Borthwick's partner was Dave Huff who bought him out when Borthwick (forgot his first name) retired from frame building. Dave still builds bikes including tandem's, but renamed the company Christopher Frames after his son. Dave Huff lives in Marshalltown and his frames can often be found at the Door County Century ride in Wisconsin where he sets up a booth most years. He does a nice job and repainted our Trek tandem with an awesome cow themed design.
DAVID.HUFF@LennoxInd.com