End of curb and curb for straight track are not tested yet!

Corners work really well though.

I've already got tired of my wide formula car falling of track in corners:

So I decided to to create some “curbs” for original narrower ITES slot car track, to work with newer wider cars, like for example Tyrell. These are for older track that is 150mm wide, not for newer 180mm track. If your original tabs used for holding the wall are not broken yet, you can just slide the curb on these.

If they are already gone I have a version of curb that does not need these. It simply clips to the track from the bottom: