In-depth test of the 2026 Aprilia RS 660 Factory: real top speed, Euro 5+ engine performance, fully adjustable suspension, fuel economy, pros, cons, and pricing.
Aprilia RS 660 Factory 2026: In-Depth Test, Real Top Speed, Pros & Cons
We thoroughly tested Noale's upgraded middleweight sportbike: here is how the fully adjustable suspension performs, how the Euro 5+ engine handles in the real world, and whether it’s worth choosing over the standard version.
At a Glance: The 5-Point Summary
Real Top Speed: 230–240 km/h (143–149 mph) measured on a long straight in full tuck.
Factory Chassis: High-performance fully adjustable suspension paired with a benchmark aluminum frame.
Euro 5+ Engine: 659 cc parallel-twin engine, smoother down low and punchier in the mid-range.
Tested Fuel Consumption: 18 km/L (42.3 mpg) average, reaching over 22 km/L (51.7 mpg) under gentle cruising.
Official Price: €14,100 MSRP.
Build Quality and Premium Finishing
The Aprilia RS 660 Factory remains the segment benchmark for dynamic capabilities and stock equipment. Build quality and overall fit and finish are excellent: deep paintwork, beautifully executed welds on the aluminum frame, and newly integrated aerodynamic winglets smoothly styled into the front fairing.
Value for Money: Aside from a few minor plastic trim pieces, the top-tier chassis hardware and electronics package position the Factory version as one of the best buys in its class.
Ergonomics & Comfort: Sporty yet Usable
Unlike old-school, wrist-killing 600cc four-cylinders, the RS 660 Factory offers a well-balanced ergonomic triangle:
Seat & Riding Position: The narrow seat combined with clip-ons mounted above the top triple clamp delivers excellent control without putting excessive strain on wrists or back.
Rider Fit: Ideal for riders around 170–175 cm (5'7"–5'9"). Riders over 180 cm (5'11") will find it quite compact, though knee cutouts in the tank still allow for a secure grip.
Pillion Comfort: The rear seat pad is high and minimal, but footpeg placement isn't overly cramped, making short two-up rides far less punishing than on a full-size superbike.
Chassis and Suspension: For Those Demanding the Best
The true added value of the Factory variant lies in its suspension setup, tailored for riders seeking surgical precision on twisty roads and peak performance during track days:
Fork & Shock Absorber: Both front and rear units are fully adjustable for preload, compression, and rebound damping.
Stock Setup: Firm and supportive without feeling harsh. It absorbs road bumps well while virtually eliminating weight transfer under hard braking during aggressive riding.
The Verdict: If you frequent track days or push hard on mountain passes, the price premium over the base model is fully justified by the suspension upgrade alone.
Braking and On-Board Electronics
Braking duties are handled by a dual front disc setup clamped by radial-mount calipers:
Power and Modulation: Outstanding stopping power amplified by the bike’s low curb weight. The rear brake proves highly effective for tightening lines mid-corner.
APRC Package: Cornering ABS operates unobtrusively, even on low-grip surfaces. Traction Control, Wheelie Control, and Engine Maps are easily customized via the full-color TFT display.
Engine Performance, Gearbox, and Real Top Speed
The 659 cc parallel-twin keeps its energetic character intact despite Euro 5+ emission updates:
Power Delivery: Compared to the previous iteration, throttle response is cleaner with virtually no low-RPM snatchiness, backed by a meatier mid-range punch than equal-displacement four-cylinder engines.
Real Top Speed: Maximum potential speed reaches 240 km/h (149 mph), requiring a very long straightaway and a compact rider tuck. In typical everyday conditions, real-world GPS top speed settles at an effective 230 km/h (143 mph).
Quickshifter: The bi-directional electronic quickshifter executes crisp, seamless gear changes. Sixth gear is geared slightly tall to keep fuel consumption down on highway transfers.
Tested Fuel Consumption & Range
Road testing yielded the following real-world fuel economy figures:
Mixed & Extra-Urban Riding: approx. 18 km/L (42.3 mpg)
Spirited Riding & Track Use: approx. 14 km/L (32.9 mpg)
Touring at Highway Speeds: over 22 km/L (51.7 mpg)
Pros and Cons
What We Like:
Top-tier Factory suspension ready for track duty out of the box.
Rigorous aluminum chassis that transitions effortlessly through quick direction changes.
Highly usable engine characteristics on winding road sections.
Comprehensive electronics suite complete with Cornering ABS and bi-directional Quickshifter.
What Could Be Better:
Top-end pull on long straights cannot match 1000cc superbikes.
Compact dimensions limit legroom for riders taller than 180 cm (5'11").
Slight footpeg vibrations noticeable at high engine revs.
Frequently Asked Questions (FAQ)
What is the real top speed of the Aprilia RS 660 Factory?
Tested GPS top speed is 230 km/h (143 mph) in standard conditions, reaching up to 240 km/h (149 mph) on extended straights with a tucked-in rider.
How much does the Aprilia RS 660 Factory cost?
The official list price starts at €14,100 MSRP (approx. $14,500 – $15,000 depending on regional market import taxes).
What are the main differences compared to the standard RS 660?
The Factory trim upgrades to high-performance fully adjustable suspension, a lightweight lithium battery, a dedicated factory livery, and track-ready standard accessories.