Loads of guys on here seem to use the Olympic rims and as i understand these are the replacement (is that correct?). Obviously they are light (claimed to be as little as 330g) but are they any good or just chewing gum stiffness. I'm about 76kg in weight but tend to be hard on wheels especially rears! There may be a hope hoop build i'd be looking to use but the options for the rims are these and DT4.2's and i dont like these!
any feedback/comments gratefully received.

cheers

Why not get Stans Flows?

I run a 355 up front and an Arch on the rear and no trouble so far, although I do have 140mm travel & run 2.25 Maxxis tyres, which offer a lot of "float". Opted for the Arch on the rear as the rear seems to be one that takes the damage.
Plan to use on hardtail too, so will see how they fare up on there.

The Flow (wider rim – right?) isn't an option in this build i'm afraid.

I usually run 2.1-2.25's and plan to run on a carbon hardtail.