(2018-08-18, 20:28)Chris Dee Wrote: What do you mean by 'user adapted'? Did you cut the original part to make a narrow tyre?
If you look carefully at all the pictures, you will see that he's simply making use of the natural flexibility (and stretchiness) of the rubber of the part. So the outer tread becomes sidewalls, while the inner tread becomes the entire tread.