The Jubilee 250 twin was introduced in 1958 to coincide with Norton's Diamond Jubilee. Designer Bert Hopwood's original conception had called for integral cylinder barrels and 'heads but convention won the day and separate components were used in the production version. Built in unit with the four-speed gearbox, the Jubilee engine was very 'over-square' by the standards of the day (bore/stroke measurements were 60x44mm) and could be buzzed to 8,500rpm, a quite exceptional figure for a British motorcycle. This modern-looking power unit was installed in a Francis-Barnett derived frame, with fabricated 'down-tube', while the Jubilee's distinctive rear enclosure panels reflected the fashion of the day. In late 1960 the model was improved, gaining separately adjustable ignition contact points and a 7" headlamp; two versions were now available: De Luxe (with enclosure) and Standard (minus bodywork and with less voluminous mudguards. An older restoration, this example is described by the vendor as in generally good condition - starting and running correctly - and is offered with sundry invoices, old-style logbook and Swansea V5.
The Jubilee 250 twin was introduced in 1958 to coincide with Norton's Diamond Jubilee. Designer Bert Hopwood's original conception had called for integral cylinder barrels and 'heads but convention won the day and separate components were used in the production version. Built in unit with the four-speed gearbox, the Jubilee engine was very 'over-square' by the standards of the day (bore/stroke measurements were 60x44mm) and could be buzzed to 8,500rpm, a quite exceptional figure for a British motorcycle. This modern-looking power unit was installed in a Francis-Barnett derived frame, with fabricated 'down-tube', while the Jubilee's distinctive rear enclosure panels reflected the fashion of the day. In late 1960 the model was improved, gaining separately adjustable ignition contact points and a 7" headlamp; two versions were now available: De Luxe (with enclosure) and Standard (minus bodywork and with less voluminous mudguards. An older restoration, this example is described by the vendor as in generally good condition - starting and running correctly - and is offered with sundry invoices, old-style logbook and Swansea V5.
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.jpg "Source: Christie's")
.jpg "Source: Christie's")
