The wheels are 16" so are the Pizza pans. that said, there is a nice gap of about 1/2" all the way around the pizza pan (I could not find 17" at a good price (under $12 each)).
I have looked at the wheel clip idea before, I do not think it will work for me.
Why should I add a grease hub when there is none on the car to start with? The bearings are all internal to the drive assembly.
Why I wanted holes for the valve stems was to check the air without having to remove the covers (the stems fit under the pan just fine)
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