Hurricane X75 TheTriumph Hurricane was developed in the summer of 1969 by Craig Vetter, the American motorcycle designer, whoactually unveiled the prototype with "BSA" on the tank as the new Rocket Three'. The X-75 had a three US gallon petrol tank under the glass fiber bodywork and cost 895 new in the UK. It proved to be a very iconic and distinctive design thanks to the bodywork design and the three silencers down one side of the bike. BSA was facing bankruptcy, however, so the design went into a limited production run of 1200 as the Triumph X-75 Hurricane in 1972.