMz]

The production quality of these park tool videos is insane. They are the best content I've seen on Youtube in, yeah, forever.

[TedSailAwayCost]

This is truly an example of well planed instruction . He stays perfectly on his subject and doesn’t move ahead until he has proven his point and there is no silly unnecessary idol chat. 11out of 10 . Thank you very much

[flamingtarantula]

Not only does this guy have an absolutely sick moustache but, this guy does the single best instructional videos on YouTube

[harshsomvanshi]

This is BY FAR the best video ive watched on the subject. Not only does he explain the process, he also explains all the likely scenarios one might face while adjusting the derailleur, along with which screw does what in great detail. Im saving this video in a playlist, its a gem.

[nicknz]

This has to be the best rear derailleur tutorial on the internet, explains everything and easy to follow.

[sonnypunani]

Indexed my wife's derailleur within 15 minutes with this video to help me out. Fantastic teaching and clear instructions from Calvin. 100/100.

[unspecified]

This might be the greatest "how to" video I have ever seen!

[asherbanipal]

He is the reason YouTube was invented. This is a perfect video.

[ddahstan]

Calvin should be putting up on the pedestal for every biking community. He's passionate and thoroughly explains the process. What a privilege to learn from these videos!!

[BuonRotto]

Not only does the host do a very good job with their explanations and presentation but major thanks to the editing and motion graphics team for making these videos the absolute clearest graphic representations of alignments, parts and everything else

[ItsFunkadelic]

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.

[arcticminibike]

How can anyone give this a thumbs down? I've worked on my own bikes for 30 years but always a bit of a hack on rear derailleurs. If I can get it to shift fairly quietly through the full range, I call it good. This is an awesome video on how to do it right and as an engineer, I appreciate the step-by-step with the logic behind it. Every Park Tool video is extremely well done, clear, and concise. Keep up the good work!

[QbertTehKiller]

That mustache is so glorious the bike fixes itself out of respect.

[R_kharman]

This is the only video on the internet that fixed my derailleur

[OGRH]

Probably eight or nine months ago I used this video as a guide to getting my rear derailleur set perfectly… The instructions in this video are articulate, well laid out, and very clear cut. For somebody who has absolutely no experience, this is a very complicated endeavor; which this gentleman explains in such a way, that WITHOUT ANY FUSS WHATSOEVER, I was able to perform like a master mechanic from a reputable local bike shop! My derailleur shifts smoothly like a Swiss watch! With that being said I hadn’t yet adjusted the front derailleur, and came here just to make sure I’ve left this gentleman and this channel a compliment, a like, and double check that I’m subscribed! It’s easy to use these things and go on with life, and often it’s just the nature of the world, but this guy did such an amazing job guiding me through this process, if I didn’t stop to thank him & your channel, then I don’t feel I deserve the masterful help! Thank you for your service to humanity! There is no doubt you are a master at what you do!

“If you can’t easily explain something so that a small child can understand it, then you don’t understand it well enough yourself.” -Albert Einstein