If you are from Australia I'm very happy with hooby. I don't know how the shipping works tho. Probably is not too expensive.
https://hobbiesdirect.com.au/spare-parts/tyres-wheels-and-rims/
I got hooked up last couple of years on f1 from DTS, so I've decided to buy couple of f1 cars from here this month https://hobbiesdirect.com.au/scale-models/formula-1/