OUR STORY
The evolution of our engines
Every engine we build tells a part of our story.
We started with passion and a strong desire to race, and we've never stopped since.
Our first engine, simple yet robust, was the starting point: entirely homemade, built with the experience of those who live and breathe engines every day.
Then came the evolution: more power, more technology, more precision.
We experimented, raced, won... and sometimes even lost, but always learning.
Today, our engines are the result of years of development, testing, and continuous improvement.
From our historic two-stroke kart engines to our latest designs for motocross and special applications, every model has been a step forward.
And the best part?
We never stop. The next engine is already in the works.
The founder of Motori Seven designs and builds his first kart engine. This marks the birth of the 125cc counter-rotating tandem twin-cylinder, which goes on to compete successfully in numerous races across Italy.
The first 125cc single-cylinder kart engine with a rotary valve is built.
A second twin-cylinder engine is developed, but after the first races, it is abandoned due to the sporting authorities' decision to ban twin-cylinder engines.
With the F.I.K. introducing the new 125 National category for reed valve engines, the MAR-BEN engine is developed together with brothers Davide and Marco Martini. It competes in Italy with mixed results.
The first SEVEN 125 reed valve engine, named “SEVEN L”, is born for the international F.C. category.
Following the creation of the INT 125 ICC category, Seven homologates the SEVEN L1 98 model, which competes across Europe with good results, winning the 125 ICC Grand Prix in Monte Carlo with Hungarian driver Bakos, as well as the Austrian and Australian championships.
MAR-BEN
MAR-BEN
Following the new FIA homologation, Seven develops the “L2” engine, which competes in the European Championship, achieving 3 podiums with Austrian driver Andreas Shrangl and Norwegian driver Martin Stenshorne. In the same year, the “D1” model is also created for Formula C, featuring a rotary valve intake.
In preparation for the new homologation, SEVEN develops a new, technologically advanced engine equipped with a balancing countershaft — the only one in the 125 ICC category to feature this innovation.
Throughout 2003, SEVEN’s design department focused on developing the L4 TAG engine, which was introduced and delivered to customers at the beginning of the following year. It was also the year that SEVEN, with driver Andrea Giacobbi, won the Italian Championship in the 125 ICC category.
In April 2004, deliveries of the L4 TAG single-speed engine began, receiving great commercial success and high customer satisfaction both technically and in terms of performance. The engine also achieved excellent results in competitions. During the summer of 2004, SEVEN also began developing its own pneumatic exhaust valve system.
Following the strong performance of the L4, SEVEN developed a new engine based on the single-brand model, featuring a two-speed gearbox, automatic clutch, and electric start. This led to the creation of the new 125 L5 M.A. TAG 2-speed. In November, SEVEN also produced its first 175 L5 engine with 45 HP, delivering the first unit to Mr. Marco Morini from Faenza.
This was the year of SEVEN's debut in motorcycles. Through a significant economic and engineering effort, the first fully in-house motorcycle was created. The completely new engine, named L6 A, was developed in 50cc, 70cc, and 80cc versions. The frame, brakes, wheels, seat, fuel tank, and fairings were all manufactured by SEVEN.
SEVEN D1
SEVEN L1
Some components of the 20 HP electric engine, designed and built by Motori Seven on behalf of an external company.
A GP 125 engine is designed, which, with the proper modifications, can also be used in motocross and karting championships.
In 2009, Seven focused on developing 80cc motorcycles with 17-inch wheels for the new F.M.I. category. The 17-inch rims were also manufactured in-house, and their commercialization began.
2010 marks the year of ecology for Seven. In the design department, work begins on five prototypes of a 20 HP motorcycle with a 6-speed gearbox, powered by an electric motor. This project is developed on behalf of a company operating in the clean energy sector. After successful testing, production and sales are scheduled to begin in 2011.
Innovative ideas expanded into new sectors, and in collaboration with architect Ennio Pasini, SEVEN began experimenting with the development of a small wind power system capable of generating up to 1 kW of energy anywhere.
The year of the “Fast Rent”. SEVEN built its first fully in-house rental kart, designed for beginners who want to experience the real thrill of a racing kart — 2-stroke and 2-speed.
The ambitious project of the 500cc 2-stroke 4-cylinder engine by our friend Christian Polverelli, intended for the construction of a 500 GP Replica, was brought to life thanks to the support of Oscar Benedetti, owner of Motori Seven. All power-generating components were designed and manufactured by Motori Seven.
SEVEN L2
SEVEN L3
SEVEN L8 Jr
Motori Seven collaborates in the development of the engine for a 500 GP 2-stroke replica.
Motori Seven focuses on the development of the Seven L7 engine, a 125cc 6-speed engine delivering 35 HP, designed for the 125 pre-GP motorcycle category.
The first 3 prototypes are built, but production is later halted due to the sudden elimination of the category by the motorcycle federation.Significant investments during the year see us involved in various projects for other brands outside the world of karting and speed motorcycles. We design and manufacture engine kits for Vespa and Lambretta, thus opening our doors to anyone in need of 3D design and foundry model making.
Development in the karting sector has never stopped, and during the year, a new version of the L3 engine is released for all our drivers, featuring numerous technical innovations.We proudly prepare 50cc motocross bikes, both with the L6 geared engine and with a prototype single-speed engine equipped with a variator. The progress achieved through CAD design systems and FEM analysis has led us to successful results.
In collaboration with Battellini Motors, we handle the entire 3D design of the air-cooled 125cc paramotor engine. We are bringing several innovations to this field, including an exhaust valve — a feature never before implemented in paramotor engines.This is without a doubt the year of the innovation the karting world had long been waiting for. The Seven L8 is the world’s first kart engine specifically designed in the 80cc category for young drivers aged 12 to 15.
The success is unmistakable from the very first presentation, and starting in 2020, there will be an official category in collaboration with BirelArt.
Design, model making, machining, and assembly are 100% carried out by Motori Seven.
Throughout the year, we actively contribute with model making and machining to build the first prototypes of the BM125 paramotor, which is presented at the renowned Coupe Icare trade show.In 2022, a major milestone is reached: the homologation of the L9 engine. A project born from experience and a constant drive for innovation, designed to deliver high performance, reliability, and ease of use. The L9 represents a new generation of 2-stroke engines by Motori Seven, developed to compete at the highest levels.
2023 marks Motori Seven’s entry into the world of motocross with the development of the L10 engine. A 2-stroke engine designed from the ground up to deliver low-end torque, lightness, and maximum responsiveness. The L10 is the answer for those seeking performance and fun, even off the asphalt.
A new home for Motori Seven
Motori Seven takes a major step forward by moving into a new headquarters—larger, more modern, and more functional. This change marks the beginning of a new chapter, designed to support the company’s growth and make room for new projects, technologies, and collaborations. A space tailor-made to carry our passion forward, with even more strength and vision for the future.
SEVEN L9
SEVEN L10