just a heads up that I finally found tyres with my magic numbers!! eventually in Barranquilla in Colombia I found the Multi D in 215/75R/17.5. although they are drive tyres, I've mounted them on all wheels and am quite happy with how it feels. we've had highways, dirt roads, some mud and lots of mountains and so far the grip is very good and steering not as stiff as I thought. only thing is that the steering wheel is vibrating slightly when braking, which is strange as everything has been aligned and balanced and the brake pads were recently replaced.