Designed by Max Friz and introduced in 1923, the first BMW motorcycles were fitted with 493cc horizontally opposed twin-cylinder sidevalve engines. The 750cc models, the R62 and R63, reached the market in 1928. The R62 retained the sidevalve configuration while the sports oriented R-63 had a shortstroke overhead-valve powerplant coupled to a stronger gearbox with a kickstart mechanism which became the standard for the marque for the next 50 years.
The front brake was more powerful, and electric lighting was now standard across the range.
A modified version the R-63 was ridden by Ernst Henne when he achieved a worl speed record in 1929.
Production Years: 1928-1929
Displacement: 735 cc
Engine: 4-stroke OHV Twin, Type M 60
Compression Ratio: 6.2:1
Cylinders: 2
Power: 24 hp @ 4,000 rpm
Weight: 152 kg wet
Top speed: 120 km/h
Fuel tank capacity: 12.5 litres
Production numbers: 794
