How To Fix Derailleur Hanger With Stripped Threads 

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I usually just thread my deraileur from the back of the thread which creates new threads and then I thread it back the normal way. It has saved me a lot of times and I think that is the best way unless you have a very very stripped hanger.

Mr R J,,,, you are the best,,,, my schwinn prologue will see light again..my wife gave me the frame when we got married in 87. over the years this problem developed you are the answer. Many thanks and keep the tricks coming for vintage, classic bikes.

You are a legend another frame saved! Great advice as always all the best for the New Year..... Andy

Hey RJ! Thank you for your videos. You are a legend :D I am having this exact problem right now. I brought my bike to my local bike shop and they said the derailleur hanger was irreplaceable. Sad but I immediately bought a derailleur saver :D I wanted to know your opinion on filing the hole and also freezing the derailleur saver to shrink it. I’m a bit scared to drill my bike because I might just destroy it. Thank you! Update: I filed the hole. Took some time and effort but I managed to do it. Just needed to be careful because the more I filed, the metal sides that still existed became thinner and could’ve broke. On the other hand, freezing the derailleur saver didn’t work lol.

Great video,,,, you are a life saver ,,,, my 1980 derosa steel frame will feel the road again .. In storage because of this problem ,,, great job...

You saved my life, Honestly I been trying everything and this was such a basic way to fix it thank you

Thank you for saving my bike, I have upgraded many parts then it ended up with this issue. After installing the dropout saver my bike is revived!!!

Thank you so much for this incredible video.. i tried to adjust my derailleur and stripped the bolt and didnt know what to do.. you are the Man!!! thanks!!

Love your vids RJ! I hope you're surviving the cold okay and I look forward to a new video soon.

Fround my solution to my hanger thank you. You are the best!

Dear RJ, Thank you for sharing with public your skill in bicycle mechanic and your innovative ideas for tool making. I would like to see your innovative idea of making a tool or showing a way to increase the elasticity of the coil spring for the brake caliper mounting cantilever. By the past of time and use, those coil springs do lose their elasticity. Sometimes they totally lose it. Unfortunately I have not find any place selling those springs individually. One has to buy a complete caliper set that are rather expensive. I did play with a coil spring that had lost its elasticity by pulling its ends in opposite directions and increasing the space between the concentric circles of the coil. It was effective and worked well. However, I would like to learn your idea about this subject and hope that you can possibly demonstrate making a homemade tool for this purpose. Thank you

Great video and very concise and straight forward.

You always have the solution to any bike problem

keep the good videos coming! love this channel!

A simple solution to a major problem👍👍👍

Good information as usual, thanks.

You saved my life, Thankyou very much!

Yet again a great video thanks man

This solved my problem! The only vid for this type!

Thank you so much this video was so helpful

Thx for you videos!

Thank you, frame saved!

OMG!!! You just saved my schwinn. Subbed

Thank you very much. You saved me

Not sure if these exist already but another idea that may work after you drilled the hole wider would be a type of nut that could be placed inside the hole and would push outwards to 'grip' like a rawplug you put in a wall.This would avoid the projection that would interfere with the chain,cog you mentioned.The outside could even be coated with rubber to avoid damage to wall.

Love Diet Mtn Dew. Thx for the tip.

nice job !

Thanks, that help !!

Very good

And now for a can ov Pepsi it's thirsty work 👍😂nice one RJ

No matter what your bike problem is RJ has a video for it.

Nice 👍👍👍

rj, fantastic!

Cool, that is the way my Campy derailure attaches to my Paramount

first try tapping from the back where the threads are still good so they can guide the bit install with lock tite so you dont have to torque it. If that fails use these. Great infl

Thank God I now have some ideas of how to get out of the pickle I'm in

The dropout savers look great. Do helicoils or timeserts work for this kind of repair as well?

Hello RJ! First of all I have to say thank you for these videos I've learnt a lot from you. Can't wait for your next video, so when will you upload a new one? :) Greetings from Hungary

Great videos! Do you have a hack for a bent frame ingrates derailleur hanger like the one on this video? Can I use the dropout saver on it?

I have a tap I use specifically for this sort of job, though it's rare I need to use it.

In the event that the hex head protrudes into the small cog, you mention the possibility of adding a spacer on the axle (quick release?) which should provide clearance. 1- For balance, should spacers of equal thickness be placed on each end of the axle? 2- Will the addition of the spacer adversely effect the derailleur functioning by effectively moving the cassette further away from the rear derailleur? 3- I see another alternative talked about... that of using helicoil to form new M10 x 1 mm threads. Any thoughts? 4- Novice that I am, I tightened up the derailleur attachment bolt after encountering resistance over the last third. My thought is that the threads of the attachment bolt may be disfigured too after having gone through that exercise several times. I bought a new M10 x 1 mm bolt and nut from the hardware store, and that bolt moved through the threaded receiver without that resistance that was felt with the rear derailleur bolt. Is there any fix for the eventuality that the threads on the rear derailleur attachment bolt are compromised? Could the rear derailleur be disassembled to get that bolt independent for thread chasing? As installed, there doesn't appear to be any way to get at the threads with a separate nut, with the B screw assembly set up, etc. in the way. .... Really have valued your presentations. First class.

Do we need to gauge the concerning we use hand guided drilling.

Not a bad fix.. easy and simple!.. I'm surprised there's not a helicoil kit for this. Perhaps there's not enough thickness of material to make it work properly!.

How bout using smaller bolt and nut grinded into thin thickness

i have a question: can i mix shimano/Tektro mineral oil with clarks brakes

hii do all deraileuur hangers come with the bolt

This would have saved my favorite Raleigh mtb a few years ago. I was doing some deep woods trail riding, and I had a branch get caught in my spokes. It ripped off my derailleur, and striped the threads on the drop out. Furious and frustrated, I went to my local bike shop and they basically told me my bike was K.I.A., and there was nothing they could do as it was an aluminum frame. I was so upset I ended up trashing the bike. If I knew of this product back then I would still have that bike today.

Hi, RJ! This derailleur is a Shimano Deore XT RD-M732 ?

I have the same threading problem with a carrier eyelet. Does the piece come in M5 size ? I'm weighing my options

Hi RJ, can you please show us how to make a chain ring peg wrench (the tool you use to replace chain rings) thanks a lot!

Jesus that's a lot of Pepsi

Where can I buy dropout saver??

Hello RJ I HAVE THE REPLACABLE HANGER BUT THE PROBLEM IS THE BOLT WHICH ATTACHES IT TO THE FRAME I NEED A NEW ONE AND I CANNOT SEEM TO SOURCE ONE FROM ANYWHERE. THE BIKE IS A RADRUNNER ELECTRIC BIKE EVEN THE COMPANY THEMSELVES CANNOT HELP ME AS THEY DONT HAVE THAT TYPE OF PART IN STOCK HAVE YOU ANY ADVICE APART FROM NOT BUYING A RAD CHEERS

is this dropout safe for Trails??? Please someone answer mee

Wt type of hanger is this 🙏🙏

Hi RJ, any tips on how to fix the metal tab where the limiting screw rests? Mine seems to have been rubbed down and the screw is barely resting on it. I'm afraid it'll slip causing my rear derailleur to fail. Thanks. Always learning something new from your videos.

How many bikes do you have ?

Hi ,RJ , is there any one that sales steel rear derailleurs hangers ? thanks for the information , Stay healthy and safe and thanks for Your valuable information . . . Oh I remember when You visit that museum in Washington and show the campagnolo shifter with 2 rods in the seat stay , my father use to race with those shifters in south America with a Benotto bicycle

Hey RJ. I love your videos and I do have a newer mountain bike derailer hanger. I have had the rear wheel freshly rebuilt and new cassette and a new chain but something is still wrong with my bike. I have a Titus Rockstar 29er and it seems like every time I pedal and too much tension is on the chain it will pop. It does it a lot and it is always when I am pushing down on my pedal (like when I am trying to accelerate). I have taken it to a shop and they tried adjusting the rear derailer hanger with their tool but to no avail. I just posted a video on my page and I was wondering if you could help me figure this out. I have dropped a ton money into this bike and had zero rides this past summer. It starts doing it at around 3 seconds till about 6 seconds and then again around 16 seconds. I am posting the link to the video. Thank you for your help and for all the videos you have done. We appreciate them. ru-vid.com/video/%D0%B2%D0%B8%D0%B4%D0%B5%D0%BE-36xtRhWP7PE.html

15/32 inch = 0.46875 inch == 11.9mm (12mm bit) Still relevant after all these years.

Looks like a Trek Mountain Track 800? I just picked up one of those in rough shape for $15. Derailleur hanger was bent and stripped. I’m thinking this is my best option as the hole is somewhat oval shaped. RJ, I need also need to replace the middle chainring on this bike. Are there any options other than replacing the entire crank?

Hi again can u pls give me the link for the exact hanger that u illustrate in this vid and other vids as I can’t seem to find it anywhere and it’s the perfect shape I need

help mee plzz i have no derailleur hanger its directly in my frame and its bent how can i fix this😭😭

👍 brasil

hello! I just got a new Sunday blueprint 2017 and I've come across a problem I've had with my old bike where if I were biking slowly up a steep hill there will be a pop, not creaking just a sudden pop that happens once or twice going up the incline. can someone please tell me if this is common or something to worry about and if there are solutions thank you :)

Not available in my Country (Philippines) suggest any more ways?

Good video. Can you please tell me where can I find M10 bottom bolts to connect the the derailleur to the hanger, I tried in amazon but it might be with a different name. Thank you

Why not paint or grease the hole, to protect it from water.

Hi RJ, Do you know if there are any clip-on rear derailleur cable stoppers in the market? I'm building a bike which doesn't have a cable stopper on the chain stay (to impede the cable housing from moving forward while shifting) and while I have seen many cable guides, I have yet to come to a proper cable stopper. Is welding something on the only answer? (hoped for something easier).

Don't forget a derailleur hanger realignment is a must after using a dropouts saver or helicoil!

👍😱

What if I'm missing that bolt that holds the derailleur

These are not that cheap £22 plus post cost but it is quick and tidy, but i would just switch my welder on and tap it, like you say

⁽ حـﹻٰ۫ﹻۧـلـﹻٰ۫ﹻۧـوٰ୭ًًٌٍَُّ 🙀💗♩

My left crank arm becomes loose and eventually falls off on multiple occasions, how do i fix this? I have tried excessively tightening the bolt and placed a washer but no success

How to purchase this item plzzz commnent mere

helicoil takes less meat out of the threads

is that a 1993 specialized Sequoia?

dropout savers are darn expensive😢

Please google helicoil kit, this wont interfere with anything! Just be sure to stick some thread lock on the coil b4 putting it in. Also leaves you with "steel threads"

Not one bit of help. How do you install a direct derailleur without the holes

Why not drill it from the other side to get it perpendicular? Some oil would save the bit.