This after­noon I set out to fix my flat front tire with a new Schwalbe mod­el. I had pur­chased some Schwalbe tubes along with the tires five months ago so decid­ed to use one of those today.

Get­ting the tire and tube on the rim was a chal­lenge so after inflat­ing the com­plet­ed assem­bly to 85psi I decid­ed to check it under water to be sure I had­n’t cut the tube. All was going swim­ming­ly, I was almost com­plete­ly 360 degrees around the check when BANG! (see image one below)

It was quite a LOUD shock. Image one below shows the new tube and tire post water check. Back track­ing through the tube box I found (and then read) a small brochure that empha­sized the tubes upper lim­it of 5 bar. Turns out 5 bar is 72psi. I’ve nev­er expect­ed a tube to be so lim­it­ing. Oh well. Back to a stan­dard REI 700cx28 tube. 

Here is the tube tire com­bo after the BIG BANG.
I’m think­ing I don’t have a large enough patch on hand