As title really. My new SCR3 has tyres which are basically slicks. There's a kind of token tread pattern at the edge of the tyre but nothing at all in the centre. As an MTB'r I'm used to seeing a couple of inches of lumps and bumps snagging the asphalt, this smooth rubber is a bit disconcerting to say the least. IIRC, the tread on car tyres is designed to channel the water from the road and kind of clear a path for itself through the water. Is it the case that roadie tyres are so thin they cut through the surface film anway?