Aprilia X 250TH: First Look

When Aprilia Racing pulled the covers off the Aprilia X 250TH at the US Grand Prix in Austin on March 27, 2026, the paddock went quiet. Thirty bikes. Two hundred and forty horsepower. And the world’s first carbon-carbon braking system ever fitted to a production motorcycle. The Italians from Noale just rewrote the rulebook on what a street-legal — or rather, track-bound — factory special can be.

This is the sixth generation of Aprilia Racing’s “X” program, a lineage that started with the RSV4 X in 2019, followed by the Tuono X, the RSV4 X Trenta, the RSV4 X ex3ma, and the RSV4 X-GP. Each iteration has pushed the boundary between a factory bike and a full MotoGP prototype further. The 250TH edition does it with a purpose: it was built to mark the 250th anniversary of America’s Declaration of Independence, and 25 of the 30 units produced are reserved for the US market at $150,000 USD MSRP.

Aprilia X 250TH Engine: 240 HP and a Race-Spec V4

Under the all-carbon fairing is a 1099cc 65° V4 built by Aprilia Racing to World Superbike Championship specification — the same engine family at the heart of the 2025 Aprilia Tuono V4. Peak power is 240 HP at 13,750 rpm. Maximum torque hits 131 Nm at 11,750 rpm. The engine spins to a 14,100 rpm ceiling and the whole package checks in at just 165 kilograms dry — a power-to-weight ratio that makes most race bikes look pedestrian.

The power figure was extracted through a series of targeted upgrades: increased compression ratio, a Sprint Filter high-permeability racing air filter with dedicated intake trumpets, an SC Project titanium full-system exhaust in MotoGP replica configuration, and an STM dry clutch. Electronics are handled by the Aprilia Racing APX control unit — a direct evolution of the ECU that helped Max Biaggi win the World Superbike title — with fully configurable traction control, engine brake per gear, front lift mitigation, and an integrated GPS system. Each bike ships with a Yashi laptop preloaded with Aprilia Racing’s own ECU management software, so you’re not dependent on a dealership to tune your setup.

The Aprilia X 250TH Carbon-Carbon Brake System: A World First

Here’s the headline no one in the industry saw coming. The Aprilia X 250TH is the first production motorcycle on earth equipped with a carbon-carbon braking system. Until now, carbon-carbon discs belonged exclusively to MotoGP prototypes and Formula 1 cars. Now they’re on a bike you can book online.

The front system uses 340mm high-mass carbon discs — the exact spec run by Marco Bezzecchi and Jorge Martín on Aprilia’s RS-GP — paired with carbon brake pads and a billet aluminum caliper with cooling fins. The weight advantage is significant: carbon discs are half the mass of steel rotors, and carbon pads run roughly one-third lighter than sintered alternatives. Critically, the carbon system maintains consistent bite characteristics under extreme thermal loading, meaning lap-after-lap performance doesn’t degrade the way conventional setups do.

Aprilia Racing Technical Director Fabiano Sterlacchini put it directly: “The carbon discs allow extreme braking without stressing the braking system. This is MotoGP-derived technology, partly utilized in Formula 1 as well, and it represents an entirely new feature that will allow braking performance never before seen on a bike sold to the general public.”

Aprilia X 250TH Aerodynamics: Straight Off the RS-GP25

Aerodynamics on the Aprilia X 250TH aren’t adapted from racing — they are racing. Aprilia Racing has transplanted its latest-generation MotoGP seat wings, which debuted on the RS-GP25, directly onto this machine, alongside tail wings, a rear wing, cornering wings, and an under-wing arrangement. All bodywork is full carbon manufactured by PAN Compositi under the same protocols used for the factory MotoGP bikes.

The patented ground-effect system integrated into the side fairings generates downforce proportional to lean angle, increasing mid-corner grip and stability. On the straight, the X 250TH produces five times the vertical load of a standard RSV4, planting the front and reducing wheelies. In cornering lean, the figure climbs to three times the load of the production bike. A structural carbon saddle support made with PAN Compositi’s sandwich-layer carbon fibre process rounds out the rear-end package, optimizing feel and bringing rear-tyre feedback even closer to what you’d experience on a factory prototype.

Chassis and Suspension: The Aprilia X 250TH Rolling Package

The frame is an aluminum double-trellis unit carrying dedicated Öhlins suspension at both ends: the FKR pressurized cartridge fork up front — CNC-machined fork bottoms designed for MotoGP-spec Brembo caliper spacing of 108mm — and the TTX mechanically managed piggyback shock at the rear, derived directly from MotoGP. Both units are fully adjustable in spring preload, compression, and rebound, with setups developed specifically for this build.

Rolling stock is Marchesini M7R GENESI forged magnesium wheels — front 17″×3.5″, rear 17″×6″ — shod with Pirelli Slick Diablo SBK tires. The numbered CNC-machined steering plate, adjustable Spider footpegs, Jetprime handlebar switches, and Domino clutch lever complete a cockpit that means business. Water and oil radiators are oversized WSBK-spec units. Final drive runs a titanium rear sprocket and a lightened front sprocket by PBR on a 520 Regina chain.

How to Get the Aprilia X 250TH: 25 Units, $150K, Book Now

Of the 30 units produced, 25 are allocated to the US market at $150,000 MSRP. The remaining five go to Europe and the rest of the world at €115,000 + VAT. Each numbered, limited edition machine ships with RCB titanium front and rear stands, IRC tire covers, a personalized bike cover, and the Yashi laptop. Online booking is open now at factoryworks.aprilia.com.

The Aprilia X 250TH is not street legal. It is a track weapon wearing a patriotic paint scheme and the most advanced braking system ever bolted to a bike in the history of motorcycle manufacturing. Aprilia Racing CEO Massimo Rivola said it well: “Over the years, the X bikes have become highly sought after for both collectors and for those seeking to experience a thrill that is extremely close to what MotoGP riders feel.”

About The Author

Allan Lane

Philadelphia born and bred, Allan Lane is the Publisher and Editor in Chief of digital magazines. He launched his first publication, SportBikes Inc Magazine in 2010, followed by dosage MAGAZINE in 2019. Recently, Allan launched his third online publication, Club For Man. As a journalist, Allan covers fashion, lifestyle, culture, art, and motorcycles.

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