Can I get away with a medium cage rear mech?

richtw

Simple quesion do you think I can get away with a medium cage rear mech?

Running 24-38T double up front and an 11 - 34T out back on a cotic soul? 37T chain wrap is a couple of teeth over the 35 stated by Shimano but it is on a hardtail so no extension to take care of! I have a long cage on at the momemt which works well but looks hugely over kill - oh and keeps hitting everything in site as it is longer than a track pump

Can anyone shed any light on this?

Thanks

Chunkers1980

I wouldn't

richtw

It's OK I have been assured it works perfectly....

Chunkers1980

Why ask then? I still wouldn't

The Rookie

As long as you size the chain correctly, the worst that will happen is that it will be a bit slack in small small, which you shouldn't be in anyway.....

Chunkers1980

It's a double. All gears should be useable. If you're stuggling and always hitting your long cage mech then a medium is not going to be that different. I'd work on techniques to stop bashing your mech first

The Rookie

On a double you should still avoid the two extremes of big big and small small....

I do agree about technique though, will 10mm make that much difference? Also make sure the current chain is sized correctly.

Giraffoto

I have a medium cage XT mech with 26/38 at the front and 11-32 at the rear, and it survives the occasional big-big or small-small gear selection. If you can avoid those two extremes, I suspect you'd be OK with your setup.

Chunkers1980

You're 2 under, he'd be 2 over. Like I said I wouldn't even with a slack chain in small small.