Aprilia 125 Pegaso (1989-90) vs Honda CX 400 Custom (1983-) vs Aprilia RS 660 / Factory (2025)
Comparison technical specifications
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| Make: | Aprilia | Honda | Aprilia |
| Model: | 125 Pegaso | CX 400 Custom | RS 660 / Factory |
| Years: | 1989-90 | 1983- | 2025 |
| Engine: | Two stroke, single cylinder, reed valves | Four stroke, longitudinal 800 V-twin cylinder, camshaft nestles at the base of the V between the cylinders. ,OHV, 4 valves per cylinder operated by pushrods | Four stroke, forward facing parallel twin, DOHC with silent chain drive on the right side, four valves per cylinder |
| Capacity: | 124 cc / 7.6 cu in | 396 cc / 24.1 cu-in | 659 cc / 40.2 cu-in |
| Bore x Stroke: | 54 x 54.5mm | 81 x 63.93 mm | |
| Cooling System: | Liquid cooled | Liquid cooled | Liquid cooled with radiator and water-oil heat exchanger |
| Induction: | Ø34 mm Dell'Orto carburetor | 2x 34mm Keihin carburetors | Airbox with front air intake. 2 x 52 mm throttle bodies, Ride-By-Wire management |
| Starting: | Electric | Electric | Electric |
| Max Power: | 23 kW / 31 hp @ 10000 rpm | 40 hp / 29.8 kW @ 9500 rpm | 105 hp / 73.5 kW @ 10500 rpm |
| Max Torque: | 22.5 Nm / 2.3 kgf-m / 16.6 ft-lb @ 85000 rpm | 32Nm / 23.6 lb-ft @ 7500 rpm | 68 NM / 50.2 lb-ft @ 8500 rpm |
| Transmission: | 6 Speed | 5 Speed | 6 Speed, Aprilia Quick Shift (AQS) System up and down (available as optional accessory) |
| Final Drive: | Chain | Shaft | Chain, with drive ratio: 17/43 |
| Front Suspension: | Ø41 mm Inverted telescopic forks | 39mm Showa telehydraulic fork | RS: ? 41 mm Kayaba USD fork, rebound and preload adjustable RS Factory: 43mm ?hlins NIX 30 fork, spring preload, rebound and compression damping adjustable |
| Rear Suspension: | Single chock preload adjustable | Dual chocks | RS: Kayaba monoshock, rebound and preload adjustable?hlins STX rear shock, spring preload, rebound and compression damping adjustable RS Factory: ?hlins monoshock, fully adjustable |
| Front Brakes: | Single Ø300 mm disc, 2 piston caliper | Single 275 mm discs 2 piston caliper | 2x 320mm Brembo radial calipers with 4 horizontally opposed 32 mm pistons. Radial pump and metal braided brake hose |
| Rear Brakes: | Single Ø220 mm disc, 1 piston caliper | 160mm Drum | Single 220mm disc; Brembo caliper with two 34 mm separate pistons. Master cylinder with separate reservoir and metal braided hose Multimap ABS (Cornering ABS available as optional accessory) |
| Front Tyre: | 100/90-18 | 3.25-19 | 120/70 ZR 17 |
| Rear Tyre: | 120/80-17 | 3.75-16 | 180/55 ZR 17 |
| Fuel Capacity: | 14 Litres / 3.7 US gal | 11 Litres / 2.9 US gal | 15 Litres / 4.0 US gal |