Product brand
UnclaimedItom was an Italian manufacturer of mopeds and small motorcycles that operated from 1944 until 1975.
Last updated August 26, 2026
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Overview
Itom, an acronym derived from Industria Torinese Meccanica, was an Italian motorcycle and moped manufacturer established in Turin in 1944. The company began through an association with bicycle manufacturer Benotto and initially concentrated on auxiliary engines that could be fitted to bicycles. Its early power units were sourced from Officine Meccanica Broglia, another Turin-based engineering business, while later development increasingly moved toward complete Itom vehicles and engines. A significant technical influence on the company was Giuseppe Spotto, a Sicilian engineer and former Second World War pilot who joined the business during its early years. Working with Silvano Bonetto, Spotto helped develop a succession of compact engines and layouts. The engines were first installed on the front fork of bicycles, then behind the saddle, and eventually in the central position between the pedals. This configuration became associated with the company's Tourist model and helped Itom move beyond the auxiliary-engine market. During the 1950s and 1960s, Itom built a range of lightweight mopeds and small motorcycles, generally using engine capacities and configurations suited to the Italian market. Important models included the Sirio, Esperia, Astor, Astor Sport, Tabor and Junior. The Astor Sport, especially its four-speed pedal-gearbox versions, became the brand's best-known product and was offered in distinctive yellow-and-white or red-and-white finishes. Itom also produced competition-oriented versions for sport, motocross and regularity use, allowing the brand to build visibility among private racers and young riders. The company moved from Turin to the former Fratelli Bosio textile mill in Sant'Ambrogio di Torino in 1957 or 1958. At the end of the 1950s it was known as IMSA, or Industria Meccanica Sant'Ambrogio, reflecting the new location, although Itom remained the consumer-facing marque. The Sant'Ambrogio plant became the center of the company's motorcycle production. In 1965, approximately 130 people worked there. A fire on 26 August 1965 destroyed the factory roof and damaged machinery and completed products, but production continued afterward. Itom's business was not limited entirely to two-wheeled vehicles. The company also manufactured air compressors using a rotary design rather than the more conventional piston system, and it built a three-wheeled motortricycle based on the architecture of its regular motorcycles. Nevertheless, mopeds remained its principal commercial activity. The company was unusual among contemporary Italian small-motorcycle manufacturers because it produced many of its own engines rather than relying primarily on specialist suppliers such as Minarelli or Franco Morini. In 1973, Itom ended in-house engine production and began fitting some models with Moto Morini engines. That year it also displayed larger off-road machines at the Milan EICMA exhibition, including the Gringo motocross model with a five-speed Zündapp 125 power unit and an Enduro model using a five-speed 125 cc Minarelli engine. The Itom 125 range achieved limited sales, and the company's core output remained concentrated on small-capacity mopeds and motorcycles. Itom ceased production at the Sant'Ambrogio plant in 1975. Although the manufacturing business is defunct, the marque remains present in historic-motorcycle circles, particularly in Italy and elsewhere in Europe. Restored Astor and other Itom models are displayed at enthusiast gatherings and are associated with the company's competition history. In 2010, the road beside the former Sant'Ambrogio factory was named Via Itom, providing a lasting local reference to the manufacturer.
History
Itom was founded in Turin in 1944 under the name Industria Torinese Meccanica. Its earliest activity developed in cooperation with bicycle manufacturer Benotto and involved motorizing bicycles with engines supplied by Officine Meccanica Broglia. The company subsequently recruited engineer Giuseppe Spotto, who worked with Silvano Bonetto on new compact engines and vehicle layouts. Itom progressively moved from fork-mounted and saddle-mounted auxiliary engines to centrally mounted units positioned between the pedals, a format used by the Tourist model. The company expanded its range during the 1950s. The Esperia, introduced in 1953, used a monocoque structure. The Astor and Astor Sport followed in 1954, with two- and three-speed hand-operated gear systems, while the Astor Sport Competizione appeared in 1957. In 1959 Itom introduced the 65 cc Tabor, initially with a four-speed manually operated gearbox and later with a pedal-operated preselector under the engine. The company also moved its industrial base from Turin to Sant'Ambrogio di Torino in 1957 or 1958, taking over the former Fratelli Bosio textile factory. Around this time it adopted the corporate name IMSA, Industria Meccanica Sant'Ambrogio. The Sant'Ambrogio period was the company's most important production phase. The Junior arrived in 1960, and the four-speed Astor Sport launched in 1965 became the marque's signature model. Its yellow-and-white and red-and-white liveries are strongly associated with the brand. Itom continued to develop sport, motocross and regularity variants, while also producing standard mopeds with one, two, three or four speeds. In addition to motorcycles, it manufactured rotary air compressors and a three-wheeled motortricycle based on its motorcycle design. Itom participated in national and international racing between 1950 and 1969. The Astor was used extensively by private riders, trainers and the factory itself. Sergio Bongiovanni won the Italian Mountain Championship in 1966 after finishing second in the preceding two seasons. Itom machines also appeared in 50 cc competition in several European countries. Jean-Claude Serre won a 50 cc national race at Clermont-Ferrand during the 1961 French Grand Prix weekend, while Belgian rider Pierrot Vervroegen finished third in the 1961 FIM 50 cc classification. The Astor was also used early in the careers of riders including Mike Hailwood, Bill Ivy, Dave Simmonds and Jean-Pierre Beltoise. In 1962, Beryl Swain rode an Itom in the Isle of Man Tourist Trophy and became the first woman to compete in and place in that event. A factory fire on 26 August 1965 destroyed the roof and damaged machinery and finished goods. Despite the setback, the company continued operating and employed about 130 people in that period. In 1969 it launched the Sirio Cross, followed by a new Astor version in 1970. In 1973, Itom stopped making engines internally and adopted power units from Moto Morini for its models. It also displayed the Gringo and Enduro 125 cc off-road motorcycles at EICMA, using Zündapp and Minarelli engines respectively. These larger models sold in limited numbers, and the business remained primarily a moped manufacturer. Production ended at Sant'Ambrogio in 1975, bringing the industrial life of the Itom brand to a close. The marque later acquired a collector following. Historic Itom motorcycles are restored and exhibited at events across Europe, including the ITOM at Home gathering held at the former factory in 2019. In 2010, the municipality commemorated the manufacturer by naming the road beside the former plant Via Itom.
- 2019
ITOM at Home gathering held
[1]Collectors gather at the former production site for the first ITOM at Home event.
- 2010
Via Itom commemorates the company
[1]The road serving the former factory is named Via Itom.
- 1975
Production ends
[1]Manufacturing ceases at the Sant'Ambrogio di Torino plant.
- 1973
Itom adopts external engines
[1]In-house engine production ends, and Moto Morini engines are fitted to Itom models.
- 1969
Sirio Cross launched
[1]Itom adds the Sirio Cross to its off-road-oriented range.
- 1965
Astor Sport four-speed model launched
[1]Itom introduces the best-known four-speed pedal-gearbox version of the Astor Sport.
- 1965
Factory fire
[1]A fire damages the roof, equipment and finished products at the Sant'Ambrogio plant.
- 1960
Junior introduced
[1]The Itom Junior joins the company's lightweight model range.
- 1959
Tabor introduced
[1]Itom launches the 65 cc Tabor with a four-speed transmission.
- 1957
Astor Sport Competizione launched
[1]Itom introduces a competition-oriented Astor Sport variant.
Products and positioning
A technically distinctive Italian maker of lightweight mopeds and small motorcycles, positioned around in-house engineering, accessible sporting performance and participation in grassroots motorcycle competition.
Moped and auxiliary-engine motorcycle
Sirio
Sirio was among Itom's earliest named products. The original production concept involved a motorized bicycle using an engine supplied by Officine Meccanica Broglia. A later Sirio Cross version extended the name into the company's off-road and competition-oriented range.
Moped · 1953
Esperia
Introduced in 1953, the Esperia used a monocoque structure and represented Itom's transition from simple auxiliary engines toward more integrated lightweight vehicles.
Moped · 1954
Astor
The Astor family was one of Itom's central product lines. It covered lightweight mopeds with progressively more sporting specifications and helped establish the company in the Italian small-motorcycle market.
Sport moped · 1954
Astor Sport
The Astor Sport became Itom's most famous model. Its later four-speed pedal-gearbox versions were sold in recognizable yellow-and-white or red-and-white liveries and were used by private riders, racing trainers and the factory in competition.
65 cc motorcycle · 1959
Tabor
The Tabor was a 65 cc model derived from Itom's 50 cc designs. It used a four-speed transmission, initially operated manually and later controlled through a pedal preselector located beneath the engine.
Moped · 1960
Junior
The Junior was introduced in 1960 as part of Itom's lightweight road-going range. It was positioned within the company's broader family of small-capacity mopeds.
Motocross motorcycle · 1973
Gringo
Presented at EICMA in 1973, the Gringo was an attempt to move Itom into larger off-road motorcycles. It used a five-speed Zündapp 125 power unit.
Enduro motorcycle · 1973
Enduro
The Enduro was presented alongside the Gringo at the 1973 Milan motorcycle exhibition. It used a 125 cc Minarelli engine with a five-speed gearbox, but the larger Itom 125 models sold only in limited quantities.
Brand decisions
1973
End of in-house engine productionStrategyBackground
Itom faced the need to continue offering motorcycles while its own engine manufacturing was being discontinued.
Action taken
The company began equipping models with Moto Morini engines and presented larger off-road models using Zündapp and Minarelli power units.
Aftermath
The 125 cc expansion achieved limited commercial success, and production ended two years later.
1957
Relocation and corporate-name changeStrategyBackground
Itom moved its manufacturing operation from Turin to the former Fratelli Bosio plant in Sant'Ambrogio di Torino.
Action taken
The company adopted the name IMSA, Industria Meccanica Sant'Ambrogio, while continuing to market motorcycles under the Itom marque.
Aftermath
Sant'Ambrogio became the company's principal production site until manufacturing ended in 1975.
Sources1 sources
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