Ducati 851 SP 4 1992 - Specifications & Review

Introducing the 1992 Ducati 851 SP 4, a striking embodiment of Italian engineering and a defining model in the sport motorcycle category. Positioned as a high-performance machine, the 851 SP 4 was designed to cater to riders who craved the thrill of the racetrack while still being street-legal. With its aggressive styling, lightweight chassis, and powerful engine, this Ducati quickly ascended the ranks of enthusiast favor, offering an exhilarating blend of speed and sophistication. As part of Ducati’s celebrated 851 lineup, the SP 4 was a precursor to the modern superbikes we know today, showcasing the brand's commitment to performance and innovation.

At the heart of the 851 SP 4 lies a robust 888cc V2, four-stroke engine that generates an impressive 97 horsepower at 8,400 RPM. This powerplant is mated to a smooth six-speed gearbox, ensuring that the rider can seamlessly engage with the bike’s capabilities. The motorcycle’s top speed of 232 km/h (144.2 mph) is a testament to its racing lineage, while the 11.5:1 compression ratio and advanced cooling system optimize performance across various riding conditions. The bike’s lightweight design, tipping the scales at just 210 kg (463 pounds) with fluids, enhances its agility and responsiveness, allowing riders to carve through corners with confidence and precision.

Ducati has infused the 851 SP 4 with a range of key features that elevate the riding experience. The dual disc front brakes offer superior stopping power, while the single disc at the rear provides ample control, ensuring stability even at high speeds. The bike’s 20-liter fuel tank strikes a balance between range and weight, making it suitable for both spirited rides and longer journeys. Additionally, with four valves per cylinder, the engine’s breathing is optimized for both power and efficiency. The attention to detail is evident in the bike’s design, which marries form and function, making it a visual stunner that also delivers on performance.

PROs:

1. Powerful V2 Engine: The 888cc engine provides exhilarating acceleration and top-end performance, making it a joy for speed enthusiasts.
2. Lightweight and Agile: Weighing just 210 kg, the 851 SP 4 feels nimble and responsive in corners, enhancing the overall riding experience.
3. Racing Heritage: With its roots in racing, the bike offers a level of engineering and performance that is both thrilling and reliable.

CONs:

1. Limited Comfort for Long Rides: The sport-oriented design may lead to discomfort on prolonged journeys, especially for those not accustomed to aggressive riding positions.
2. Fuel Capacity: The 20-liter fuel tank may require more frequent stops during longer rides compared to touring-focused motorcycles.
3. Maintenance Intensity: Like many high-performance bikes, the 851 SP 4 may demand more frequent maintenance and care, which can be a consideration for potential owners.

The 1992 Ducati 851 SP 4 remains a revered classic among motorcycle aficionados, embodying the spirit of sport riding with its combination of power, precision, and style.