Buy Motobi Motorcycle

History & Heritage

The story of Motobi is a classic Italian drama of family, rivalry, and engineering brilliance. It began in 1949 when Giuseppe Benelli, the eldest of the six Benelli brothers, split from the family firm in Pesaro following a disagreement over business strategy. Giuseppe, a gifted engineer, was not ready for retirement. He established his own factory, FAMOSA (Fabbrica Auto Motocicli Officine Strada Adriatica), only a short distance from the original Benelli plant. By 1950, he was producing motorcycles under the brand Moto B Pesaro, later shortened to Motobi.

The first model, the 98 B (1950), set the template for what would become the brand's trademark. It featured a horizontal 98cc two-stroke engine encased in an aerodynamic, egg-shaped casing. This design was not merely for show; it improved cooling and reduced the visual bulk of the machine. Giuseppe was inspired by the German Imme R100, but he took the concept of the horizontal cylinder much further. By 1952, the range expanded with a 115cc version and the ambitious B200 Spring Lasting, a 200cc two-stroke parallel-twin with a pressed-steel frame that looked years ahead of its time.

A pivotal moment arrived in 1956. While two-strokes had established the brand, Giuseppe introduced the four-stroke OHV engines that would define the "Golden Age" of Motobi. The 125cc Imperiale and the 175cc Catria were born. These engines, quickly dubbed the "Power Eggs" by enthusiasts, combined the horizontal layout with pushrod-actuated valves. They were smooth, mechanically quiet, and incredibly efficient. The Catria 175, in particular, became a legend on the winding mountain roads and hill-climb circuits of Italy.

Giuseppe Benelli passed away in 1957, but his sons, Luigi and Marco Benelli, took the reins. Under their leadership, Motobi leaned heavily into racing. They hired the legendary tuner Primo Zanzani, whose work on the 175cc and 250cc engines turned them into world-class competitors. By 1962, the family rift had healed enough for Motobi to be reabsorbed into the main Benelli works. However, the Motobi brand name was retained for many years, often used to distinguish the sportier, horizontal-engined models from the vertical-cylinder Benellis.

The late 1960s saw the introduction of the 250cc Sport Special and the Tipo S, which offered a more modern aesthetic while retaining the core horizontal engine philosophy. When Alejandro de Tomaso acquired Benelli in 1971, the focus shifted towards multi-cylinder machines. The unique Motobi identity was gradually phased out, with the final models rolling off the line in 1974. Today, those nine Italian National Championships won between 1959 and 1972 stand as a testament to Giuseppe's vision.

Highlights & Features

The defining highlight of any Motobi is the horizontal egg-shaped engine. Unlike the upright cylinders of BSA, Triumph, or even contemporary Ducatis, the Motobi engine lay flat in the frame. This configuration provided several distinct advantages: a significantly lower centre of gravity, improved airflow over the cooling fins, and a very narrow frontal profile. For the British rider used to the vibration of vertical singles, the smoothness of a Motobi was a revelation.

The Catria 175 Sport (1959) is perhaps the most famous model among collectors. With its OHV single-cylinder engine producing between 14 and 18 bhp (depending on the state of tune), it could reach speeds of 80 mph, a remarkable feat for a 175cc machine in the late 1950s. Its handling was so precise that it often humiliated much larger bikes in the twisty sections of the Milano-Taranto and Moto Giro d'Italia races.

Another notable feature was the pressed-steel frame found on the Spring Lasting models. While most manufacturers stuck to tubular steel, Motobi used automotive-style stampings. This made the bikes lighter and exceptionally rigid. It gave models like the 250cc Gran Sport a unique, futuristic look that remains striking at classic shows like Stafford or the National Motorcycle Museum.

For the high-end collector, the Zanzani-tuned racers are the ultimate prize. Primo Zanzani took the standard "Power Egg" and refined it to the extreme, with close-ratio gearboxes, higher compression ratios, and distinctive racing fairings. These machines weren't just fast; they were works of art, representing the pinnacle of Italian small-bore engineering.

Finally, the export heritage is worth noting. In the UK, Motobi machines were often imported by specialist dealers who recognised the growing appetite for sophisticated Italian lightweights. In the US, the Berliner Motor Corporation marketed them under names like the Sprite, Barracuda, and Fireball, ensuring that the Pesaro egg became a global icon of the 1960s café racer scene.

Technical Data

Market Overview & Buying Tips

The market for Motobi motorcycles in the UK is a vibrant niche within the broader classic Italian scene. Because they were produced in smaller numbers than Ducatis or Moto Guzzis, they offer a degree of exclusivity that many collectors find appealing. However, this rarity also means that prices can vary significantly based on condition and history.

Current Price Ranges (2024-2025): Standard road-going models like the Imperiale 125 or the Catria 175 in good, original condition typically fetch between £3,500 and £6,500. Project bikes can be found from £1,500, but buyers should be wary of missing parts. The more desirable 175 Sport models often reach £7,000 - £9,000 at UK auctions like Bonhams or H&H.

At the top end of the market, rare racing versions command a premium. A 1955 Motobi 250cc Gran Sport Racing motorcycle sold for £18,400 at auction, while factory-prepped Competizione models from the 1960s can easily exceed £15,000. Recent results from Iconic Motorbike Auctions show a 1957 Competizione selling for approximately £5,200 ($6,528), while a 1963 Factory Racer achieved over £6,000 ($7,500).

Inspection Points:

1. The Engine Cases: The eiförmige (egg-shaped) engine cases are beautiful but prone to oil leaks if the mating surfaces are damaged. Check the cylinder base gasket and the pushrod tubes carefully.
2. Valve Gear: On the OHV four-strokes, listen for excessive mechanical noise from the top end. While they are naturally quieter than many contemporaries, worn cams or rockers will produce a distinct "clack."
3. The Tank and Tinware: Finding original replacements for the distinctive fuel tanks and mudguards can be extremely difficult. Ensure the metalwork is sound, as fabrication costs for these shapes are high.
4. Authenticity: Look for matching frame and engine numbers. Because many Motobi engines were swapped into racing frames or used for "special" builds in the 1970s, originality is the biggest factor in long-term value.

Parts and Support: The Benelli Motobi Club GB is an essential resource for UK owners. They provide technical advice, dating certificates for registration, and have a network of specialists who can source parts from Italy. Many engine internals are shared with Benelli models of the same era, but specific Motobi castings and trim items often require sourcing from specialists in Pesaro, such as Maltry International.

Performance

Riding a Motobi is a lesson in the importance of chassis dynamics over raw power. The first thing a rider notices on a 175 Sport is the incredible sense of stability. Because the engine sits so low and the mass is concentrated between the wheels, the bike feels as though it is "on rails" through corners. It doesn't require the aggressive wrestling that some heavy British twins of the era demand; instead, it responds to the lightest of inputs.

The OHV engine is a masterclass in linear power delivery. It doesn't have a sudden "hit" in the powerband; rather, it pulls cleanly from low revs right through to the redline. This makes it a perfect companion for the narrow, undulating lanes of the Cotswolds or the Yorkshire Dales. The mechanical silence of the "egg" allows the rider to enjoy the crisp, metallic bark from the exhaust, a sound that is uniquely Motobi.

Braking is handled by drum brakes at both ends. While they lack the bite of modern discs, the twin-leading-shoe fronts found on the sportier models are more than capable of handling the bike's light weight (typically around 110-130 kg). The suspension, often using Ceriani or Marzocchi components on later models, provides a firm but controlled ride that encourages spirited cornering.

Compared to a Ducati 175, the Motobi feels more "civilised." Where the Ducati might be temperamental and vibratory, the Motobi is poised and sophisticated. It is a machine that rewards a smooth riding style, allowing the rider to maintain high corner speeds and carry momentum, exactly the traits that led to its dominance in hill-climb and road racing events across Europe.

Design

The design of the Motobi is a perfect example of the "Form Follows Function" philosophy of the 1950s. Giuseppe Benelli was an engineer first and foremost, and his obsession with aerodynamics led to the creation of the Power Egg. By smoothing out the engine's external surfaces and laying the cylinder horizontally, he reduced the drag coefficient and improved the cooling efficiency by allowing air to flow directly across the head and barrel without obstruction from the frame or front wheel.

The aesthetic result was accidentally beautiful. The curved, organic lines of the engine casing mirrored the trends in mid-century Italian furniture and automotive design. The fuel tanks often featured recessed knee grips and elegant, two-tone paint schemes that emphasised the bike's slim profile. On the Imperiale, the look is understated and classy, while the Sport Special of the 1970s adopted the sharper, more angular lines of the "wedge" era, yet still retained that unmistakable horizontal heart.

The pressed-steel frames of the early twins deserve special mention. They gave the bikes a visual "solidity" that tubular frames lacked. These frames were often painted in contrasting colours, highlighting the structural beauty of the machine. Even the exhaust systems were carefully integrated, with some models featuring high-level pipes that followed the curve of the rear subframe, pre-dating the "scrambler" aesthetic by decades.

In the UK, where the "bitsa" (bits of this, bits of that) culture often led to cluttered designs, the clean, integrated look of the Motobi was a breath of fresh air. It looked like a machine that had been designed by a single mind, every component working in harmony with the next. This coherence is what makes a Motobi stand out even today, whether parked in a city centre or at a gathering of vintage Italian machinery.

Summary

Motobi remains one of the most compelling and underrated marques in the classic motorcycle world. Giuseppe Benelli's "Power Egg" engines are a unique chapter in Italian engineering history, offering a blend of smoothness, handling, and visual flair that few others can match. For the British collector, a Motobi provides an entry point into the world of high-end Italian lightweights without the eye-watering price tags often associated with factory Ducatis or MV Agustas.

It is a machine for the connoisseur, someone who appreciates technical innovation and is looking for a riding experience that is as rewarding as the bike's appearance is distinctive. With a supportive club scene in the UK and a growing global appreciation for small-capacity classics, there has never been a better time to discover the magic of the Pesaro egg.

Word Count Note: I have provided a comprehensive overview. To ensure the 2000+ word requirement is fully met and to add even more depth for the UK SEO context, I will now expand on several specific models and the racing history in more granular detail below.

The Evolution of the "Power Egg": A Model-by-Model Deep Dive

To understand the Motobi appeal, one must look at the progression from the simple commuters of the early 50s to the sophisticated racers of the 70s. The 98 B was the humble beginning. In a post-war Italy desperate for transport, Giuseppe Benelli didn't just build a "moped"; he built a miniature motorcycle with an engine layout that prioritised reliability and ease of maintenance. The horizontal cylinder meant that gravity helped with the cooling, and the "egg" casing protected the delicate internals from the dust and mud of Italy's rural roads.

By the time the Imperiale 125 arrived in 1956, the market was shifting. People wanted more than just transport; they wanted "lo sport." The 125cc OHV engine was a masterpiece of miniaturisation. It used pushrods and rockers to operate the valves, a choice that made the engine taller than the previous two-stroke, yet Giuseppe managed to keep it within that iconic oval shape. The Imperiale was the "sensible" brother, but it laid the foundation for everything that followed.

The Catria 175 was the game-changer. In Italy, the 175cc class was the most competitive segment of the market, both in the showroom and on the track. Motobi's entry was a tour de force. The engine was tough enough to be tuned for racing but docile enough for a Sunday ride to the coast. In the UK, the Catria is often the model that people remember, as it was the one most likely to be seen at the Dragon Rally or parked outside a London coffee bar in the early 60s.

Motobi in the Heat of Competition: The Racing Spirit

Motobi's racing success wasn't built on massive factory budgets. Instead, it was built on the ingenuity of individuals like Primo Zanzani. Zanzani's shop in Pesaro became a temple for those seeking more speed. He didn't just tune engines; he re-engineered them. He developed the "six-bolt" heads to handle higher compression, lightened the flywheels for faster throttle response, and designed the "squish" combustion chambers that allowed the little singles to rev past 10,000 rpm safely.

The results speak for themselves. Between 1959 and 1972, Motobi won nine Italian Junior Championships (Campionato Italiano Juniores). Riders like Eugenio Lazzarini and Alberto Lega became household names in Italy, often beating factory-supported teams from much larger manufacturers. This racing pedigree is why a "plain" Motobi road bike is so well-regarded; the DNA of those championship-winning machines is in every crankcase casting and every frame weld.

In the UK, the racing connection is kept alive through events like the Goodwood Revival and the Classic TT on the Isle of Man. While they may not have the outright power of a Manx Norton or a G50 Matchless, on a tight circuit like Cadwell Park, a well-sorted Motobi 250 can run rings around much larger machines. The phrase "punching above its weight" could have been invented for the bikes from Pesaro.

Technical Excellence: The Zanzani Influence

Zanzani's influence extended beyond the engine. He was one of the first to realise the importance of braking performance in small-capacity racing. He developed his own range of twin-leading-shoe drum brakes, which became famous for their power and fade resistance. These "Zanzani brakes" are now highly sought-after parts in their own right, often selling for hundreds of pounds to restorers looking to build the ultimate Motobi racer.

He also experimented with frame geometry. While the factory road bikes used a standard "loop" frame, Zanzani-built racers often featured modified subframes and lowered seat heights to tuck the rider into a more aerodynamic "tuck." This obsession with the rider-machine interface is what makes a Zanzani Motobi feel so "right" from the moment you swing a leg over it.

The British Connection: Importing and Enthusiasts

While Motobi was never a "household name" in the UK like BSA or Norton, it always had a dedicated following. In the 1960s, adventurous British riders who wanted something different from the "oil-leaking" domestic products turned to the Italian lightweights. Shops like Coburn & Hughes and later specialists in the Midlands ensured that a steady stream of Motobis reached British shores.

The Benelli Motobi Club GB remains the heart of the community. Every year at the Stafford Show, the club stand is a focal point for lovers of the "Power Egg." Here, you can find everything from pristine, nut-and-bolt restorations to "oily rag" survivors that have been in the same family for fifty years. The camaraderie among Motobi owners is well known, partly because of the shared challenge of keeping these rare machines on the road, but mostly because of the shared joy of riding something so fundamentally "different."

The "Egg" in the Modern Era: A Collector's Perspective

Why buy a Motobi today? For many, it's about the aesthetic. In a world of cookie-cutter modern bikes, the Motobi is a piece of kinetic sculpture. It looks fast even when it's standing still. For others, it's the mechanical intrigue. Taking apart an "egg" engine is a journey into the mind of Giuseppe Benelli; you see the clever oiling system, the elegant valve gear, and the sheer quality of the castings.

From an investment standpoint, Motobi is a "slow burner." While they haven't seen the astronomical price jumps of the Ducati 750 SS or the MV Agusta 750 Sport, they have shown a steady, reliable increase in value. They are "safe" classics; the people who buy them tend to keep them for a long time, which means that when a good one does come onto the market, there is always plenty of interest.

For the new collector, the Imperiale 125 is the perfect entry point. It's simple to work on, parts are relatively available, and it's a joy to ride on a sunny afternoon. For the seasoned enthusiast, the 175 Sport or the 250 Sport Special offers a level of performance that can still surprise on a modern road. And for those with deep pockets and a passion for history, a Zanzani racer is the ultimate expression of Italian racing passion.

In conclusion, the Motobi is more than just a motorcycle with a funny-shaped engine. It is a symbol of independence, engineering courage, and Italian style. It is a brand that refused to follow the crowd, choosing instead to find its own path to performance. That path led to nine championships, a global fan base, and a legacy that continues to shine in the classic bike world today. If you are looking for a machine that offers soul, character, and a truly unique riding experience, your search should start, and might very well end, with the "Power Egg" of Pesaro.