Hoorah! At last! Looks nippy - I also manage with a compact double on my road bike, though I've put a 27 tooth on the back.
Nice bike, with proper coloured seat and bar tape. You can always fit a bigger rear block and a smaller front ring and a box of goodies is never to be sniffed at.
It's the 9-speed, Pete, so it's a 12-25 as you suspected. I'll take your advice and head off to the Beacon! That's one of my targets, having failed to get up it at my first and only attempt so far. I don't think the shop would put up a fight about any changes I wanted to make - they were very embarrassed. The whole saga's not a very good advertisement for Orbea!