Comparison of Aprilia RX 50 Racing 2006 and Kawasaki KX 85 2014 [S]ave
| Attribute |  Aprilia RX 50 Racing 2006 × |  Kawasaki KX 85 2014 × |
|---|---|---|
| General | ||
| Production from (year) | 2006 | 2014 |
| Make | Aprilia | Kawasaki |
| Model | Aprilia RX 50 Racing | Kawasaki KX 85 |
| Category | Enduro / offroad | Cross / motocross |
| Engine and transmission | ||
| Engine type | Single cylinder, two-stroke | Single cylinder, two-stroke |
| Fuel system | Carburettor. Dell’Orto PHBN 16 | Carburettor. Keihin PWK28 |
| Displacement (cm³) | 49.7 | 84 |
| Cooling system | Liquid | Liquid |
| Transmission type,final drive | Chain | Chain |
| Bore (mm) | 40.3 | 48.5 |
| Stroke (mm) | 39 | 45.8 |
| Gearbox | 5-speed | 6-speed |
| Ignition | Electronic capacitive discharge | Digital CDI |
| Lubrication system | Separate mixing variable capacity load | - |
| Compression | 12.0:1 | 10.0:1 |
| Exhaust system | Exhaust pipe with catalyser | - |
| Chassis | ||
| Front suspension | - | 36mm inverted telescopic cartridge fork with 18-way compression damping / 10.8 in. |
| Rear suspension | - | Uni-Trak single-shock system with 4-way compression and 16-way rebound damping, plus adjustable spring preload / 10.8 in. |
| Front brakes | Single disc | Single disc |
| Rear brakes | Single disc | Single disc |
| Frame type | - | High-tensile steel perimeter design with subframe member |
| Front tyre | 80/90-21 | 70/100-17 |
| Rear tyre | 110/80-18 | 90/100-14 |
| Trail (mm) | - | 89 |
| Rake (fork angle) (degree) | - | 27 |
| Other | ||
| Starter | Kick | - |
| Color options | - |
|
| Dimensions | ||
| Wheelbase (mm) | 1,400 | 1,255 |
| Kerb weight (kg) | - | 69 |
| Dry weight (kg) | 98 | - |
| Overall length (mm) | 2,060 | 1,821 |
| Overall width (mm) | 880 | 734 |
| Seat height (mm) | 940 | 841 |
| Ground clearance (mm) | 350 | 340 |
| Performance | ||
| Fuel capacity (l) | 9.5 | 5.68 |
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