The Slash 5 series (R50/5, R60/5 and R75/5 of 500, 600 and 750cc) was announced for the 1970 season and represented a revolution in BMW motorcycle design. Though the flat-twin BMW boxer engine layout remained, just about everything else was new.
BMW R60 /5

Years produced: 1970-1973
Claimed power: 46hp @ 6,600rpm
Top speed: 102mph
Engine type: 599cc air-cooled OHV opposed twin
Transmission: 4-speed
Weight: 440lb (wet)
MPG: 45-50