BMW R 69 US (1967-69) vs BMW R 67/2 (1952-54)
Comparison technical specifications
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| Make: | BMW | BMW |
| Model: | R 69 US | R 67/2 |
| Years: | 1967-69 | 1952-54 |
| 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 | 594 cc / 36.2 cu in |
| Bore x Stroke: | 72 x 73 mm | 72 x 73 mm |
| Compression Ratio: | 9.5:1 | 6.2:1 |
| Cooling System: | Air cooled | Air cooled |
| Induction: | 2 x Bing 1/26/9 - 1/26/10 carburetors | 2 x Bing 1/24/15 - 1/24/16 or 1/24/25 - 1/24/26 carburetors |
| Ignition: | Magneto ignition | Magneto ignition |
| Starting: | Electric | Kick |
| Clutch: | Single plate, dry | Single plate, dry |
| Max Power: | 31.3 kW / 42 hp @ 7000 rpm | 20.9 kW / 28 hp @ 5600 rpm |
| Transmission: | 4 Speed | 4 Speed |
| Final Drive: | Shaft | Shaft |
| Gear Ratio: | 1st 4.17 / 2nd 2.73 / 3rd 1.94 / 4th 1.54 | 1st 3.6 / 2nd 2.28 / 3rd 1.7 / 4th 1.3 |
| Frame: | Double loop steel tubular frame | Double loop steel tubular frame |
| Front Suspension: | Telescopic front fork with hydraulic damping | Telescopic front fork with hydraulic damping; plunger type |
| Rear Suspension: | Swingarm, plunger type shock absorbers | Spring with coil compression springs and rubber deflection stops |
| Front Brakes: | ∅200mm Drum | ∅200mm Drum duplex full hub |
| Rear Brakes: | ∅200mm Drum | ∅200mm Drum simplex full hub |
| Front Tyre: | 3.50 - S18" | 3.50 -19" |
| Rear Tyre: | 4.00 - S18" | 3.50 -19" |
| Wet-Weight: | 200 kg / 440 lbs | 192 kg / 422 lbs |
| Fuel Capacity: | 17 liters / 4.4 US gal | 17 liters / 4.4 US gal |