I have a Huffy All American 10-speed road bike and looking for a replacement for the rear derailleur. Any suggestions?
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Welcome to Bicycle SE, we do not offer product recommendations here. But you should be able to use the same or very similar rear derailleur. However judging by the image it is not a 10 speed bike so to speak. It looks to be a 5sp, i assume there are 2 chainrings on the crank and 5 in the back? If that is the case any 5/6/7sp entry level derailleur should work fine. That one looks to be one of the older Acera X derailleurs by Shimano. A replacement should be relatively cheap.– Nate WOct 13, 2016 at 17:18
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You really should have a spoke guard.– Daniel R HicksOct 14, 2016 at 0:43
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(It's not clear from the picture that anything's broken. Most likely would be that the hanger is bent.)– Daniel R HicksOct 14, 2016 at 12:01
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1 Answer
To be honest, that might be salvageable. Slacken the B screw and see if you can pull it down to the normal position. You will have to remove the chain from behind the freewheel anyway. This could be tightly wedged in there.
That mechanism doesn't look original - so this may have happened before?
You'll want to eyeball the hanger, then test it with a straightedge ruler, and then gently bend it back to position if its not straight... and if it snaps, you'll have to obtain a replacement.
Second part is "how did this happen?" then "what can be done to stop it reoccurring?"
Often the rear mech catches a spoke and gets pulled around, but in your case it looks like the chain jumped the big cog and is now wedged between spokes and freewheel.
Stop it happening again by adjusting the big-cog limit screw on the RD mech. You may also choose to fit a spoke protector/dork disk under the freewheel. My old 5 speed had a classy metal one, but most are clear plastic.
Follow-on damage might include where the chain has munched on the curve of the spokes. I had this on a MTB and because I pedalled a bit, the chain had bitten halfway through some spokes. They broke soon afterward, in the next week or so.
Getting the chain out required removing the freewheel/cassette. You might be luckier if its not as tight.
