Weld them together:
Making of the deep dish LPG Bombe!
And you are done!
One deep dish LPG Bombe rim!
Found at Zeppann13J’s blogby banpei with no comments yet
I knew you could widen steel rims by cutting the bead and welding sheetmetal in between. With this method the rims will always be a bit weaker than before and really wide rims are not advisable to make this way. So how about using a butane gas cylinder to widen a 14 inch 5J steel rim to 13J?