BMW R 61 (1938-41)
Comparison technical specifications
Add bike |
Remove bike |
| Make: | BMW |
| Model: | R 61 |
| Years: | 1938-41 |
| Engine: | Four stroke, two cylinder horizontally opposed Boxer, pushrod operated 2 valves per cylinder. |
| Capacity: | 600 cc / 36.6 cu in. |
| Bore x Stroke: | 70 x 78 mm |
| Compression Ratio: | 5.7:1 |
| Cooling System: | Air cooled |
| Induction: | 1x Amal M75/426 S carburetor |
| Ignition: | Battery ignition |
| Starting: | Kick |
| Clutch: | Single plate, dry |
| Max Power: | 13.4 kW / 18 hp @ 4800 rpm |
| Transmission / Drive: | 4 Speed |
| Gear Ratio: | 1st 3.6 / 2nd 2.28 / 3rd 1. 7 / 4th 1.3:1 |
| Frame: | Twin loop steel tubular frame |
| Front Suspension: | Telescopic fork |
| Rear Suspension: | Telescopic suspension |
| Front Brakes: | ∅200mm Drum |
| Rear Brakes: | External shoe brake at the gearing on Cardan shaft |
| Front Tyre: | 3.00 -19" |
| Rear Tyre: | 3.50 -19" |
| Wet-Weight: | 184 kg / 405 lbs |
| Fuel Capacity: | 14 liters / 3.6 US gal |