Aprilia RS 125 (1999-02) vs Aprilia Atlantic 500 (2007-09)
Comparison technical specifications
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| Make: | Aprilia | Aprilia |
| Model: | RS 125 | Atlantic 500 |
| Years: | 1999-02 | 2007-09 |
| Engine: | Single cylinder, two stroke, reed valves induction | Four stroke, single cylinder, SOHC |
| Capacity: | 125 cc / 7.6 cu in | 460 cc / 28.1 in |
| Bore x Stroke: | 54 x 54.5mm | 92 x 69 mm |
| Compression Ratio: | 14.5:1 | 10.5:1 |
| Cooling System: | Liquid cooled | Liquid cooled |
| Induction: | Dell'Orto VHSB 34LD | Electronic fuel injection |
| Starting: | Electric | Electric |
| Max Power: | 24.8 kW / 34 hp @ 11000 rpm | 27.5 kW / 37.4 hp @ 6750 rpm |
| Max Torque: | 25 Nm / 2.5 kgf-m / 18.4 lb-ft @ 9000 rpm | 42 Nm / 4.3 kgf-m / 31.0 lb-ft @ 5500 rpm |
| Transmission: | 6 Speed | Automatic with continuous variator |
| Final Drive: | Chain | V-belt |
| Front Suspension: | Upside-down forks, Ø 40mm | Hydraulic fork, Ø35 mm |
| Front Wheel Travel: | 120 mm / 4.7 in | 105 mm / 4.1 in |
| Rear Suspension: | Monoshock | Engine acting as swingarm. Two gas filled shock absorbers with 5 position spring preload adjustment. |
| Rear Wheel Travel: | 120 mm / 4.7 in | 90 mm / 3.5 in |
| Front Brakes: | Single 320 mm discs, 4 piston caliper | 2 x Ø260 mm disc, 3 piston calipers |
| Rear Brakes: | Single 240 mm disc, 2 piston caliper | Single Ø220 mm disc, 2 piston caliper |
| Front Tyre: | 110/70-17 | 120/70 -14 |
| Rear Tyre: | 150/60-17 | 140/60 -14 |
| Dry Weight: | 115 kg / 254 lbs | 199 kg / 439 lbs |
| Fuel Capacity: | 11.5 L / 3.0 US gal | 15 Litres / 4.0 US gal |
| Standing ¼ Mile: | 14.3 sec / 148.0 km/h / 92 mph | 16 sec |
| Top Speed: | 171.3 km/h / 106 mph | 161 km/h / 100 mph |