Shimano RD-C050 rear mech - need replacement

alex_uk

My rear mech is broken but I'm having trouble working out what replacement I need. It's a Shimano Tourney system and the mech has RD-C050 stamped on the body. It's also got an interesting cable pulley.

alex_uk

Here's some pictures of it

nicklouse

Any shimano rear mech not 10spd.

alex_uk

Thanks Nick!

I think the mech needs to have a spring the other way around to normal, because the shifter lets the cable out going to 1 and draws the cable in going to 7.

cooldad

That would be called Rapid Rise. Generally harder to find, especially in lower end mechs, but normally cheaper as not many people want them. I didn't think Shimano made them any more.
A standard mech will still work, just the other way round.

The Rookie

If you are searching, they are sometimes also called 'low normal'.

alex_uk

Thanks for giving the terminology - that's made searching very much easier!

So, would a 9spd work in this situation - such as the Shimano XT M770 9 Speed Rear Derailleur? Not that I really want to shell out for an XT mech, but I'm just curious if the 9sp are compatible on a 7sp system, or if they are execting a much narrower chain and therefore would not work?

cooldad

It will work fine. Any Shimano mech except 10 speed will work.

alex_uk

Thanks for the clarification