I just bought a used bike and the tires that came with it are pretty knobby on the sides so that it's not that smooth of a ride on pavement. I'm looking at getting either Kenda K-rad's ($28 at LBS) or DMR Moto RT's ($30 at LBS) to use for around town and some light trails. I've read the reviews for both on MTBR and it seems they are both adequate for my purposes. Anyone here have any opinions on either of these tires?