Tic
Motor tics are movement-based tics affecting discrete muscle groups.
Singer Motors
Singer Cycle began motor vehicle production in 1901, purchasing the manufacturing rights to the Perks & Hooch Motor Wheel, a one-cylinder engine contained in a spoked aluminium wheel, known as a motorwheel. It was a four-stroke designed by former Beeston employees Edwin Perks and Frank Birch. A unique feature was that the engine, fuel tank, carburettor and low-tension magneto were all housed in a two-sided cast alloy spoked wheel. It was probably the first motor bicycle to be provided with magneto ignition. It was perhaps the only motorcycle engine of its era with reliable ignition.These were fitted to bicycles. The design was used by Singer & Co in the rear wheel and then the front wheel of a trike.