How do you measure the risks? As a kid the bike I had and the tubes would probably go up to 40 psi. Now it can go up to 100 psi. Does that make a difference? As a kid the kind of material used in tubes, and where it comes from, does that make a difference?

The risk of a major failure is the loss of control of the bike and into a traffic lane. Or just no traffic but on a fast descent resulting in a fall. How much money would that cost?