Obviously it confused you, special needs?I'll explain, i often see crazy farang riders on motorbikes those same people are probably just as bad in cars, the driver was half falang
the tube you'd get is a 700, usually they come in a range 23/25, 25/28 even 25/32, so anything which includes 28 in the range, i think a 28 tube would be about 80 psi, i use 25s and have 100 psi