Aprilia RS 660 vs RS 660 Factory: what changed for 2025?
The original 2025 Aprilia RS 660 Factory does not have a more powerful engine than the standard 2025 RS 660. Both European/UK road bikes received the revised 659 cc parallel twin rated by Aprilia at 105 hp, together with new aerodynamics and updated electronics. The Factory’s principal upgrade is its fully adjustable Öhlins suspension, accompanied by a distinctive seat and graphics.
That is the important distinction when comparing the two bikes. There are changes from the previous RS 660 generation to 2025, and there are differences between the two 2025 versions. Treating all those changes as Factory exclusives makes the premium model appear more different than Aprilia’s original specification supports. This comparison concerns the original, full-power, road-legal European/UK 2025 editions, not an earlier 100 hp bike or a later model-year revision.
What changed across the RS 660 range for 2025?
Aprilia revised the RS 660 family for 2025 and introduced the Factory alongside the updated standard motorcycle. The common engine remained a liquid-cooled 659 cc parallel twin, but larger 52 mm throttle bodies replaced the previous 48 mm units. Aprilia declared 105 hp at the crankshaft, up from the earlier generation’s 100 hp. That change belongs to the updated family, not to the Factory alone.
The front of the fairing was redesigned with a prominent wing beneath the screen and smaller aerodynamic appendages. Aprilia said the bodywork had been developed through computational analysis, wind-tunnel work and riding evaluation, with the aims of improving airflow and providing better protection from wind pressure and engine heat. Those are the manufacturer’s design aims, not proof that one of these two 2025 motorcycles generates more downforce than the other.
The cockpit changed too. Backlit handlebar switches and a new five-inch colour instrument display arrived alongside an evolved electronic control suite. Launch control joined the Aprilia Performance Ride Control functions. The standard RS 660 was not left with the old dashboard or an older electronics generation simply because Aprilia launched a Factory trim.
On a used motorcycle, the new winglets or launch control indicate the 2025 platform, not necessarily Factory trim. Suspension, seat, graphics and documentation help identify the variant.
2025 RS 660 vs RS 660 Factory: differences at a glance
| Original 2025 UK/EU road equipment | RS 660 standard | RS 660 Factory |
|---|---|---|
| Engine | 659 cc Euro 5+ parallel twin | Same 659 cc Euro 5+ parallel twin |
| Aprilia-declared output | 105 hp at the crankshaft | 105 hp at the crankshaft |
| Front suspension | Kayaba/KYB upside-down fork | 43 mm Öhlins NIX 30, fully adjustable |
| Rear suspension | Kayaba/KYB shock | Öhlins STX 46 with reservoir, fully adjustable |
| Aerodynamics | Revised 2025 fairing and winglets | Same 2025-generation aerodynamic development |
| Electronics | Updated APRC, launch control, colour display | Shared 2025 platform functions; no verified Factory-only power setting |
| Seat and appearance | Standard seat; Venom Yellow or Blue Marlin launch colours | Two-tone seat and dedicated black/red Factory graphics |
| UK launch announcement price, 5 March 2025 | £10,450 | £12,300 |
The prices in the final row are the figures in Aprilia’s dated UK launch announcement, not current retail quotations. Differences in accessories, dealer fitment or a later model-year specification must be checked separately. The table deliberately does not name a faster, lighter or better-handling winner: there is no matched independent road test behind such a verdict.
Öhlins versus Kayaba: what the suspension difference means
This is where the Factory’s extra hardware is clearest. Aprilia specified a 43 mm Öhlins NIX 30 front fork and an Öhlins STX 46 rear shock with an integrated reservoir. Both offer adjustments for spring preload and hydraulic compression and rebound damping. The standard 2025 RS 660 retains Kayaba suspension, rather than receiving these Öhlins components as part of the platform-wide update.
Suspension adjustments matter because they allow a rider or specialist to alter how the fork and shock respond to different loads, surfaces and riding demands. Spring preload changes the suspension’s working position under load; damping adjustments control the rate of movement as the components compress and extend. An adjustable shock reservoir is a genuine component distinction, but the badge on the reservoir is not a measurable verdict about every journey.
The standard Kayaba suspension also allows adjustment, but the Factory has a broader documented tuning range. That can be useful for riders working with a suspension specialist.
That does not establish that a Factory will corner faster, brake in a shorter distance or feel more comfortable to every rider. Tyre condition, setup, rider weight, road surface and maintenance all affect what a motorcycle feels like. The sensible distinction is one of original equipment and tuning range; a handling superiority claim would require both machines to be tested under comparable conditions.
A second-hand Factory is also worth inspecting carefully. A machine with the correct yellow Öhlins components may still have been re-sprung, rebuilt or revalved. Conversely, a standard RS 660 may have acquired aftermarket suspension. The fitted parts matter, but they do not by themselves establish the motorcycle’s original factory identity.
Is the 105 hp engine different on the Factory?
There is no substantiated original 2025 Factory-only horsepower increase. Aprilia’s introduction of the two bikes describes the revised 659 cc parallel twin and the 105 hp crankshaft declaration as part of the new RS 660 generation. The 52 mm throttle bodies and Euro 5+ compliance likewise belong to the shared 2025 update.
The new engine output should not be presented as rear-wheel dynamometer power. It is a manufacturer declaration, and figures recorded by separate testers at the rear wheel would use different conditions and measurement methods. Equally, the older generation’s 100 hp figure is useful for explaining the 2025 change, but it is not the proper baseline for comparing the two 2025 variants.
Nor should the Factory’s more expensive suspension imply a different set of internal engine components, a higher rev limit or a special map that produces more peak power. The road versions share the same declared engine output. An aftermarket exhaust, altered ECU or restricted-licence configuration is a separate specification and can no longer be assumed to represent the original full-power bike.
For buyers, that simplifies the main question. Choosing the Factory is not choosing a second engine tier. The decision is about the original chassis equipment and finish, and about how much value the rider places on having the more sophisticated suspension from new.
Aerodynamics and electronics: what both bikes share
The new fairing and winglets are visible evidence of the 2025 generation. Both bikes belong to that redesign, so the Factory is not uniquely entitled to the new winged nose. Aprilia developed the bodywork to manage airflow at the front, around the rider and through the side fairings. A photograph may make the styling easier to compare, but the manufacturer’s development claims are not an independent measurement of stability or wind protection for a particular rider.
The same principle applies to the electronics. The 2025 RS 660 has ride-by-wire throttle control, a six-axis inertial platform and cornering ABS. Its APRC suite includes adjustable traction and wheelie control, engine braking adjustment, selectable engine maps, cruise control, an up-and-down quickshifter and launch control. The new colour display and illuminated switchgear are part of this broader platform update.
These functions have practical roles. Cornering ABS uses the bike’s movement information as part of its braking response; traction control manages driven-wheel slip; engine braking settings influence the response when the rider closes the throttle. Cruise control and a quickshifter serve rather different purposes. Their presence matters more than simply counting electronic acronyms.
What the standard brochure does not support is the idea that the Factory automatically receives a different safety rating, more engine power or a superior traction-control system. Nor is the number of configurable modes necessarily proof of a meaningful road advantage. Compare the actual model-year equipment list and any software or accessory changes, not an online description that mixes years.
A launch-control function is also not a guarantee of a particular acceleration time. No controlled, matched standard-versus-Factory acceleration test is established by the original launch literature.
Factory livery, seat and which accessories are not standard
The 2025 Factory has its own visual identity, including dedicated dark and red graphics and a two-tone seat, with black sides and a red upper section. At the March 2025 UK launch, Aprilia identified Venom Yellow and Blue Marlin for the standard motorcycle. Colours and seat finishes help distinguish the original bikes, although they are not conclusive when panels or upholstery have been changed.
The Factory name does not mean that every track-oriented item seen in a photograph was fitted at the production line. Aprilia described a single-seat tail unit, luggage, a GPS module for recording circuit times, an SC-Project homologated exhaust and machined accessories as items available through its accessory range. Those should not be presented as included Factory equipment without a dated original bill of sale or factory equipment list.
This distinction matters when comparing advertised examples. A single-seat tail or upgraded exhaust could have been purchased separately for either model. A dealer-fitted part may be genuine Aprilia but still not be standard to the motorcycle as delivered. Where an exhaust or electronic accessory has changed, the buyer should establish whether the associated approval and mapping are appropriate for road use.
The most persuasive identifying combination is therefore the original year and model documentation, Factory-specific suspension, correct period graphics and seat, and an equipment list that distinguishes standard parts from extras. A badge or colour alone is a weaker test.
Does the Factory upgrade justify the original premium?
Aprilia’s UK announcement of 5 March 2025 quoted £10,450 for the standard RS 660 and £12,300 for the Factory, a difference of £1,850 at that release. The same online release now also displays £10,540 and £12,390 in its product listing. Those are separate publication states, not a licence to describe the earlier figures as current prices or claim that the motorcycles have changed mechanically.
The original premium bought the Öhlins suspension package and distinct Factory presentation. Whether that was worthwhile depended on what a rider would otherwise do with the standard motorcycle. Someone planning careful suspension adjustment, regular specialist setup or more demanding riding might have a practical reason to value the Factory equipment. Someone who preferred the standard bike’s colours and had no need for additional damping settings could reasonably find the standard specification sufficient.
It would be misleading to estimate the cost of duplicating the Factory by adding up present-day aftermarket parts. Retail suspension prices, installation, setup, warranties and the value of the original motorcycle are not equivalent to the manufacturer's launch-price difference. The Factory was a complete original trim, not a standard bike plus an accessory shopping basket.
Nor does an original price difference predict used values, finance costs or insurance premiums today. Those depend on an individual machine and its market. Here the dated price tells us the size of Aprilia’s original positioning difference, not which version is the better financial decision in every subsequent year.
Which version fits which kind of rider?
The standard 2025 RS 660 makes a clear case for the rider who wants the updated engine, fairing and electronic features without paying the original Factory premium. Its 105 hp declaration, revised controls, aerodynamic bodywork and everyday equipment are not reduced because it uses Kayaba suspension. A well-maintained standard bike with properly adjusted components can make more sense than a neglected premium-spec example.
The Factory offers higher-grade suspension with more adjustments. That may appeal to riders who know their preferred settings, carry different loads or want to work with a suspension specialist. The appearance is also a legitimate preference, provided it is not confused with a measurable performance advantage.
Neither choice can be settled through the brochure alone. Seat comfort depends on individual proportions and use; suspension performance depends on settings and conditions; the handling difference cannot be quantified without a matched test. A short ride on each correctly maintained bike would be more meaningful than assuming a Factory name determines the outcome.
Insurance, tyres, maintenance records and the condition of consumables also matter regardless of trim.
What to check on a 2025 example
Begin with the VIN and registration or import documents, then establish whether the motorcycle is genuinely an original 2025 UK/EU RS 660 or RS 660 Factory. Registration year and model year are not always identical. A dealer listing that calls every winglet-equipped RS 660 a Factory is not sufficiently precise.
Next, inspect the front fork and rear shock. The original Factory combination is a 43 mm Öhlins NIX 30 fork and STX 46 shock with reservoir. Check for evidence of changes, damage, leakage and documented servicing. On a standard bike, determine whether the original Kayaba units are still fitted and whether adjustments have been made sensibly. Used suspension condition matters more than its colour.
Confirm the seat and graphics against photographs of the appropriate original release, while remembering that panels can be replaced. Ask which accessories were added after purchase. A GPS unit, different tail section or aftermarket exhaust is not proof of original trim. If software has been updated or parts changed, request documentation and confirm road legality where relevant.
Check that the 2025-generation display and electronics work, and review the service history. Market-specific and restricted versions need their own documentation.
What the 2025 RS 660 Factory really changes
Aprilia’s 2025 RS 660 update brought meaningful changes to the whole range: a 105 hp Euro 5+ twin, new throttle bodies, revised aerodynamic bodywork and an evolved electronic package including launch control. Those improvements are part of the standard bike as well as the Factory.
The Factory adds a more elaborate suspension specification and its own visual finish. That is a clear, defensible difference, but it is not an extra engine-power tier, a uniquely winged fairing or a proven lap-time advantage. For a reader comparing the original 2025 road bikes, the best question is whether the additional suspension adjustment and Factory identity are worth the original premium for their intended use—not which brochure contains the larger list of features.
