The /5 series was BMW’s first model line to be manufactured in Berlin, as by 1969 all of the company’s Munich plant capacity was needed for cars. In standard trim the R75/5’s OHC 749cc engine was fuelled by two 32mm Bing carbs and it made 50hp at 6,400rpm with 43lb/ft @ 5,000rpm. With a 4-speed gearbox and shaft final drive it weighed 210kg wet, and it was good for 110mph.
Using factory race parts, the Imola-spec racebike offered for sale here was prepared by Bonfino (Italy’s oldest BMW Motorrad dealer) to the same specification as works BMW rider Helmut Dahne’s. (Among other achievements, Dahne finished 4th for BMW in the 1972 and ’73 Isle of Man 750cc Production TT races.)
With a Fontana magnesium front brake and Ceriani forks, this BMW is also fitted with a large capacity alloy ‘endurance racing’ fuel tank, 35mm Dell’Orto racing carbs and electronic ignition. It competed in endurance events during the 1972 and 1973 seasons at Imola, Monza, Vallelunga and Barcelona, ridden by Menichelli (who’s signature is in the leather tank strap), Tasso, Marchetti and Buscherini. The bike was in Rome for more than 20 years and was paraded by John Surtees at a Vallelunga classic meeting.
More recently it has been raced by Tasso in classic bike meetings in France and Italy, and it has been in the same ownership since 2010. This sporting BMW boxer racer is presented in original, unrestored condition.