Aprilia SXV 550 (2008-09) vs Aprilia RS 660 Extrema (2023) vs Aprilia SMV 900 Dorsoduro (2019)
Comparison technical specifications
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| Make: | Aprilia | Aprilia | Aprilia |
| Model: | SXV 550 | RS 660 Extrema | SMV 900 Dorsoduro |
| Years: | 2008-09 | 2023 | 2019 |
| Engine: | Four stroke, 77° V-twin, SOHC | Four stroke, forward facing parallel twin, DOHC with silent chain drive on the right side, four valves per cylinder | Four stroke, longitudinal 90°V twin, DOHC, with mixed gear/chain timing system,4 valves per cylinder |
| Capacity: | 549 cc / 33.5 cu in | 659 cc / 40.2 cu-in | 896.1 cc / 54.6 cu-in |
| Bore x Stroke: | 80 x 55mm | 81 x 63.93 mm | 92 x 67.4 mm |
| Compression Ratio: | 12.0:1 | 13.5: 1 | 11.0:1 |
| Cooling System: | Liquid cooled | Liquid cooled with radiator and water-oil heat exchanger | Liquid cooled |
| Induction: | Integrated engine management system controlling ignition and fuel injection. Throttle body: Ø38 mm | Airbox with front air intake. 2 ∅48 mm throttle bodies, Ride-By-Wire management | Integrated engine management system. Injection with 3-map Ride- by-wire throttle valve opening management (Sport, Touring, Rain) |
| Starting: | Electric | Electric | Electric |
| Clutch: | Cable operated multi-plate wet clutch. | Wet, multi-plate, slipper | Multiplate wet clutch, hydraulically operated |
| Max Power: | 52.2 kW / 70 hp | 100 hp / 73.5 kW @ 10500 rpm | 70.0 kW / 95.2 hp @ 8750 rpm |
| Transmission: | 5 Speed | 6 Speed, AQS Aprilia Quick Shift | 6 Speed |
| Final Drive: | Chain | Chain, with drive ratio: 17/43 | Chain |
| Frame: | Steel perimeter frame with alloy vertical members | Double beam aluminium frame with detachable rear seat | Modular tubular steel frame fastened to aluminum side plates by high strength bolts. Dismountable rear frame |
| Front Suspension: | Ø48 mm Upside down fork, double adjustment. | Kayaba upside down fork ∅ 41 mm with counter spring, aluminium feet for fixing radial calipers. Adjustable for rebound, compression and spring preload. | Upside-down fork, stanchions Æ 41 mm. Adjustable hydraulic rebound damping and spring preload. |
| Rear Suspension: | Box section aluminium swingarm with cast body, hydraulic monoshock with compression and rebound adjustment | Aluminium swingarm with asymmetrical trusses. Monoshock with adjustable counter spring: rebound and spring preload. | Aluminum alloy swingarm. Hydraulic shock absorber with adjustable extension and spring preload |
| Front Brakes: | Single Ø320mm disc, 4 piston caliper | 2x 320mm Brembo radial calipers with 4 32mm opposing pistons. Radial pump and metal braided brake hose | 2 x 320 mm discs, stainless floating discs. Radial, four-piston callipers. Metal braided brake hose |
| Rear Brakes: | Single Ø240mm disc, 2 piston caliper | Single 220mm disc; Brembo calliper with 2 isolated ∅ 34mm pistons. Pump with integrated tank and metal braided hos | Single 240 mm disc, Single piston calliper. Metal braided line. |
| Front Tyre: | 120/70 -17 | 120/70 ZR 17 Tubeless radials | 120/70 ZR17 |
| Rear Tyre: | 180/55 -17 | 180/55 ZR 17 (alternatively 180/60 ZR17) Tubeless radials | 180/55 ZR17 |
| Wheelbase: | 1495 mm / 58.9 in | 1370 mm / 53.9 in | 1500 mm / 59.0 in |
| Seat Height: | 915 mm / 36.0 in | 815 mm / 32.0 in | 870 mm / 34.2 in |
| Fuel Capacity: | 7.8 Litres / 2.1 US gal | 15 Litres / 3.9 US gal | 12 Litres / 3.17 US gal |