Currently in the proces of rebuilding this 1979 Koga-Miyata ProRacer. I bought it around 2010. This is a Tange Champion #2 tubing frame bike with Dura-Ace EX. The bike is 100% original including hoods, cotton tape etc, but atm the wheels are from a 1980 GentsLuxe-S. Not long to go before it is finished.