I am quite new in the world of urban cycling and I am liking it A LOT. for the sake of curiosity I want my wheels to be as hard as possible, know how this feels and how my bike behaves.
As of now, I have a set of Schwalbe Marathon Plus 25-622 28x1.00 (700x25C) tires with their complement bicycle tubes Schwalbe 28" 700C. They are the slimmest that I have found for my rims. The sidewalls of my tires are labelled with 6.0-8.0 bar 85-115 psi.
Unfortunately, I have twice tried to inflate my tires to their maximum pressure and the inner tubes blew out while inflating! It has been impossible for me to reach the 8 bar.
So I have the following questions:
Am I stretching the inner tubes over their limits? Cuz the 8 bar is a limit of the outer tire. Am I using the wrong tubes? Are there other tube-brands that can handle more pressure?
Is there a better tire/inner tube option/combination available for super-high-pressured-tires?