Aprilia Tuareg 125 (1988-) vs Aprilia SXV 550 (2006-07) vs Aprilia RS 125 R (2008) vs Aprilia RS 125 Nero (2006) vs Aprilia RSV 1000 Mille (1999) vs Aprilia SX 125 (2018-20)
Comparison technical specifications
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| Make: | Aprilia | Aprilia | Aprilia | Aprilia | Aprilia | Aprilia |
| Model: | Tuareg 125 | SXV 550 | RS 125 R | RS 125 Nero | RSV 1000 Mille | SX 125 |
| Years: | 1988- | 2006-07 | 2008 | 2006 | 1999 | 2018-20 |
| Engine: | Two stroke, single cylinder | Four stroke, 77° V-twin, SOHC | Single cylinder, two stroke, reed valves induction | Single cylinder, two stroke, reed valves induction | Four stroke, longitudinal 60°V twin, DOHC, 4 valves per cylinder | Four stroke, Single cylinder, DOHC, 4 valve |
| Capacity: | 124 cc / 7.6 cu in | 549 cc / 33.5 cu in | 124.8 cc / 7.5 cu in | 124.8 cc / 7.5 cu in | 997.6 cc / 60.9 cu-in | 124.8 cc / 7.6 cu-in |
| Bore x Stroke: | 54 x 54 mm | 80 x 55mm | 54 x 54.5mm | 54 x 54.5mm | 97 x 67.5mm | 58 x 47 mm |
| Compression Ratio: | 15.5:1 | 12.0:1 | 12.5:1 | 12.5:1 | 11.4:1 | 12.5:1 |
| Cooling System: | Liquid cooled | Liquid cooled | Liquid cooled | Liquid cooled | Liquid cooled | Liquid cooled |
| Starting: | Kick | Electric | Electric | Electric | Electric | Electric |
| Max Power: | 18.6 kW / 25 hp @ 9000 rpm | 52.2 kW / 70 hp | 21 kW / 28 hp @ 10500 rpm | 21 kW / 28 hp @ 10500 rpm | 93.3 kW / 128 hp @ 9500 rpm | 15 hp / 10.9 kW @ 10500 rpm |
| Transmission: | 6 Speed | 5 Speed | 6 Speed | 6 Speed | 6 Speed | 6 Speed |
| Final Drive: | Chain | Chain | 17:40 | 17:40 | Chain | Chain |
| Front Suspension: | Telescopic fork | Ø48 mm Upside down fork, double adjustment. | Upside-down forks, Ø 40mm | Upside-down forks, Ø 40mm | Upside-down Öhlins fork, Ø43 mm titanium nitride treated sleeves. | 41mm Upside down telescopic fork |
| Rear Suspension: | Mono shock | Box section aluminium swingarm with cast body, hydraulic monoshock with compression and rebound adjustment | Monoshock, cast aluminium box section swingarm with asymmetric members | Monoshock, cast aluminium box section swingarm with asymmetric members | Swing arm in Aluminium alloy, progressive linkage with APS system. Öhlins Racing hydraulic shock absorber | Hydraulic monoshock absorber with progressive link system |
| Front Brakes: | Single disc | Single Ø320mm disc, 4 piston caliper | 120 mm / 4.7 in | Single 320 mm floating discs, 4 piston radial caliper | 2 x Ø320 mm discs, 4 piston calipers | Single 300mm disc floating caliper |
| Rear Brakes: | Drum | Single Ø240mm disc, 2 piston caliper | Single Ø 220 mm disc, 2 piston caliper | Single 220 mm disc, 2 piston caliper | Single Ø220 mm disc, 2 piston caliper | Single 220 mm disc floating caliper |
| Front Tyre: | 2.75-21 | 120/70 -17 | 110/70-17 | 110/70-17 | 120/70 ZR17 | 100/80-17 |
| Rear Tyre: | 4.60-17 | 180/55 -17 | 150/60-17 | 150/60-17 | 190/50 ZR17 | 130/70-17 |
| Fuel Capacity: | 18 Litres / 7.6 US gal | 7.8 Litres / 2.1 US gal | 14 L / 3.7 US gal | 14 Litres / 3.7 US gal | 20 L / 5.2 US gal | 7.5 Litres / 1.98 US gal |