This comprehensive service manual provides detailed instructions and technical specifications for the Aprilia RS 125 motorcycle manufactured in 2003. It is designed for professional technicians but also includes sufficient information for knowledgeable individuals to perform maintenance and repair tasks. The manual covers a wide range of topics, including engine assembly and disassembly, electrical system diagnostics and troubleshooting, suspension and brake system adjustments, and detailed component specifications. You'll find clear diagrams, step-by-step procedures, and detailed explanations to help you understand the workings of your Aprilia RS 125, enabling you to perform repairs and maintenance effectively.

The Aprilia RS 125, a legend in the world of entry-level sport bikes, was first introduced in 1992 and has since been a staple in the hearts of young riders. The 2003 model, specifically, represented a significant evolution in the RS 125 lineage. This iteration showcased a revised, more aggressive design, boasting sharp, angular lines and a striking fairing. The RS 125's iconic single-sided swingarm, a feature that has been synonymous with the model since its inception, remained a hallmark of its design. This unique feature not only enhanced the bike's aesthetics but also contributed to its handling prowess, offering a distinct advantage in nimble cornering. Powering the 2003 RS 125 was a liquid-cooled, single-cylinder, 124cc engine that, while adhering to the 15 horsepower limit imposed by European regulations, delivered a respectable punch for its class. The RS 125 2003 offered a range of performance features that resonated with riders, including a lightweight construction, a rigid frame, and a powerful braking system, all contributing to a thrilling riding experience. The 2003 RS 125 became a coveted machine, not only for its performance and aesthetics but also for its commitment to practicality. The bike featured a digital instrument panel providing vital information at a glance. Other practical features included a spacious under-seat storage compartment, allowing riders to carry essential items on their adventures. This model was designed to be user-friendly, featuring a comfortable riding position and ergonomic controls. The 2003 RS 125 wasn't simply a performance machine; it was a complete package offering a blend of speed, style, and practicality, solidifying its status as a true icon in the world of 125cc motorcycles. The RS 125 2003 remains a popular choice among experienced riders seeking a nostalgic ride or those new to the world of motorcycles, eager to experience the thrill of this iconic machine.