Bultaco Sherpa T motorcycles were mainly powered by single-cylinder, air cooled, two-stroke engines, but they also made water cooled powerplants. The rider was required to mix the oil and gasoline manually. Built in Barcelona, Spain, Bultaco motorcycles were exported throughout the world. Their largest market ultimately became the USA, allowing aspiring racers to purchase legitimately competitive motorcycles without modification. The Bultaco engine & transmission were universally interchangeable between models and engine capacities. One could replace the cylinder from a 175 cc engine with a 200 cc, 250 cc, 350 cc or even 360 cc capacity Bultaco cylinder. As Bultaco produced the cylinders, pistons, rings & cylinder heads for all engine capacities, no aftermarket parts were required, as with other brands.

Due to industrial unrest and market pressures, Bultaco production closed in 1979. The factory reopened in 1980, but closed again in 1983. A new series of electric Bultacos was announced mid-2014, and it began sales in 2015.