BMW R 2 (1931-36) vs BMW F 650 ST Strada (1999)
Comparison technical specifications
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| Make: | BMW | BMW |
| Model: | R 2 | F 650 ST Strada |
| Years: | 1931-36 | 1999 |
| Engine: | Four stroke, single cylinder vertical | Four stroke, single cylinder, DOHC, 4 valves per cylinder |
| Capacity: | 198 cc / 12.1 cu in. | 652 cc / 39.8 cub. in. |
| Bore x Stroke: | 63 x 64 mm | 100 x 83mm |
| Compression Ratio: | 6.7:1 | 8.8:1 |
| Induction: | 1 x Amal push in carburetor ∅18.2 mm | 2 x ∅33mm Mikuni carburetors |
| Ignition: | Battery ignition | Digital |
| Starting: | Kick | Electric |
| Clutch: | Single plate, dry | Multi plate in oil |
| Max Power: | 6.0 kW / 8.0 hp @ 4500 rpm | 35 kW / 48 hp @ 6500 rpm |
| Transmission: | 3 Speed | 5 Speed |
| Final Drive: | Shaft | Chain |
| Frame: | Pressed steel duplex frame | Single loop tubular with bolt on trussing |
| Front Suspension: | Cantilever spring, 9 laminae with friction shock absorber | 41mm Telescopic forks non adjustable. |
| Rear Suspension: | Rigid | Rising rate monoshock preload adjustable. |
| Rear Brakes: | ∅180mm Drum | Single ∅210mm disc 1 piston caliper |
| Front Tyre: | 3.00 x 25" | 100/90 -18 |
| Rear Tyre: | 3.00 x 25" | 130/80 -17 |
| Wet-Weight: | 130 Kg / 287 lbs | 191 kg / 421 lbs. |
| Fuel Capacity: | 11 L / 2.9 US gal | 17 Litres / 4.5 US gal |