Introduction

Aprilia - RS 125 Replica (2021–2022, ZD4XAA00)

The Aprilia RS 125 Replica (2021–2022, model code ZD4XAA00) is a variant of the new RS model featuring special design elements inspired by racing machines and factory bikes. It combines modern technology with sporty styling and targets riders who value both performance and aesthetics.
Technically based on the standard RS 125, the Replica version adds visual highlights and distinctive graphics to underline its racing character. This lightweight sportbike with high-quality equipment appeals to both ambitious beginners and experienced riders with a passion for MotoGP design.

Model History

With the launch of the RS 125 in 2021, Aprilia also introduced a Replica version to emphasize the model's sporty edge. The Replica was offered alongside the standard version and differs mainly through bold color schemes, racing-inspired graphics, and distinctive decals reminiscent of Aprilia’s racing heritage.
Technically, it shares the same components as the base model – engine, chassis, and electronics remain identical. The model code ZD4XAA00 covers both standard and Replica versions, as the differences are purely visual.

Technical Details

The RS 125 Replica is powered by a liquid-cooled single-cylinder four-stroke engine with a displacement of 124 cc. It produces a maximum output of **11 kW (15 hp)** at 10,000 rpm and a peak torque of **11.2 Nm** at 8,000 rpm. It features electronic fuel injection (EFI) and a 6-speed manual gearbox.
Power is transferred to the rear wheel via chain, with a multi-disc wet clutch. A three-way catalytic converter ensures compliance with emission regulations. Top speed is around **110 km/h**, depending on gearing and conditions.

Chassis and Brakes

The bike is built on an aluminum twin-beam frame with a bolt-on subframe – offering both rigidity and light weight. It is equipped with an upside-down telescopic front fork and a centrally mounted rear mono shock.
Braking is handled by a 300 mm front disc and a 218 mm rear disc, with a single-channel ABS system for added safety.
It rolls on lightweight alloy wheels fitted with **100/80‑17 front** and **130/70‑17 rear** tires.

Dimensions & Weight

Seat height is approximately **820 mm**, making it accessible for a wide range of riders. The curb weight is around **144 kg**, allowing for agile and stable handling. The fuel tank holds **14.5 litres**, ensuring a decent range with moderate fuel consumption.
Overall dimensions are about 1,968 mm in length, 760 mm in width, and 1,135 mm in height. Wheelbase is **1,350 mm**, contributing to a compact and responsive ride.

Color Variants

The RS 125 Replica was offered in exclusive racing liveries that clearly set it apart from the standard model. Common designs featured dark or high-contrast base colors with dynamic Aprilia graphics in red, white, black, and green. Limited editions were also available, such as “GP Replica” versions mimicking Aprilia's MotoGP machines of specific seasons.
Visual updates focused on the fairings, stickers, painted surfaces, and cosmetic highlights – with no technical changes.