2025 · Supersport · A variant of the RS 660
Differences between the standard RS 660 and the Factory
The Italian Flick Machine
The Factory sits at the sharp end of the middleweight class, and the hardware explains why. The 659 cc parallel twin makes 106 hp at 10,500 rpm and 52 lb-ft, carried in an aluminum chassis that keeps wet weight at 403 lb (183 kg). The electronics are the real story here: Aprilia APRC Ride-by-Wire with three switchable maps, APRC with Slide Control, wheelie control, launch control and cornering ABS. Winglets, a TFT dash and Aprilia Quick Shift (AQS) Bidirectional finish a package that was clearly assembled by people who ride, not by a marketing committee looking for a spec sheet win.
This is a focused machine and it never pretends otherwise. Suspension is adjustable front and rear, there is a six-speed gearbox with a slipper clutch behind it, and cruise control comes standard, which tells you Aprilia expects these bikes to cover real road miles between the good corners. It suits the experienced rider who values precision and front-end feel over headline power, and who will actually use the adjustment range. The honest caveat is the convenience list. Navigation, smartphone connectivity, a USB port and tire pressure monitoring are options rather than standard kit, and the 32.3 in (820 mm) seat is tall.
Spec sheets don't ride bikes, but they set the baseline.
| Power | 106 hp (78 kW) @ 10,500 rpm |
|---|---|
| Torque | 52 lb-ft (70 Nm) |
| Displacement | 659 cc |
| Engine | Parallel twin |
| Cooling | Liquid-cooled |
| Gearbox | 6-speed |
| Final drive | Chain |
| Fork | Upside-down (USD) |
| Front brake | 320 mm |
| Front tire | 120/70-17 |
| Rear tire | 180/55-17 |
| Wheelbase | 53.9 in (1370 mm) |
| Seat height | 32.3 in (820 mm) |
| Wet weight | 403 lb (183 kg) |
| Fuel capacity | 4.0 gal (15 L) |
| Top speed | 149 mph (240 km/h) |
Equipment check
Chassis
Connectivity
Drivetrain
Lighting
Safety
The RS 660 Factory (MY2025-Factory) builds on the standard RS 660: the upgraded hardware, the key spec changes and where its character shifts. The full ride, specs, scoring and verdict are all right here on this page.
I have heard a lot about this bike over the years: in the paddock, over coffee with owners, at club nights, and in the messages riders send me after a season with theirs. On the RS 660 Factory, the picture is consistent. Owners love the engine, the chassis and how easy it is to live with on the road. Their complaints are about finish quality, top-end power and price.
Owners bring up the midrange again and again. They describe a twin that pulls hard from low revs and still gives them a proper rush near the top, so it's fun on a back road and effective on track. Several riders also single out the sound. They call the 270-degree firing order a real snarl and say it reminds them of Aprilia's V4 bikes. In corners, riders say the bike is light and flickable. Owners praise the Öhlins fork and shock for their damping control and the confidence they give. Riders also regularly call the electronics comprehensive and well integrated, and they mention the lean-sensitive traction control and cornering ABS most often.
Comfort surprises many owners. Riders say the riding position is more forgiving than the stance suggests. They mention the slim waist and the well-padded seat, and several owners report longer rides without sore wrists or heavy fatigue.
The most common complaint is about finish. Some owners report thin paint, fairings that pick up stone chips easily and an uneven finish on the swingarm. Top-end power comes up almost as often. Riders used to four-cylinder supersports, or who spend time on track, say the twin can't match that screaming top end and leaves them wanting more. Price is the last gripe. A few owners say the premium hardware makes the Factory noticeably more expensive than its Japanese middleweight rivals.
Recall: Left handlebar grip material non-compliance
Aprilia issued a recall for the left handlebar grip on certain RS 660, Tuono 660, and RS 457 models due to rubber material not compliant with EU REACH regulation. Dealers replace the grip free of charge.
Where this Aprilia RS 660 pulls ahead of — or falls behind — its rivals on the numbers, and the typical bike in its class on character.
Power
Torque
Displacement
Wet weight
Seat height
Forget spec-sheet bragging. Here's who the RS 660 is actually built for.
Angeles Crest is the road this bike was built for. Enough power to matter, light steering, and rider aids that let you push hard without the bike punishing one bad decision.
Made for Angeles Crest Highway · Coronado Trail / US 191 · Highway 1 / Big Sur
For trackdays this adds up: suspension you can dial in at both ends, launch control, slide control, and 106 hp you can use all session. You will get better on it before you outgrow it.
Made for WeatherTech Raceway Laguna Seca · Barber Motorsports Park · Circuit of the Americas
On the Dragon and the Cherohala, the tight stuff plays to this bike's hand. It changes direction fast and tells you what the front is doing, and 106 hp is plenty where corners never stop coming.
Made for Tail of the Dragon · Back of the Dragon · Blue Ridge Parkway
If you're cross-shopping the older generation, here's what changed.
Previous generation · 2020–2024
Middleweight With Genuine Bite
Compare to the previous model →If this one isn't quite the fit, these are the bikes worth riding back-to-back against it.
Any price note compares both bikes at the same age — the youngest age both have on the used market — against this Aprilia RS 660. “cheaper/pricier” is what that bike costs second-hand, not how worn it is.
