Is there one? ie can I use High Roller 2.4’s for example?

I’ve got 2.4 nobby nics on mine.

Hmmm, just put a 2.5 & a 2.35 minions on mine without thinking of this question. They went on no problem, but I havnt rode it yet though.

Be careful, I found my arch EX rim to be made of cheese.

I use Maxxis advantage 2.4s on my crests, so the Arch EX should be fine with the same – not sure on Arch, but probably ok. Crests have been a little ding prone but not to a daft extent after 2 years of peaks etc riding (especially considering how light they are).

Mmmmm. Thinking of a Minion 2.5 on the EX, which i beleive is wider than my standard Arch. And Minions come up smaller so would be interested to see how it goes Mr Rag

I run 2.4 Nics on my Crests with no issue, and they’re wider than a 2.5 Minion.

Can’t see an issue.

Conti Mountain King 2, 2.4’s on mine no problems.