jjW, I don't know as I haven't bought from Jag. I would suspect they are. I am sure that Jag will be more than happy to share that info with you, maybe! ?!? LOL note, at the bottom of Tom Heisters list are Super Tires which I have never tried. I presume he is reselling those as I think they are made by someone else. if it turns out that they ARE Tom's product I will have to buy some for testing pronto.
Did not know where to post this. So here it is. For all who are wondering what parts are interchangeable between T-jet style chassis,read on. Took me a while to find this but here it is. This was before the Dash-Jet was produced. Thunderjet Parts Interchangability.doc (50.5 KB)