Thanks for all the info guys. The Clewes website got me thinking a lot. It reads:
“We will provide you with everything you need, including your choice of either a latest model WR250F or a WR450F Yamaha Supermoto bike – prepared and maintained by our own professional race team experienced mechanics.”
Time to dig deep I think and try one of these days out. Or maybe buy a bike. Off to get the bike trader first thing in the morning!