Steel Frame, Lug Welds add on carbon fork. Frame size is 54cm with a mix of Shimano Ultegra, 105 and 600 parts. The wheels are Mavic Open Pros with Ultegra hubs 1k miles. The bike has several thousand miles but is in great shape late 80s frame. There is some cosmetic damage on the paint. The the original top tube shifters have been replaced with 1 Ultegra STI and 1 105 STI The bike has never been crashed.