BMW R 68 (1952-54) vs BMW R 75/5 (1969)
Comparison technical specifications
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| Make: | BMW | BMW |
| Model: | R 68 | R 75/5 |
| Years: | 1952-54 | 1969 |
| Engine: | Four stroke, two cylinder horizontally opposed Boxer, pushrod operated 2 valves per cylinder. | Four stroke, two cylinder horizontally opposed Boxer, pushrod operated 2 valves per cylinder. |
| Capacity: | 594 cc / 36.2 cu in | 745 cc / 45.5 cu in. |
| Bore x Stroke: | 72 x 73 mm | 82 x 70.6 mm |
| Compression Ratio: | 8.0:1 | 9.0:1 |
| Cooling System: | Air cooled | Air cooled |
| Induction: | 2 x Bing 1/26/9 - 1/26/10 carburetors | 2 x Bing constant depression carbutetors |
| Ignition: | Magneto ignition | Battery ignition |
| Starting: | Kick | Electric |
| Max Power: | 26.1 kW / 35 hp @ 7000 rpm | 36.8 kW /50 hp @ 6200 rpm |
| Front Suspension: | Telescopic front fork with hydraulic damping; plunger type | Telescopic hydraulic forks |
| Rear Suspension: | Spring with coil compression springs and rubber deflection stops | Long swinging arm with strut. 125mm wheel travel |
| Front Brakes: | ∅200mm Drum duplex full hub | ∅200mm Drum |
| Rear Brakes: | ∅200mm Drum simplex full hub | ∅200mm Drum |
| Front Tyre: | 3.50 - 19" | 3.25 - S19 |
| Rear Tyre: | 3.50 - 19" | 4.00 - S18 |
| Wet-Weight: | 190 kg / 422 lbs | 210 kg / 463 lbs |
| Fuel Capacity: | 17 liters / 4.4 US gal | 24 Litres / 6.3 US gal |