Aprilia RS 660: Specs, Performance, Costs & Buying Advice

The Aprilia RS 660 is a middleweight Italian supersport for riders who want serious performance without the size and physical demands of a liter-bike. The 2026 US range includes the standard RS 660 and the RS 660 Factory. Both use a 659 cc parallel twin producing 105 hp, so the main differences are suspension hardware, price and intended use on the road or track.

2026 Aprilia RS 660 Specs and Prices

Specification	Aprilia RS 660	Aprilia RS 660 Factory
Manufacturer	Aprilia	Aprilia
Parent company	Piaggio	Piaggio
Production	2020–present	2020–present
2026 US MSRP	$11,849	$14,149
Engine	659 cc liquid-cooled parallel twin	659 cc liquid-cooled parallel twin
Crankshaft	270-degree	270-degree
Bore × stroke	81 × 63.93 mm	81 × 63.93 mm
Compression ratio	13.5:1	13.5:1
Power	105 hp at 10,400 rpm	105 hp at 10,400 rpm
Torque	70 Nm at 8,400 rpm	70 Nm at 8,400 rpm
Transmission	6-speed manual	6-speed manual
Top speed	Approximately 149 mph	Approximately 149 mph
Fuel economy	Approximately 38 mpg	Approximately 38 mpg
Wet weight	183 kg (403 lb)	183 kg (403 lb)
Dry weight	169 kg (373 lb)	169 kg (373 lb)
Seat height	820 mm (32.3 in)	820 mm (32.3 in)
Wheelbase	1,370 mm (53.9 in)	1,370 mm (53.9 in)
Frame	Twin-spar aluminum	Twin-spar aluminum
Front suspension	41 mm KYB upside-down fork	Öhlins NIX 30 fully adjustable fork
Rear suspension	Adjustable KYB monoshock	Öhlins APX fully adjustable shock
Front brakes	Dual 320 mm floating discs	Dual 320 mm floating discs
Rear brake	Single 220 mm disc	Single 220 mm disc
Front tire	120/70 R17	120/70 R17
Rear tire	180/55 ZR17	180/55 ZR17
Electronics	APRC, ride-by-wire, ABS	APRC, ride-by-wire, ABS
Quickshifter	Up-and-down AQS	Up-and-down AQS
Instrumentation	Color TFT display	Color TFT display
Connectivity	Aprilia MIA	Aprilia MIA
Lighting	Triple LED, DRL, cornering lights	Triple LED, DRL, cornering lights
Emissions standard	Euro 5+	Euro 5+
Standard colors	Blue Marlin; Venom Yellow	Dedicated Factory graphics
Throttle bodies	52 mm	52 mm

How the RS 660 engine performs

The 659 cc liquid-cooled four-stroke twin has a 270-degree crankshaft, 52 mm throttle bodies and a 13.5:1 compression ratio. It produces 105 hp at 10,400 rpm and 70 Nm of torque at 8,400 rpm. The result is strong acceleration through the middle of the rev range, with enough top-end power for fast highway riding and track use.

A six-speed manual transmission sends power to the rear wheel, while ride-by-wire controls the throttle. Aprilia Quick Shift supports clutchless upshifts and downshifts, and selectable engine maps change the throttle response. The Euro 5+ configuration retains the same basic character while meeting the newer emissions requirement.

Top speed is approximately 149 mph, and listed fuel economy is about 38 mpg. The 15-liter, or 4.0-gallon, fuel tank gives the RS 660 useful road range, although speed, riding style, traffic and track use can shorten the distance between fuel stops.

The Aprilia RS 660 combines strong midrange performance with manageable power delivery instead of chasing superbike-level figures. That puts it up against approachable middleweight sport bikes such as the Yamaha R7, whose engine character and riding position provide a useful contrast. 2026 Yamaha R7 review places the comparison in a broader context.

What the RS 660 Factory adds

The Aprilia RS 660 Factory uses the same engine, output, brakes, dimensions and electronic package as the standard model. The extra cost goes mainly toward the suspension and finish, not additional horsepower.

• Öhlins NIX 30 fork: Fully adjustable front suspension with higher-end damping hardware.
• Öhlins APX shock: Fully adjustable rear suspension for more precise setup control.
• Factory graphics: Dedicated graphics that distinguish the premium model.
• Track setup potential: More adjustment range for riders tuning suspension for pace, tire choice or circuit conditions.

The standard RS 660 offers better value for commuting, weekend road riding and owners who do not plan to adjust suspension settings. The Factory justifies its higher price when the rider understands suspension setup or expects to spend significant time on a track.

RS 660 chassis and electronics

The twin-spar aluminum frame uses the engine as a stressed member, keeping the chassis compact. A 1,370 mm wheelbase and 820 mm seat height create a sporty riding position without the extreme reach and low bars associated with larger supersport motorcycles. At 183 kg, or 403 pounds, wet, the RS 660 remains manageable at low speeds and through quick direction changes.

The standard model has a 41 mm KYB upside-down fork and an adjustable KYB monoshock. Both versions use dual 320 mm floating front discs, a 220 mm rear disc and 17-inch wheels with 120/70 front and 180/55 rear tires. The Factory replaces the KYB units with fully adjustable Öhlins components.

Aprilia Performance Ride Control, or APRC, combines traction control, wheelie control, engine-brake control, engine maps, ride-by-wire and multi-map cornering ABS. A color TFT display shows the motorcycle’s information, while Aprilia MIA adds smartphone connectivity. Triple LED lighting includes daytime running lights and cornering lights.

Is the RS 660 good for beginners?

The RS 660 is compact and approachable, but it is not a low-powered beginner motorcycle. A 105-hp sportbike can accelerate very quickly, and its aggressive riding position, sharp steering response, insurance costs and performance-focused tires require disciplined control. Traction control and ABS can reduce some mistakes, but they cannot compensate for excessive speed or poor throttle judgment.

New riders should complete a recognized training course before buying one. The Motorcycle Safety Foundation Basic RiderCourse covers braking, cornering, shifting and basic control. It may also waive the riding test in some US states, although licensing requirements vary and the course does not automatically replace every state requirement.

The RS 660 can serve as a first street motorcycle for a mature rider who trains formally, starts with conservative settings and accepts the insurance and equipment costs. For most complete beginners, a lighter and less powerful motorcycle provides more room to learn before moving to the Aprilia.

The RS 660’s light weight, rider modes and electronic aids can make it feel less intimidating than its sporty styling suggests. For a newer rider, though, the bike’s condition still matters: a new motorcycle comes with a known maintenance history and warranty coverage, while a used one may lower the financial risk of a first ownership experience. That tradeoff is worth considering when comparing a new motorcycle for beginners with a carefully inspected used alternative.

What the RS 660 costs to own

The $11,849 standard MSRP and $14,149 Factory MSRP are starting prices rather than final out-the-door totals. Buyers also need to budget for taxes, title and registration charges, documentation, freight, dealer setup, insurance, fuel, maintenance and protective equipment.

• Dealer additions: Destination, freight, setup, documentation, sales tax and registration can add approximately $1,500 to $2,500 before optional accessories.
• Insurance: Premiums reflect the motorcycle’s 105 hp, sportbike classification, rider age, location, claims history, coverage limits and deductible.
• Financing: Piaggio Financial Services is used by some Aprilia dealers for motorcycle loans and promotional rates. Compare the annual percentage rate, term, down payment and total interest instead of looking only at the monthly payment.
• Fuel: Listed economy is approximately 38 mpg, and the 4.0-gallon tank holds about 15 liters when filled from empty.
• Maintenance: Plan for scheduled service, oil and filters, chain care, brake fluid, tires, brake pads and valve-clearance work as mileage increases.
• Riding equipment: A certified helmet, armored jacket and pants, motorcycle boots, gloves and back protection can add substantially to the initial cost.
• Warranty and registration: A new motorcycle bought from a dealer includes manufacturer warranty coverage subject to its terms. Registration and title costs depend on the state.

A used RS 660 may cost less upfront, but it could need tires, chain-and-sprocket work, brake service or postponed scheduled maintenance soon after purchase. Review the service records and inspect the motorcycle before treating a lower advertised price as a lower ownership cost.

How to buy an Aprilia RS 660

Consider warranty support, price, inspection access and travel or shipping requirements when choosing where to buy. An authorized dealer usually offers the simplest paperwork for a new motorcycle, while online and private-party purchases require more independent checking.

1. Choose between the standard RS 660 and RS 660 Factory based on suspension needs and total budget.
2. Check new inventory through Authorized Aprilia dealerships, which handle factory warranty, financing, setup and brand-specific service.
3. Compare dealer and used inventory on Cycle Trader, a nationwide marketplace for motorcycle listings.
4. Use MotoHunt to find additional RS 660 listings and compare asking prices.
5. Review private-party listings on Facebook Marketplace only after confirming the vehicle identification number, title status, lien release, mileage and maintenance history.
6. Request a written out-the-door quote that separates MSRP, freight, setup, documentation, tax, registration and optional accessories.
7. Arrange insurance before taking delivery and confirm the lender’s requirements if financing.
8. Complete payment only after the motorcycle, title, lien information and bill of sale match the agreed transaction.
9. Transfer the title and register the motorcycle under your state’s rules before riding it on public roads.
10. Inspect a used motorcycle for crash damage, fork leaks, steering-head play, uneven tire wear, chain condition, warning lights and missing keys before completing the purchase.

A dealer is usually the simplest route for a new motorcycle or for buyers who want one point of contact for financing and setup. Online marketplaces widen the search area, while Facebook Marketplace may have lower asking prices but leaves inspection, title verification, payment security and transport to the buyer.

A lower used price does not always make an RS 660 a bargain. Missed services, crash damage or electronic faults can quickly outweigh the savings. Before agreeing to a deal, verify the VIN and service records, inspect the forks, brakes, chain, tires and fairings, and test the quickshifter and riding modes. A thorough motorcycle buying checklist helps you work through these checks consistently.

Aprilia RS 660 final verdict

The standard RS 660 is the better choice for most road riders. It delivers the same 105-hp engine, electronics, brakes, dimensions and aerodynamic package as the Factory at a lower price. Its KYB suspension includes rear adjustment and is suitable for everyday sport riding, commuting and occasional track days when set up correctly.

The Factory suits experienced riders who will use the Öhlins adjustment range. It is also the stronger choice for frequent track use, where suspension setup and consistent chassis behavior matter more than the price difference. Neither version is a relaxed beginner bike, and both require a realistic budget for insurance, tires, training and protective gear.

2026 Aprilia RS 660 two Dynojet runs

Dyno Results: A stock 2026 Aprilia RS 660 produced approximately 88.4 hp and 44.2 lb-ft of torque at the rear wheel on the Dynojet. The two recorded runs were closely matched, with peak horsepower occurring around 10,900–11,100 rpm and peak torque around 10,100–10,400 rpm.

FAQs

Why is the Aprilia RS 660 so expensive?

The price reflects a 105-hp parallel-twin engine, aluminum stressed-member chassis, cornering ABS, APRC rider aids, an up-and-down quickshifter, TFT instrumentation, LED lighting and sportbike-grade braking hardware. The Factory costs more because it adds fully adjustable Öhlins suspension and dedicated graphics.

Does the Aprilia RS 660 have a quickshifter?

Yes. The RS 660 includes Aprilia Quick Shift for clutchless upshifts and downshifts. Its operation is integrated with the motorcycle’s ride-by-wire and electronic systems.

How much does the Aprilia RS 660 weigh?

Both 2026 models have a listed wet weight of 183 kg, or 403 pounds. The listed dry weight is 169 kg, or 373 pounds.

How large is the RS 660 fuel tank?

The fuel tank holds 15 liters, or approximately 4.0 US gallons. Listed fuel economy is approximately 38 mpg, although actual range varies with riding conditions and throttle use.

Conclusion

The 2026 Aprilia RS 660 gives riders high performance, compact dimensions and advanced electronics in a middleweight sportbike. Choose the standard model for stronger value on the road, or choose the Factory when you will use the fully adjustable Öhlins suspension.