Just so people know what we're talking about here:
Speedcity
Change your wheel, not your bike.
The Speedcity (diameter 700c) can fit any MTB, with or without disc brakes (thanks to its optional V brakes adaptors sold separately in the systems & accessories range). It's the perfect training wheel on asphalt for your mountain bike. No excuse for not being in shape when the season starts!
The Speedcity is actually designed for MTB's.