Footrest pillion rubbers, oval shape, round 7/16in hole (pair). Used on Norton swing arm 1953-56?, Norton Featherbed 1960, Norton 1963 -?, Ariel , Triumph, AMC. Oval shaped, flat top, with round hole. Same shape as Britax rubbers , no branding. Same as EM160A without the Triumph logo. 110mm long, 12mm diameter hole, 35mm across flatter diameter.
Norton H12/584
