Possibly looking at going 1x9 or 1x10 even on my Zesty. Which chain device would be suitable? I don't want a full on DH style top and bottom roller set up, just something that guides the chain instead of the front mech.
It has to be ISCG due to it being a press fit bb. Something like this Superstar XCR but ISCG would be ideal.
I'm not trying to make it hardcore, just get rid of front gear shifts.

