Aprilia RS660

The Aprilia RS660 is a motorcycle produced by Italian manufacturer Aprilia since 2020. The machine finished second in the UK National Sportbike Championship, a new race series for 2024.^[2]

Aprilia RS660

Aprilia RS660
Manufacturer	Aprilia
Parent company	Piaggio
Production	2020–present
Engine	659 cc (40.2 cu in) liquid-cooled 4-stroke parallel-twin
Bore / stroke	81 mm × 63.93 mm (3.189 in × 2.517 in)
Compression ratio	13.5:1
Power	100 hp (75 kW) @ 10,500 rpm
Torque	67 N⋅m (49 lb⋅ft) @ 8,500 rpm
Ignition type	Capacitor discharge electronic ignition (CDI)
Suspension	Front; Hydraulic telescopic fork
Brakes	Front; Ø 320 mm double disc Rear; Ø 220 mm single disc
Tires	Front; 120/70 R17 Rear; 180/55 ZR 17[1]
Wheelbase	53.9 in (1,370 mm)
Weight	373 lb (169 kg) (dry) 403 lb (183 kg) (wet)
Fuel capacity	15 L (3.3 imp gal; 4.0 US gal)
Related	Aprilia Tuareg 660

History

In 2019 Aprilia displayed two sports prototypes, the RS 660 and the Tuono 660, at the 2019 EICMA show. The two were intended to fill a void in the range from the Noale manufacturer, to be able to compete with Japanese companies in the medium-displacement motorcycle sector. Designed as a smaller version of the new RSV4 1100, it shares its lines and chassis, the result of a project born in Piaggio Group Style Center.^[3][4]

The engine, a 659 cm³ twin-cylinder with a double overhead camshaft and connecting rod pins at 270°, is capable of delivering 100 HP of power maximum at 10500 rpm and 67 Nm of torque at 8500 rpm. The frame is an aluminum double beam contributing to a total weight of 169 kg dry. The shock absorbers are adjustable with 41 mm upside-down Kayaba front forks. Electronics are the dedicated Marelli APRC sports system, which gives five performance settings, eight-level traction control, anti-wheelie, ABS, three levels of engine braking, and ride-by-wire throttle control.^[5]

In the spring of 2022, the factory version was introduced, which brought a technical update.^[6]

At the end of the year, a version called RS 660 Extrema was introduced, with modifications to the chassis for track use and lightening of some parts, reducing the weight to 166 kg.^[7]