BITD, we built up bikes with coaster brakes & front calipers.... called them "super trashmos". I wrote an article for "Bike World" describing
the bikes and it was published! I think I got a free years subscription as payment. Geared them in the upper 60's and used them for training
in the spring when I didn't want to get my "good" bike dirty. This would have been 75-77.