Josh my R bike, which I have nicknamed the mongrel, has a 77 R100 frame the previous owner sourced from San Hose BMW. Must have been one of their race frames because it is reinforced around the steering neck as well as several other places. It also has a underbraced swing arm and two side braces. The motor has 1977 R100 cases, R90s cylinders and all the painted parts are R90s Daytona orange. Suspension has been updated and the motor and trans were rebuilt at San Hose BMW less than 3000 miles before I bought it. The carbs were CV.s which I am replacing with the original R90s Delortos.?
