Comparison of Keeway RX3 and Lem Recreational Four X [S]ave
| Attribute |  Keeway RX3 × |  Lem Recreational Four X × |
|---|---|---|
| General | ||
| Production from (year) | 2007 | 2007 |
| Make | Keeway | Lem |
| Model | Keeway RX3 | Lem Recreational Four X |
| Category | Sport | Sport |
| Engine and transmission | ||
| Engine type | Single cylinder, two-stroke | Single cylinder, four-stroke |
| Displacement (cm³) | 49.8 | 107 |
| Power (kw) | 9.3 | 5.1 |
| Cooling system | Liquid | Air |
| Transmission type,final drive | Chain | Chain |
| Bore (mm) | 1.5 | - |
| Stroke (mm) | 0 | - |
| Gearbox | - | 4-speed |
| Fuel control | Overhead Cams (OHC) | Overhead Valves (OHV) |
| Ignition | Electronics with micro prossesor | CDI |
| Clutch | Wet clutch | - |
| Exhaust system | Expansion with silencer | With silencer |
| Chassis | ||
| Front suspension | - | Hydraulic Front Fork |
| Rear suspension | Monoshock | Hydraulic monoshock |
| Front brakes | Single disc | Single disc |
| Rear brakes | Single disc | Expanding brake (drum brake) |
| Diameter (mm) | - | 80 |
| Frame type | Steel tubes with alluminium swing-armi brake pedal and rear body | Oval steel tube frame |
| Rear wheel travel (mm) | 48 | - |
| Rake (fork angle) (degree) | 7.3 | 5.5 |
| Other | ||
| Starter | Electric & kick | Electric & kick |
| Color options |
|
|
| Dimensions | ||
| Wheelbase (mm) | 985 | 1,010 |
| Dry weight (kg) | 42 | 61 |
| Power/weight ratio | 0.2214 | 0.0836 |
| Overall length (mm) | 1,360 | 1,415 |
| Seat height (mm) | 686 | 670 |
| Ground clearance (mm) | 270 | 215 |
| Performance | ||
| Fuel capacity (l) | 2 | 2 |
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