This past week I obtained a 1977 R100/7 in original condition with only 9,350 miles from the original owner. The original owner is a lady in her 70s who bought the bike along with a matching R100/7 with an ex-husband in 1977. Three years later they divorced and a year later she remarried. Her new husband did not like motorcycles and it has been ridden but about once a year for the last 32 years. The same mechanic has been doing an annual service and the bike runs great. I've put 450 miles on it in the last few weeks. There is no rust, some of the rubber is cracked, but overall it is in great condition. It was stored in a barn in a very dry part of WA State. My question is the value of this bike? Anyone have an idea on the range?