There had been outright victories by lightweights in major events before, but it was the arrival of the Bultaco Sherpa in the mid-1960s that drove the final nail into the coffin of the heavyweight four-strokes in national and international trials. Bultaco's meteoric rise to supremacy would surely have taken much longer had the Spanish manufacturer not had the foresight to recruit the world's greatest trials rider, Sammy Miller, to spearhead development. Bultaco already possessed enormous experience of building competition two-strokes for road racing and moto-cross, and a 250cc single-cylinder 'stroker' was the natural choice for the new Sherpa trials model that made its debut at Earls Court in the autumn of 1964. By Christmas Miller had chalked up his first victory; the rest is history. Represents a wonderful opportunity for the classic off-road collector or 'twin-shock' trials competitor, this highly original Sherpa was in its current, restored condition when it was acquired for the Collection in Barcelona in December 2006.