Chater-Lea was a British bicycle, car and motor cycle maker with a nine-storey factory in Banner Street in the City of London and, from 1928, premises at Letchworth, Hertfordshire. It was founded by William Chater-Lea in 1900 to make bicycle components. It made cars between 1907 and 1922 and motorcycles from 1903 to 1935. William died in 1927 and the business was taken over by his sons John and Bernard. After vehicle production finished, the company remained trading as a component maker until 1987.