Aprilia RS 660 (2020–2022): A Modern Sportbike That Redefines Versatility

Introduction: The Middleweight Maverick

The Aprilia RS 660 isn’t just another sportbike—it’s a statement. Designed to bridge the gap between entry-level machines and fire-breathing superbikes, this 659 cc parallel twin injects Italian flair into the middleweight category. From its debut in 2020, the RS 660 challenged conventions with its blend of track-ready electronics, street-friendly ergonomics, and a chassis that feels like it’s reading your mind. After a spirited test ride, it’s clear: Aprilia didn’t just build a motorcycle; they crafted an experience that appeals to both seasoned riders and those looking to step up from smaller displacements.

Design: Aggression Meets Refinement

The RS 660’s design is a masterclass in balancing form and function. Its sharp, angular bodywork pays homage to Aprilia’s RSV4 lineage, especially with the triple-LED headlights that mimic the predatory gaze of its bigger sibling. The compact tail section and exposed aluminum frame give it a technical, almost industrial aesthetic, while color options like Acid Gold and Lava Red ensure it stands out in a parking lot.

Ergonomics defy typical sportbike stereotypes. The clip-ons are mounted above the triple clamp, reducing wrist strain, and the 815 mm (32.2-inch) seat height accommodates shorter riders without sacrificing ground clearance. Even the passenger seat is surprisingly usable—a rarity in this segment.

The aerodynamic winglets integrated into the fairing aren’t just for show. At highway speeds, they reduce wind buffeting, making 130 km/h (80 mph) feel like a casual stroll. Practical touches like self-canceling turn signals and automatic headlights (triggered by an ambient light sensor) highlight Aprilia’s attention to real-world usability.

Engine & Performance: Twin-Cylinder Thrills

At the heart of the RS 660 lies a 659 cc parallel twin derived from the front bank of Aprilia’s 1100 cc V4. With 100 hp at 10,500 rpm and 67 Nm (49.4 lb-ft) of torque peaking at 8,500 rpm, this engine thrives on revs. But unlike screamier inline-fours, the 270-degree crank delivers a punchy, characterful growl that’s music to a rider’s ears.

On the road, the powerband is remarkably flexible. Below 6,000 rpm, it’s docile enough for city traffic, but crack the throttle open, and the RS 660 transforms. The surge from 8,000 rpm to the 11,500 rpm redline is intoxicating, propelling the bike to a claimed top speed of 235 km/h (146 mph). The AQS up/down quickshifter snaps through gears with rifle-bolt precision, whether you’re chasing apexes or merging onto highways.

For track enthusiasts, Aprilia offers an Akrapovič slip-on (for road use) and a full race exhaust (track-only). Paired with a remapped ECU, these upgrades unlock a fiercer exhaust note and marginal power gains, though the stock setup is already thrilling.

Electronics & Tech: The APRC Suite

The RS 660’s party piece is its APRC (Aprilia Performance Ride Control) suite, a trickle-down from Aprilia’s MotoGP efforts. This isn’t just a basic traction control system—it’s a six-axis IMU-powered brain that adjusts interventions based on lean angle, acceleration, and even pitch.

Key features:
- ATC (Traction Control): Six levels of adjustability. Level 1 is permissive enough for knee-down cornering, while Level 6 feels like a safety net in rain.
- AWC (Wheelie Control): Three settings to tame the front wheel—or let it hover theatrically in Track mode.
- AEM (Engine Maps): Five riding modes (three road, two track) alter throttle response and power delivery. "Commute" softens the punch for wet roads, while "Time Attack" delivers razor-sharp responses.
- Cornering ABS: Brembo’s system modulates brake pressure mid-corner, inspiring confidence when trail-braking into hairpins.

The 5-inch TFT dash is intuitive, with a "Track" mode that displays lap times and gear position. Connecting via Aprilia MIA turns the display into a navigation hub, though most riders will prefer a handlebar-mounted phone for GPS.

Handling & Dynamics: Precision Personified

Weighing just 183 kg (403 lbs) wet, the RS 660 feels like a bicycle when flicked through switchbacks. The aluminum twin-spar frame and asymmetric swingarm strike a perfect balance between rigidity and feedback. Over broken pavement, the Kayaba 41 mm fork and preload-adjustable shock absorb imperfections without wallowing, though serious track riders might crave more damping adjustability.

Braking is sublime. Dual 320 mm Brembo discs and radial-mount calipers deliver bite that’s aggressive yet controllable. On alpine descents, the system resisted fade even after repeated hard stops, while the rear 220 mm disc offers enough feel for trail-braking antics.

The Pirelli Diablo Rosso Corsa II tires (120/70-17 front, 180/55-17 rear) provide tenacious grip, warming up quickly on chilly mornings. Swapping to a 180/60 rear (an Aprilia-approved alternative) adds stability for highway cruising without sacrificing cornering agility.

Competition: How the RS 660 Stacks Up

The middleweight sportbike segment is fiercely contested. Here’s how the Aprilia fares against key rivals:

1. Yamaha YZF-R7:
2. Pros: Cheaper, crossplane-crank engine for visceral sound.
3. Cons: Lacks advanced electronics; suspension is budget-oriented.

4. Verdict: The R7 is a raw, analog experience—ideal for purists. The RS 660 outguns it in tech and versatility.

5. Honda CBR650R:

6. Pros: Silky-smooth inline-four; comfortable for touring.
7. Cons: Heavier (208 kg / 458 lbs); softer chassis limits track prowess.

8. Verdict: The Honda is a better commuter, but the Aprilia dominates in excitement.

9. Kawasaki Ninja 650:

10. Pros: Affordable; relaxed ergonomics.
11. Cons: Underwhelming 67 hp; basic suspension.

12. Verdict: A beginner-friendly option, but not in the RS 660’s league.

13. Triumph Daytona 660 (2024):

14. Pros: Triumph’s triple-cylinder smoothness.
15. Cons: Heavier; later release date.
16. Verdict: The Daytona is a strong newcomer, but the Aprilia’s electronics package remains unmatched.

Aprilia’s Edge: No competitor offers cornering ABS, a bi-directional quickshifter, or wheelie control at this price point. The RS 660 is the only bike in its class that’s equally at home carving canyons, commuting, or lapping circuits.

Maintenance: Keeping the Italian Thoroughbred Happy

The RS 660 is relatively low-maintenance for a high-performance machine, but a few key areas demand attention:

1. Oil Changes: Aprilia recommends SAE 10W-50 synthetic every 10,000 km (6,200 miles). For track use, halve this interval.
2. Valve Adjustments: Inspect every 20,000 km (12,400 miles). The shim-under-bucket design requires mechanical expertise—best left to professionals.
3. Chain Care: The 110-link chain needs regular lubrication. Upgrade to a DID X-ring chain for extended durability.
4. Tire Pressures: 2.5 bar (36 psi) front / 2.8 bar (41 psi) rear for street riding. Drop to 2.2 bar (32 psi) front / 2.4 bar (35 psi) rear on track days.

Common Upgrades:
- Exhaust: Swap the stock muffler for an Akrapovič slip-on (road-legal) to shed 3 kg (6.6 lbs) and amplify the twin’s snarl.
- Levers: Adjustable CNC levers improve feel and suit smaller hands.
- Suspension: Öhlins STX shock ($850) transforms rear-end compliance for aggressive riding.

Conclusion: The All-Rounder That Punches Above Its Weight

The Aprilia RS 660 isn’t just a motorcycle—it’s a gateway to motorcycling’s upper echelons. It flatters novices with its manageable power and comforts experts with race-derived tech. Whether you’re threading through traffic, attacking backroads, or exploring track potential, this Italian marvel delivers relentless grins. While rivals focus on singular strengths, the RS 660 masters the art of balance. It’s proof that middleweight doesn’t mean middling.

Ready to personalize your RS 660? Explore MOTOPARTS.store’s curated selection of performance upgrades, from sprocket kits to frame sliders—because every masterpiece deserves a personal touch.

Specifications sheet