Thanks for all the responses guys! I think I may try pumping them up to like 48psi or so to leave a little room for pressure increasing on a longer ride. I was just kinda concerned at max psi with my weight it might have been too much pressure for the tube or another part would maybe give. I feel confident about pumping them up more now. I will definitely go ahead and order and extra tube and tire for when the day comes though. Thanks again for all the advice.