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1979 BULTACO Frontera Mk11 B 370
Chassis No. HB21504395A
Engine No. HM-21504395-A
Fees include commission and taxes.
Chassis No. HB21504395A
Engine No. HM-21504395-A
No registration certificate
No MOT
The 1979 Bultaco Frontera MK11 B 370 is one of the last great creations from a manufacturer that left an indelible mark on the history of Spanish motorcycling.
Founded in 1958 by Francisco Bultó, known as "Paco", following his high-profile split with Montesa, Bultaco established itself within two decades as one of the most respected brands in global off-road motorcycling. Whether in trials, enduro or speed racing, the Sant Adrià de Besòs-based firm excelled on all terrains, driven by a deeply ingrained culture of competition.
The Frontera is Bultaco’s flagship enduro model. In its MK11 B 370 version, it reached a remarkable level of technical maturity: a 370cc single-cylinder two-stroke engine, a chassis refined through years of development in competition, and suspension systems engineered to handle the most demanding terrain. A serious machine, built by serious people, for riders who were just as serious.
1979 was, however, a significant year for Bultaco. The brand was then facing serious industrial difficulties that would lead to its permanent closure in 1983. A model from this year is therefore one of the last remaining examples of a production line that was running on fumes but never gave up, which gives it a special historical value. This particular model is the 11B M215A “white version”.
Rare, authentic, and steeped in a history that goes far beyond the realm of mere mechanics.
For any enquiries or to receive a condition report, please contact us on 06.52.56.31.11 or write to the following address: motos@aguttes.com
Please note that this lot must be collected after the sale in Barcelona (Spain); collection must take place between 5 and 10 May 2026
Aguttes can assist you with the transport and delivery of your motorcycles; personalised quotes can be provided, so please do not hesitate to contact us regarding this.
No registration
certificate, no MOT
The 1979 Bultaco Frontera MK11 B 370 is one of the last great creations from a brand that has left an indelible mark on the history of Spanish motorcycling.
Founded in 1958 by Francisco Bultó, known as ‘Paco’, following his high-profile split from Montesa, Bultaco established itself within two decades as one of the most respected brands in the off-road world. Trial, enduro, speed: the Sant Adrià de Besòs-based firm excelled on all terrains, driven by a culture of competition deeply rooted in its very essence.
The Frontera is Bultaco’s flagship enduro model. In its MK11 B 370 version, it achieves a remarkable level of technical maturity: a 370 cm³ single-cylinder two-stroke engine, a chassis perfected after years of development in competition, and suspension designed to withstand the most demanding terrain. A serious machine, built by serious people, for riders who were equally serious.
However, 1979 was a year of great significance for Bultaco. The brand was then facing serious industrial difficulties that would lead to its definitive closure in 1983. A model from this year is, therefore, one of the last witnesses to a production line stretched to its limits, yet one that never gave up, which gives it special historical value. This model is the 11B M215A ‘white version’.
Rare, authentic and bearing a history that goes far beyond the mere realm of mechanics.
For any enquiries or to receive a condition report, please contact us on 06.52.56.31.11 or write to the following address: motos@aguttes.com