Found a belt on the McMaster-Carr website that may serve as a good rubber track for the project.
It is a double-sided timing belt with traction ribs on both sides. Its 1" wide and 81 3/4" length (longest option). Seems like an interesting option similar to the other rubber track examples.
One unknown is how to mate this type of track with pully or bicycle rim.
|Part Number: 7891K125||