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British Motorcycles

Pearson and Sopwith

Pearson and Sopwith were motorcycles produced fom 1920 to 1922, with the involvement of aircraft pioneer Tom Sopwith.
  • 1920 These conventional machines were reputely produced by the Monarch firm. The engines used were 318cc Dalm, 269cc Villiers two-stroke, or 293cc sv JAP.
  • 1921 A 499cc sv Blackburne model joined the range and transmission became all-chain with two or three-speed Sturmey-Archer gearboxes.
Sources: Grace's Guide



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Allen Motorcycle Museum
Allen Motorcycle Museum
Private museum in Boston, MA, with many highly collectable vintage motorcycles for sale.