5 mph

1. I use my Giant Talon 2013 1 29er everyday. We have bad roads around gere. Coming down a hill fast today I sheared off my Rear Derailleur when I hit a fence post .
2. How do I locate the part number for a 2013 Giant Talon 1 29er Rear Derailleur Hanger ?
3. I can't figure out what version of the Shimano Deore Derailleur the 2013 Talon 1 uses.
Someone said it is a RD-M592 (SGS)? Are the RD-592 SGS and the RD 592 the same part?
There are many different versions...If I call Giant Tech Support will they know?
4. I have a knot in the chain that I can't get out.
5. Is this a hard repair to make. Can anyone point me to any technical advice or sources on the web.
6. Had to use a Road Bike with skinny ties today. Didn't feel very safe on it.

Thank you in advance
respectfully
5 mph

aggiegrads

The repair is not terribly hard and does not require special tools other than a chain tool. Where is PNW are you? The Community Cycling Center in Portland has a pretty good collection of RD hangars.

Wheels manufacturing has a good RD finder; it looks like you take hangar #21 .

How many speeds? That is probably more useful that knowing exactly what model you currently have.

5 mph

Good morning.
The bike is 9 speeds.. I found this derailleur on Amazon. It looks the same and its 9 speed.
Do you think it will it work?

SHIMANO Deore RD-M592 Rear Derailleur

https://www.amazon.com/SHIMANO-Deore-RD-M592-Rear-Derailleur/dp/B00WJGWJUC

Thank you in advance
Respectfully
5 mph

alcjphil

You don't even need a chain tool. Derailleur pulleys can be removed and replaced to install the chain

aggiegrads

OP said that the chain “had a knot”. This tells me that there is likely damage and it will need to be replaced.

5 mph

This is the knot. I tried to work it out yesterday but could not. Does it go away when I reinstall the new Rear Derailleur?

alcjphil

The picture doesn't show the rest of the chain

5 mph

Here is the entire chain. I have to go out for awhile on my spare bike which is 1 gear.

aggiegrads

If the chain has no bent links (you should inspect very carefully), you can work out the knot. The left-hand knot/loop right at the idler pulley needs to “converge” with the right-hand knot that you are concerned about.

alcjphil

They will then cancel each other out. Would be easier if you removed the pulley wheels from the broken derailleur since it won't be reused.

fietsbob

At least the replaceable derailleur hanger gave way..


open the chain @ the quick link & take it off.. (?)






....

5 mph

I know it sounds dumb but heck getting a new chain isn’t out of the question. I am scared of getting the wrong derailleur and having to redo the shifting setup.



.

aggiegrads

Fortunately, with 9 speeds, it will be difficult to buy the wrong rear derailleur. Any 9 speed road or mountain long cage will be interchangeable. With a new hangar, the new RD should bolt one and meet adjustment with no problem.

Davet

Your derailleur has the model number cast on the inside of the derailleur. Whatever one it is, it is an SGS (the long-cage versión).

5 mph

Aggiegrads, alcjphil, fietsbob, Davet, I want to thank you all very much . I was really discouraged last night. Thank you very much for your help and your answers
I drilled out the derailleur sprocket and now this is where I am. Thank s Aggiegrads, alcjphil, fietsbob, Davet

5 mph

I can finally get some sleep now...

alcjphil

You didn't have to drill out the pulley bolts. You could have removed them with a hex wrench and saved them as spares

fietsbob

derailleur hangers (there is several hundred different ones) https://derailleurhanger.com/

HillRider

You are going to have to reset the shifting no matter what new rear derailleur you get, even a duplicate of the trashed one. You will have to set the low and high limit screws and then adjust the shifting with the cable adjuster after the cable is attached.

Considering what you have asked above and that you drilled out the pulley bolts instead of simple unscrewing them, you may want to have the hanger and derailleur installation and adjustments done by a bike shop or a knowledgeable friend.

Finally, if the chain is damaged and has to be replaced, expect to also replace the cassette to prevent skipping under load. New chains usually don't play well with used cassettes.

5 mph

I drilled at the Lower Left Hand side and yes you're right there is a hex bolt there I didn't see.
I wasn't wearing my glasses and I was excited and in a rush to get the Rear Derailleur model number.so I could do the order right away.
I definitely made a mistake, and the only thing I can say is .. I didn't see the tiny hex fitting there. I feel Badly.. For the record I save everything when I do repairs because trying to buy this bolt 3 years from now would cost me $9.95 if I am lucky.

5 mph

.Ironically I was once respected for my mechanical ability.I admit my mistake Didn't start working on bikes till June, I was a runner first and a walker until then,
.I'm getting older and sometimes I don't have that sharpness I

alcjphil

If you didn't know about the bolt, you simply didn't know. However it does pay to examine things closely before using your drill. Make sure to save all other hardware from the old derailleur, that stuff is almost impossible to buy if you need it.

5 mph

Thank you very much everyone.

5 mph

Thank you everyone.
Don’t know where I would be without you.I have never seen a forum with so much generous help.
Got a bit defensive because I was a good mechanic but I know nothing about bikes.
Hope no one took it the wrong way.
Respectfully
5 mph

gsa103

For future reference, almost everything on modern bike can be removed with the appropriate size METRIC hex wrench. As mentioned above, the next step is removing and replacing the old derailleur hangar which broke off, as it's designed to be sacrificial.
Given the age of the bike, replacing the chain may not be a bad idea. A quick link will let you easily install and remove the chain without special tools (https://www.amazon.com/Missing-Bicyc.../dp/B001PTA4I8, or you local bike shop (LBS) should have one.

And most importantly, make sure to get the routing of the chain through the rear derailleur right. The chain should not rub on anything. It's very easy to route it incorrectly between the two wheels and get it on the wrong side of the cage plate.