| MODEL | BMW R 27 1960 - 1966 |
| Year | 1960 - 1966 |
| Engine Type | Four stroke, single cylinder, pushrod operated OHV, 2 valves per cylinder, rubber mounted |
| Displacement / Capacity | 247 cc / 15.1 cu in |
| Bore X Stroke | 68 x 68 mm |
| Compression Ratio | 8.2:1 |
| Cooling System | Air cooled |
| Max Power | 13.4 kW / 18 hp @ 7400 rpm |
| Max Torque | — |
| Ignition | Battery ignition |
| Induction | 1x Bing carburettor type 1/26/68 |
| Start System | Kick |
| TRANSMISSION SPECS | |
| Lubrication | — |
| Gear Box | 4 Speed |
| Clutch | Single plate, dry |
| Final Drive | Shaft |
| CHASSIS SPECS | |
| Frame | Steel twin loop frame, welded |
| Front Suspension | Earles-type leading link fork |
| Rear Suspension | Long swing arm with suspension units and oil pressure dampers |
| Front Brakes | 160 mm drum |
| Rear Brakes | 160 mm drum |
| DIMENSION SPECS | |
| Overall Length | — |
| Overall Width | — |
| Overall Height | — |
| Seat Height | — |
| Wheelbase | 1379 mm / 54.3 in |
| Ground Clearance | — |
| Dry Weight | — |
| Wet Weight | 162 kg / 357 lbs |
| WHEEL SPECS | |
| Front Tyre | 3.25 x 18 |
| Rear Tyre | 3.25 x 18 |
| FUEL SYSTEM | |
| Fuel Capacity | 15 Litres / 4.0 US gal |
| Fuel Consumption | 3.9 L/100 km |
| Top Speed | 130 km/h / 81 mph |
Photo: Jeff Dean (en.wikipedia), CC BY-SA 2.5, via Wikimedia Commons
Photo: Verein der Freunde und Förderer der Wehrtechnischen Studiensammlung Koblenz e. V., CC BY-SA 4.0, via Wikimedia Commons
The R 27 was the last of BMW's post-war shaft-drive singles, keeping the R 26 chassis but mounting the engine on rubber blocks to cut vibration. A higher compression ratio and bigger carburettor lifted output to 18 hp. Production ended in 1966 after 15,364 units, and BMW did not build another single until 1993.
