1954 Norton 497cc 'Dominator 88' Registration no. 550 BMW Frame no. J122 57883 Engine no. 61269 K122

year norton's dominator 500cc 497cc production norton featherbed frame engine jumped redesign well-proven titled roadster received known history k122 1951 duplex 1954 registration hopwood chassis twin singles slimline went existing marriage race-proven 57883 aboard vertical-twin bandwagon 1948 bert necessitated home racing newcomer feature lightweight updated alloy cylinder head full-width hubs welded rear sub-frame alternator electrics coil ignition decade's 1960 narrower countless magazine clocked 92mph 1957 needless handling purchased current vendor couple years stored started need recommissioning greater lesser extent consists expired introduced legendary four-speed export cycle roadholding little returning offered mot's j122 61269 model designed gearbox november initially improvements motor class sadly road documentation invoices required