Where's the "scientific method" tests that show, going over Niagara Falls in a barrel, will kill you? I've linked to writers who discussed the reasons why a cycle magazine would not literally DO what you endorse. Specifically, "Reckless Endangerment." They have liability issues to consider. That's why they don't disconnect the front brakes on some cycles to prove, as some chopper advocates used to claim, that the front brake was unnecessary. And that's why they don't put a car tire, or a truck tire, or a tractor tire, on their cycles for a test. They're smarter than you, IOW.