Background
Norton jumped aboard the vertical-twin bandwagon in 1948 when it introduced the Model 7.
Designed by the legendary Bert Hopwood, the new 500cc engine went into the existing ES2 plunger-frame/tele-fork cycle parts, a marriage that necessitated a redesign of Norton's well-proven four-speed gearbox.
In November 1951 Norton's 500cc twin found a new home in the 'Featherbed' duplex frame.
Initially for export only, the newcomer - named 'Dominator 88' - was the first production Norton roadster to feature the lightweight, race-proven chassis.
Updated year by year, by the decade's end the Dominator had received an alloy cylinder head, full-width hubs, welded rear sub-frame, alternator electrics, coil ignition and - for 1960 - the narrower 'slimline' Featherbed frame among countless other improvements.
In 1956 the ‘Dominator 99’ entered production, with a larger 597cc engine developed to keep pace with quicker bikes from Triumph and BSA, and to satisfy the US market’s need for speed.








