Hello Mike
I think that the Ninco banked curve support should work just fine with Scalextric. It surprises me though, that they do not sell/provide the same track accessories in America as they do in Europe. The accessories should be "default" on all markets. If you still feel uncertain if the Ninco "supports" will fit your Scalextric track. Then you can always order from a European vendor for Scalextric. You should then have them within a week.
Regards
Eric
I think that the Ninco banked curve support should work just fine with Scalextric. It surprises me though, that they do not sell/provide the same track accessories in America as they do in Europe. The accessories should be "default" on all markets. If you still feel uncertain if the Ninco "supports" will fit your Scalextric track. Then you can always order from a European vendor for Scalextric. You should then have them within a week.
Regards
Eric