sanjeevv1

Hi guys
Newbie here. I have a older Univega hybrid with a long cage Shimano Exage 500CX 7 speed rear derailleur which needs to be replaced. What would be a good replacement for this derailleur - I'm looking for one with the highest chain wrap capacity. Thanks in advance.
Sanjeev

DorkDisk

Basically any 7,8, or 9 sp derailleur will work, and long cage is what you want for larger cogs. The best new manufacture from Shimano will be the Deore RD-M591. For used, there are may options. Something like an STX will be easy to find at a co op or bike shop that has been around for a bit and works great.

hokiefyd 

You can use many inexpensive derailers. I've had very good service from a number of RD-M360 derailers on my bikes. You can usually find these brand new for about 20 bucks online. They have larger-than-normal 13T sprockets, and they run very smooth and quiet.

I often like buying used bike parts, but I've had a few used derailers where at least one spring was worn out, making them less than optimal on the bike. For the low cost of a new one in this case, I'd probably favor new.

canklecat

Same Exage 500 CX on my '92 Univega, 30/40/50 triple chainring, 12-32 8-speed cassette. Still works but if I needed to replace it I'd go for something like the Shimano Deore mentioned above.

Update: Since originally posting, I've acquired an early 1990s Shimano Deore LX long cage rear derailleur. It's nearly identical to the Shimano Exage 500 CX. There are inconsequential differences in the shapes of the cage swing/pivot stop and some cosmetics. Even the model numbers stamped on the bodies are almost the same, differing only by a minor revision.

I'm not sure whether any other Deore components from that era are also relabeled from Exage. I have only the Deore LX RD.

fietsbob

Big change... fit a Shimano 8 spreed internal gear hub wheel . the 1 cog will always be available for replacement..