Well I feel like a bit of a fool, shaving .5mm off the inner ring's side (what I was calling the depth) allowed me to get one tire mounted. I was first able to mount one tire poorly where it forced the bead out but it hung on to the thinnest part of the bead still which indicated to me they are too wide to accommodate the bead side to side (as well as up and down).
So while taking off the .5mm did allow me to get the tire mounted it was still a major operation just getting the tire to squeeze into place. Theres no extra room so when its seated between the ring and wheel body the rubber wont slide it just grips and wants to roll. So i wet down the beads to get them to slide a bit pushed them together and gave it some time for the water to dissipate before tightening the wheel down as I think the water would just pop the bead at that point.
you can see how tight the fit is here, it cant just be slid on it needs to be forced.
It took maybe 45 minutes to get to the point where I start to put the screws in.
So while taking off the .5mm did allow me to get the tire mounted it was still a major operation just getting the tire to squeeze into place. Theres no extra room so when its seated between the ring and wheel body the rubber wont slide it just grips and wants to roll. So i wet down the beads to get them to slide a bit pushed them together and gave it some time for the water to dissipate before tightening the wheel down as I think the water would just pop the bead at that point.
you can see how tight the fit is here, it cant just be slid on it needs to be forced.
It took maybe 45 minutes to get to the point where I start to put the screws in.
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