British motorcycle manufacturers - Q

Last update April 23 2001

 Quadrant Started by Walter and William Lloyd in 1883 to manufacture bicycles and tricycles. Started making motorcycles (autocyclette) in 1901 and motorized banking tricycles in 1902. Walter patented a unique all-in-one control lever in 1902 to raise the exhaust valve, control ignition switch, operate the throttle and the ignition advance. Started using their own engine design in 1903. Used a spray carburetor in 1904 and magneto ignition in 1907.  Company collapsed from internal disputes in 1907, and Thomas Silver left to form Silver Motors, offering the Quadrant under a different name. The original company and premises were acquired by Walter Lloyd, but after legal action, Silver was back as Quadrant Motor Company Ltd. in 1909, selling new models. After an argument with his new backers, Silver was again making motorcycles under his own name, while Quadrant made them under a new name Quadrant Cycle Co. They re-united for 1911, making several models including a massive V-twin of 1129cc and a 600cc single. After the war they made a 654 and 780cc singles, experimented with a 292c scooter, as well as developing some outdated sv and ohv models. The company tried to modernize its lineup in 1927 with a 490cc ohv, but the company closed in 1928.
Quasar 1977-82 (77-85?). Designed by Malcolm Newell, this feet-forward motorcycle had a car-type roof and body, without doors. Used a 750cc, four-cylinder engine and four-speed gear box. Later version called a Phaser, used a six-cylinder Kawasaki engine.
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Compiled by Ian Chadwick. Send comments and corrections to me at: