[RoughDobermann]

120 psi and a very thin wall of rubber = flats. Yes, they could put thicker rubber on, but the weight would be excessive.

[BlazingArizona]

120 psi and a very thin wall of rubber = flats. Yes, they could put thicker rubber on, but the weight would be excessive.

I've asked quite a few cyclists about this, and apparently there are urethane-filled tires out there that are pucture proof. So why don't cyclists use them? The urethane-filled tires weigh slightly more, so racers can't use them. But for those millions of recreational cyclists out there on the trails who wouldn't notice few ounces of extra weight, this should be a godsend. So why don't THESE folk use the new tires? The answer I keep getting is that cyclists "won't try anything new". They will spend thousands on every latest quarkonium-unobtainium frame, but they won't invest a little in something that would save them a lot of aggravation.

[IYAS9YAS]

120 psi??? Gads, when I rode, the max was about 45...I blew out a tire on my BMX bike in the 80s with 35 psi...just sitting in the driveway in the sun. Is your screen name a description of how the ride on 120 psi feels? LOL.

The problem with where I live is there are precious few nearby trails for bikes and it takes a drive to reach them. When I was a kid, we could ride all over town and only had to be really careful on a few roads.

Now, every road is jam-packed with traffic and the town has tripled in population and about doubled in area.

Not safe for kids to ride in the streets anymore.