Originally Posted by
Bill Kapaun
It's "possible".
I'd just buy a new Altus myself.
+1 on the Altus.
I had the Tourney rear derailleur on my 1 year old bike replaced after clumsy me stepped on it after dropping the bike. I must say, It worked fine untill then.
The bike shop replaced it with an Altus model. It works flawlessly and is clearly higher quality then the Tourney it replaced. I'm surprised Shimano would make such an outstanding product for a budget price. You could spend 2 -3x more on other Rd's and do no better overall.
To be fair though, The derailleur is just one component for shifting, And probably not even the most important. The condition and quality of the cassette (which happens to be Shimano too) might be as important as the derailleur. Shifters and cables are also an important part of the package. As I said, This bike is only 1 year old with about 1,400 km on it, So it should come as no surprise that both the Tourney and Altus derailleurs worked well.