[woodcote]

Really tricky to get Paul Gages in the UK these days, but worth trying Slot Car Supplies. In my notebook I have the size as PGT 22103XD for the Carrera classic NASCARs - that’s the early 70s cars. The 50s cars take a narrower tyre: PGT 21093XD.

If you have no luck, Mike D has made some similar urethanes for our WHO Digital Carrera classic Nascar class. He may be able to spare four pairs for a fellow Sport user. He is mikefi here.