It's probably, but not certainly, meant for 26" wheels.
Most cars have a chart on the door frame that gives the recommended tire pressure.
The surface area of a cylinder with a radius of 15in and a height of 34in is 4,618.14in2
47.12 in.
Because the wheel will rub / hit the front brake cailbers and rear drums. The 91 was built for 16 inch wheels, are bigger
The tire size will affect the mileage and performance. You can use a larger wheel with a smaller profile tire without noticeable affecting either.
6000000000000000 or =6*10^15In Excel it would be 6E15
15in = 38.1cm
87 in.
D=15in
15 = fifteen
3375 in3
16yd 44in