The Mutanoraptor 2.4's are 2.4 inches tall but not as wide on XC rims, about 1/8thinch narrower, about 2.25 really. They actually ride well with 5 psi lower pressure than a true 2.4 wide tire can in my experience, I think that wider tires wallow sideways more on narrow rims than wider tires with the same air pressure.aztec said:Thanks alot guys am going to go ahead and place my orderohh and by the way what do you guys think of those tires?