[6] Only one R7 was ever made, which Böning disassembled and stuck away with design plans in a BMW warehouse.

Hans Keckeisen in Munich began a restoration on behalf of the BMW Museum, completed 2012.

[7] After appearing in European bike shows, restored 1934 R7 was first shown in the US at the Pebble Beach Concours d'Elegance.

The BMW R12 had a four-speed manual gearbox, operated by a hand shift lever on the fuel tank's right side.

Front suspension used a telescopic fork, while the frame was rigid with an un-sprung rear end supporting the final drive and a sprung seat for the rider.