I got the 2.5 x 29" and have it on the front wheel of a hard tail single speed. It installed just fine without too much effort. I immediately noticed that it is a heavy tire. That' the trade-off for how much protection/tear resistance it has. I ride in the desert southwest - from dry hard pack to loose dirt/rock (nothing wet/muddy). It's the widest tire I've ever ridden on the front. That and the side knobbies provide really good traction when cornering. Its a great tire if you want the traction and stability and can live with the extra weight.;