@marc two tone: Thanks for your nice words mate. Actually i bought this frame from Philleeds. He's from Watlington. So one or two of this thingies must must have been available in the UK at some point, too.
I know it's a shame to look at a mountain bike with some road tyres fitted.
And i'm happy that these dark times lie behind my unworthy soul.
But the real reason for the new tyres was this:
Took the Muirwoods for a quick spin this morning to see how the Bontrager XR feel. They got a nice sound on tarmac and all the joints in my body feel a lot better at the lower tyre pressure.
Some slighty better phone pics than before for your viewing pleasure: