When Mr. Tiemeyer had down time between custom jobs, he would make some track frames using standard geometry and have them on hand for painting and quick delivery. This came in handy when a person needed a frame within a week or so (after a crash, didn't need custom geo, simply impatient). These were sold at a lower price than the custom frames. I'm sure that some of these are still being ridden. If you have one, this *might* be your geo chart:
Small:
Medium:
Large:
