I have a Quickie S-646 that I only use for doing things around my yard, summer mostly, but some winter use. It's due for new tires, current size is the 8" rim, tires are 3-4" wide and 13" overall height I think. I'll have to get the exact specs on them. Since it only sees outdoor use I want something that will give me much better traction than the standard primo tires, and I'm trouble finding anything.
Wondering if others have done this and what tires they know work? So far the only thing i can find for an 8 inch diameter rim, and narrow enough and with good tread, is these snowblower tires: https://simpletire.com/kenda-4.808-074780820a1-tires I would gain a little overall tire diameter and ground clearance, so I would likely need to upsize my front tires a bit as well to balance the chair back out.