Supposedly there are reasons (for example, efficiency by avoiding the extra weight) and they give you a kit that's essentially a "fix a flat" product, but in th

Supposedly there are reasons (for example, efficiency by avoiding the extra weight) and they give you a kit that's essentially a "fix a flat" product, but in the 2 times I've had a flat in a car outfitted like this, what they provided wasn't useful, usually due to the type of damage to the tire.