Grace's Guide is the leading source of historical information on industry and manufacturing in Britain. This web publication contains 133,805 pages of information and 211,901 images on early companies, their products and the people who designed and built them.
Portland were motorcycles produced between 1910 and 1913 and again in 1920, and listed by dealers Maude's Motor Mart of Great Portland Street, London, and Halifax?.
1913 Still with belt drive, the machines now had 4hp JAP or 3.5hp and 4.25hp Precision engines.
1920 They continued to sell their own brand of machine, built by a trade supplier, using components such as 269cc Arden two-stroke engine, Amac carburettor, two-speed Albion gearbox and Saxon forks. These lightweight machines were typical of the period, but a down-turn in trade saw them slip from the market.