>>1734285No problem. People run slicks in that size mostly for novelty. If you want something more readily available, and if you just want to make your mountain bike better on the road there's no reason you can't get something thinner. The only limiting factor will be your internal rim width. 40c – 45c are popular sizes these days so I'm sure you would find something suitable at a reasonable price in that size. Rims with internal widths between 18mm and 30mm should be able to run those sizes comfortably. Just make sure the first measurement is 700c/29" as that's the rim size.
