Does anyone know where I can find 6 in pneumatic wheels from an approved vendor for FRC
I’ll just note that FRC doesn’t have a lot of restrictions on “approved vendors” (most companies qualify, see the definition of VENDOR in section 9 of the manual). So you can buy pneumatic wheels from just about anywhere (e.g. McMaster-Carr sells pneumatic wheels designed for carts and the like that could be adapted for use on a robot). Some companies (e.g. AndyMark and REV) cater to the FIRST market and will often offer products that more easily integrate into robots, e.g. pneumatic wheels with hubs that have 1/2" hex shafts or bolt patterns that are common in FIRST-targeted products, but uncommon in wider industry.