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2024 · Supersport · Buyer's Guide
Small Bike, Real Chassis
Aprilia built the RS 457 around a 457cc parallel twin with a 270-degree crank, so it pulls with a deeper, off-beat thump closer to a V-twin than the flat buzz most small twins make. Power lands at 48 hp and torque at 32 lb-ft, with roughly 80 percent of that torque on tap by 3,000 rpm, so it never feels strangled in normal riding. The real story sits underneath: a twin-spar aluminum frame, rare at this price and displacement, which is why the chassis behaves like something far more expensive. In Europe it lands on the A2 ceiling; in the US it stands in for the old single-cylinder entry sportbikes.
On the road it feels light, accurate, and unintimidating, the kind of bike that flatters a newer rider while still giving an experienced one real front-end feel to lean on. It ages best as a weekend and canyon tool rather than a daily hauler. The honest caveat is reliability. Early bikes have shown a cluster of engine troubles, batteries that drain flat after a few days standing, snatchy fuelling at crawling speed, and front pads that go soft when you push. Buy with eyes open, check the service history, and it earns its keep.
Spec sheets don't ride bikes, but they set the baseline.
| Power | 48 hp (35 kW) @ 9,400 rpm |
|---|---|
| Torque | 32 lb-ft (44 Nm) @ 6,700 rpm |
| Displacement | 457 cc |
| Engine | Parallel twin |
| Bore × stroke | 69 × 61.1 mm |
| Compression | 10.5:1 |
| Cooling | Liquid-cooled |
| Fuel system | EFI (throttle body) |
| Gearbox | 6-speed |
| Final drive | Chain |
| Frame | Aluminum twin-spar |
| Fork | Upside-down (USD) |
| Front brake | 320 mm |
| Rear brake | 220 mm |
| Front tire | 110/70-17 |
| Rear tire | 150/60-17 |
| Wheelbase | 53.1 in (1349 mm) |
| Seat height | 31.9 in (810 mm) |
| Wet weight | 386 lb (175 kg) |
| Fuel capacity | 3.4 gal (12.9 L) |
| Top speed | 118 mph (190 km/h) |
| Fuel economy | 69 mpg (US) |
Equipment check
Chassis
Connectivity
Drivetrain
Lighting
Safety
Swing a leg over and the 31.9-inch seat with 386 pounds wet read instantly: this is a small, narrow motorcycle you can plant both feet under and flick with your hips rather than your arms. Thumb the starter and the 270-degree crank gives it a low, syncopated burble at idle that you feel through the pegs as much as you hear it. Out on a real road the bars sit low but the reach stays civil, so an hour in the hills does not fold you in half. Vibration stays smooth through the mid-range, the clutch is light, and the whole bike feels eager to change direction the moment you ask. At a walking-pace crawl it does get fidgety, and the front lever wants a firm squeeze before it bites, two things your hands notice early.
Battery flat-after-standing / regulator-rectifier failure
The battery goes flat after a few days of inactivity. The incidence is approximately 10–15% of units sold. Root cause is consistently traced to a faulty Regulator-Rectifier (RR) unit, which Aprilia replaces under warranty. Outcomes are mixed: some owners report drain returning even after RR swap — at least one owner documented more than 20 jump-starts in year one before the RR was replaced, and voltage has been observed continuing to drop to ~10 V after extended idle even post-replacement.
Engine reliability cluster: cam-chain tensioner malfunction, cylinder compression loss, occasional engine failure
A cluster of early-life engine failures was reported by Indian RS 457 owners through 2024 and early 2025, including cam-chain-tensioner malfunction, cylinder compression loss, and at least one documented engine failure during a highway test ride. Aprilia India initially attributed the issues to "unauthorised aftermarket modifications and irregular service schedules" (statement 2025-05-21), then twelve days later (2025-06-02) issued a fleet-wide programme: cam-chain tensioner replacement offered to all RS 457 owners regardless of symptoms, plus an extension of the warranty from 3 yr / 36,000 km to 4 yr / 48,000 km, with the previous single-owner restriction removed. The combination of public statement and rapid remediation programme is consistent with a real underlying cam-chain-tensioner issue rather than owner-induced failures.
Snatchy low-rpm fuelling and occasional stall from idle
Snatchy throttle response and occasional stall when opening the throttle gently from idle, e.g., pulling away in heavy traffic or at a roundabout. Some dealer-level fuel-map updates reportedly address it; aftermarket ECU flashes are commercially available (BT Moto, FuelX). Behaviour is typical of 270°-crank parallel twins more broadly and not unique to the RS 457.
Front brake fade and soft initial bite (stock organic pad compound)
The 320 mm / 4-piston ByBre front brake setup is mechanically adequate, but the OE-spec organic brake pads fade rapidly under hard use and feel soft on initial bite. Track riders consistently report fade after a few hard laps; road riders describe the brakes as lacking initial bite. Many owners replace the stock pads with sintered compound as a first modification. **This is an OE specification choice rather than a hardware defect** — the same caliper and disc with a more aggressive pad compound performs significantly better. Braking performance remains an unresolved characteristic of the 457 platform.
Where this Aprilia RS 457 pulls ahead of — or falls behind — its rivals on the numbers, and the typical bike in its class on character.
Power
Torque
Displacement
Wet weight
Top speed
Seat height
Forget spec-sheet bragging. Here's who the RS 457 is actually built for.
For carving the Hill Country on a Saturday and rolling into a BBQ joint after, the light, easy RS 457 fits perfectly. Just ride it often, since sitting for days can leave the battery flat.
Made for Austin / Texas Hill Country · Twisted Sisters · Austin / Handbuilt Motorcycle Show
Its roll speed and precision are made for Angeles Crest, and a skilled rider will love the front-end feel. Push hard on a long day, though, and the stock brakes fade while the 48 hp runs out of road.
Made for Angeles Crest Highway · Coronado Trail / US 191 · Highway 1 / Big Sur
If you ride the Dragon and Cherohala for technique over top speed, this is ideal: light, accurate, and happy to be ridden by the corner rather than the straight. The modest power rewards clean lines.
Made for Back of the Dragon · Blue Ridge Parkway · Cherohala Skyway