I have a set of rims I printed for dad's road car which is a Nissan 300ZX from the 80s. It is now just for display and the rims are the slotted bronze colored Halibrands. They are 1.7"/43mm diameter and 30mm wide. There are lots of tires for those rims, but they all seem to be for off road trucks. I can get 40mm and 24mm wide road tires. So, I need to either figure out how to scale the outside down to fit the other tires or find some 43x30mm tires. I don't know how to scale the diameter without changing the inside where the bearings press in. I can then use the current rims on my stadium truck as I can find many dozens of tires for the truck in that rim size.
Any clues? I like the Protoform tires but I can't find any info on inner diameter.
These from Tamiya would be good but I have to resize the rims for them to fit. I know this because I happen top have a set of these for a different car.
https://www.tamiyausa.com/shop/rc-support/parts/tiresspareoption/?page=2
