Sidewall repeatedly splitting in same place on rim Good afternoon, folks. Wondering if anyone has had this or a similar issue:
I blew a tire a few weeks back and replaced the tube and tire after thoroughly inspecting the rim for damage. After a few rides the air in my tire let go while sitting in my living room. The sidewall had spread open and I assumed it was faulty rubber. I've since replaced the tire twice and each time, after a few rides, the sidewall splits at the same place on the rim. I've inspected the rim and there seems to be no visible damage but it's starting to get expensive to troubleshoot. Below is a picture of similar damage to illustrate (not my tire but same result)
Thanks for any input!
Mark and note where the split happens on the rim. It's possible that the fault on the rim is only discoverable when the tyre is inflated. Perhaps, there is a crack in the rim. If you have a pair of callipers, measure the width of the rim with the tyre inflated and uninflated. This may highlight such a crack/failure.

Also check the geometry of the wheel by slowly turning it and examining the rim at the brake block as it rotates.

If either of these tests show problems, the rim should be replaced