Maxxis M7304 & M7305 enduro/motocross tyres - Road legal "E" marked
These go for about £90 a set elsewhere. I spoke to Demon-tweeks customer service and they have confirmed road legal. Lots of positive reviews on these tyres, great grip and last longer than most. KTM had these tyres fitted as standard for the EXC range of bikes a few years back.
There are plenty of other sizes available at great prices.