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Old 08-19-14, 05:01 AM   #1
BIKER2000
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can i attach a regular rear derailleur in a separate hanger ?

i have a broken rear derailleur (old sunlight u ) i don't know if it's short or medium cage , so im gonna replace it with a new one
all available derailleur which coming with hunger are too bad , and about 100% of them are short cage , i need to replace my broken one with a medium cage because i have loose chain with the old one and im gonna purchase a new 6-7 speed chain with the new derailleur , so .. i have an idea but don't know if it's possible or not , im thinking of buying a regular derailleur (without) hunger , and attach it in the old derailleur hanger , is this possible ?

this is my old broken derailleur with im thinking to use its hanger
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Old 08-19-14, 05:05 AM   #2
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The typical replacement for that broken derailleur would be a Shimano Tourney. It'll have the slack take up that you need provided you have the chain sized correctly.
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Old 08-19-14, 05:15 AM   #3
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You can't use the old hanger (may be bent anyway) but you can buy a new one and a separate derailleur.Rear Index Derailleur Hanger Derailleur Dropout Black Nut and Bolt Shimano SRAM | eBay

Also, there are numerous long cage bolt-on derailleurs available - Rear Index Derailleur Hanger Derailleur Dropout Black Nut and Bolt Shimano SRAM | eBay

All you have to do is Google bolt-on derailleur hanger to see multiple examples of hangers and derailleurs.

As for the chain, there's a good chance it may not mesh with your old freewheel/cassette.

Finally, I can't see them terribly well but those cones appear to be unevenly worn and pitted.

I'm afraid when all the above is considered it probably is not worth putting the money into the bike.

Please take a bit more care with your posting - very hard to read when you use no sentences and don't correct typos. We put effort into helping, please put effort into making it easier for us.

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Old 08-19-14, 05:30 AM   #4
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The typical replacement for that broken derailleur would be a Shimano Tourney. It'll have the slack take up that you need provided you have the chain sized correctly.
you mean this ? Shimano Tourney TX35 6/7-speed Rear Derailleur ? it seems to be long cage is that ok ? and about the chain , a friend here in the forums told me that 6-7 speed chain fits my bike , i have a suntour five cogs freewheel
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Old 08-19-14, 05:34 AM   #5
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You can't use the old hanger (may be bent anyway) but you can buy a new one and a separate derailleur.Rear Index Derailleur Hanger Derailleur Dropout Black Nut and Bolt Shimano SRAM | eBay

Also, there are numerous long cage bolt-on derailleurs available - Rear Index Derailleur Hanger Derailleur Dropout Black Nut and Bolt Shimano SRAM | eBay

All you have to do is Google bolt-on derailleur hanger to see multiple examples of hangers and derailleurs.

As for the chain, there's a good chance it may not mesh with your old freewheel/cassette.

Finally, I can't see them terribly well but those cones appear to be unevenly worn and pitted.

I'm afraid when all the above is considered it probably is not worth putting the money into the bike.

Please take a bit more care with your posting - very hard to read when you use no sentences and don't correct typos. We put effort into helping, please put effort into making it easier for us.
thanks for every word , at first im so sorry if there are some words not clear , actually i speak french and english is not my native language , but im doing my best to write clear sentences

and for the bike here are more pics
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Old 08-19-14, 05:40 AM   #6
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OK, I understand the challenge, as I had to learn some Italian for a trip to Italy a few years ago, and I won't even attempt my 50 year old French, but please at least construct sentences with capitals and periods - that exists in French also, n'est pas? If you understand that I'm means I am then you should understand that a contraction requires an apostrophe.

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Old 08-19-14, 05:43 AM   #7
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you mean this ? Shimano Tourney TX35 6/7-speed Rear Derailleur ? it seems to be long cage is that ok ? and about the chain , a friend here in the forums told me that 6-7 speed chain fits my bike , i have a suntour five cogs freewheel
I should have been more clear. A new chain will often skip on old rear cogs due to the cogs being worn, especially if the small ones were ridden more. That would require a new freewheel (requires a special tool to replace it). Also a special tool is required to install a chain.

After seeing the pic of your bike I would seriously advise you to pitch it and buy a decent used bike. Even completely fixed up that bike is worth $40 or less.

Last edited by cny-bikeman; 08-19-14 at 05:57 AM.
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Old 08-19-14, 07:33 AM   #8
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Get a used rear derailleur and don't worry about your old chain.

Make sure to set the limit screws on your new/used derailleur so that it can't hit the spokes again.

5$ repair, 20 minutes, 2 banana difficulty.




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Old 08-19-14, 07:39 AM   #9
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i should buy a new chain because the old one broken :S
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Old 08-19-14, 11:07 AM   #10
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AGAIN, if you have to buy a new chain, a derailleur and a new freewheel, and possibly a new shift cable (the end of the old one is badly frayed) it will cost you more money than the bike is worth. Figure on about $40 plus either buying a chain tool and freewheel tool (need a large wrench or strong vise, too) or paying a shop to install the chain and freewheel. With no experience in installing a derailleur you may not do it properly, and the shift cable/housing also requires tools to size it. We don't know what else might be wrong with the bike, either.

As I previously noted the hub is in poor condition, and I just noticed that the axle washers seem to be on the inside of the dropouts rather than the outside.

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