Sounds like junk in the bead. I run my 35x14.5 PitBulls at 25psi front and 15psi rear for the road and I haven't had to reinflate them since I mounted 'em a few months ago. oh, and I check my pressure once a week.
I have gotten sticks stuck in the bead and when you rip em out sometimes they fall apart in to really tiny pieces that get lodged like splinters. Look around the bead and see if anything sticks out. You can also inflate the tire and spray it with some soapy water and see if you get any air bubbles.
I have gotten sticks stuck in the bead and when you rip em out sometimes they fall apart in to really tiny pieces that get lodged like splinters. Look around the bead and see if anything sticks out. You can also inflate the tire and spray it with some soapy water and see if you get any air bubbles.