Ive got some Hankook Ventus 225 50 R 16 tyre on the back at the moment, about to change it for a new one as have worn the sides out, treads still like new though. Mate looked at it and said "you should probably go back to a bike tyre by the looks of it" but I like the way its corners with the dark side. On the front I have a Metzler Marathon 140 75 R17 tyre. This works for me.
My old rear tyres were lasting 4000kms this has got three times that so far.
Oddest feeling when you first ride, nearly went back home and put the other wheel back on (got a complete back wheel with a bike tyre on). Bought a whole new back wheel to put the car tyre on in case i didnt like it, I could swap back then fit another bike tyre to this. My hassle is going to a tyre shop and wasting a day in the weekend. The bike tyre never went back on.