Any tire can pop if you hit something hard enough,even car tires. Like FatherAlabaster asked,was the tube popped,or did you find two slots? If the tube is just torn up,then you had a blowout because you hit something hard. If there are two slits,then it pinch flatted. Blowouts can happen with any high pressure tire,you just have to not hit the big potholes. Pinch flats can happen with any tubes,you just have to be careful to install them properly,and keep your tires aired up.