Introduced in 1956, the unit construction Crusader was a departure from the traditional Royal Enfield layout of separate engine and gearbox, and was a compact unit which, coupled with the use of 17 inch wheels, helped to make a nippy, fine-handling machine, with a relatively low seat height and light weight. It was part of a general move by several manufacturers at the time to reinvigorate the previously neglected 250 sector of the market. XUN 307 was acquired by the deceased owner around 2005, and has not been used during the present ownership. Stored outside, albeit beneath a tarpaulin, it will require restoration, and is sold strictly as viewed. Documentation accompanying the Crusader comprises a current V5C.