Hello,
I have 700x45 Bontrager H5 tires and are using a topeak d2 smartgauge to check my pressure. The tire says to inflate to 60 psi/4.1 bar to 80 psi/5.5 bar. I cant inflate the tire to that much pressure. I'm afraid it will blow. tire gets rock hard and 30 psi seems more like it. My tire pump cant even get near to those pressures. Please help, I'm using 30 psi till i figure it out.

Thank you