So, Im talking jeeps with a guy at work and he tells me he runs some 16.5" inch military hummer tires on his 17' wheels .....wait ...What??? I ask?!?!?! He said yep they are a little tight but it works and can air down to 5lbs. and not roll the bead. Sadly I was not able to verify this but is this even possible or is this guy full of it??