Comparison of BMW R35 1938 and BMW R42 1928 [S]ave
| Attribute |  BMW R35 1938 × |  BMW R42 1928 × |
|---|---|---|
| General | ||
| Production from (year) | 1938 | 1928 |
| Make | BMW | BMW |
| Model | BMW R35 | BMW R42 |
| Category | Allround | Allround |
| Engine and transmission | ||
| Engine type | Single cylinder, four-stroke | Two cylinder boxer, four-stroke |
| Fuel system | Carburettor. SUM CK 9/22 | Carburettor. 20mm BMW Spezial |
| Displacement (cm³) | 342 | 494 |
| Power (kw) | 10.2 | 8.7 |
| Fuel consumption (l/100km) | 3 | - |
| Cooling system | Air | Air |
| Transmission type,final drive | Shaft drive (cardan) | Shaft drive (cardan) |
| Bore (mm) | 72 | 68 |
| Stroke (mm) | 84 | 68 |
| Gearbox | 4-speed | 3-speed |
| Greenhouse gases | 69.6 CO2 g/km. (CO2 - Carbon dioxide emission) | - |
| Fuel control | Overhead Valves (OHV) | Overhead Valves (OHV) |
| Ignition | Batery | - |
| Clutch | Single plate dry-cable operated | Dry-single plate-cable operated |
| Lubrication system | Wet sump | Wet sump |
| Compression | 6.1:1 | 4.9:1 |
| Chassis | ||
| Front suspension | Cartridge | Leading link |
| Rear suspension | Rigid | Rigid |
| Front brakes | Expanding brake (drum brake) | Expanding brake (drum brake) |
| Rear brakes | Expanding brake (drum brake) | - |
| Diameter (mm) | 180 | 150 |
| Frame type | Steel twin looped | Steel doble cradle |
| Front tyre | 3.50-19 | 3.5-26 |
| Rear tyre | 3.50-19 | 3.5-26 |
| Seat | Spring-mounted seat | Single seat |
| Other | ||
| Starter | Kick | Kick |
| Carrying capacity | 200kg | - |
| Dimensions | ||
| Wheelbase (mm) | 1,400 | 1,410 |
| Kerb weight (kg) | 152 | 126 |
| Overall height (mm) | 950 | 950 |
| Overall length (mm) | 2,000 | 2,100 |
| Overall width (mm) | 800 | 800 |
| Performance | ||
| Top speed (km/h) | 100 | 95 |
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