Originally Posted by
smashndash
I'd say they're worse than rare. They're dangerous. Also, I'm 90% sure it has much more to do with the rim design than the tire.
My Vittoria Corsas snap on TIGHT to my LB rims but straight up DO NOT stay on my Boyd altamonts. I refuse to use TL on insecure bead seats. That's a death trap.
I run my pressures really low. As low as 40ish psi in a 25mm tire. If the bead unseats or burps in a corner and the tire comes off or loses air, I am screwed.
I suspect this is true. Some rims appear to not even have a "bead lock hump". Looking at you DT ..