what tires do you use on your bike? Mine was equipped with Continental TKC80's (twinduro's). I found them too knobby for hard road use, so I changed them after 300 km for TKC70's. Which are called "twinduro" too. However their name, today I did some 10 km off-road and, they are far too slippery. Is there something like the best of both worlds?