Norton 16H

The Norton 16H is a designation given to British motorcycles made between 1911 through to 1954 with various modifications and refers to a single cylinder Norton 490cc side valve engine with a bore and stroke of 79 x 100 mm. The H denotes the Home model as distinct from the Colonial export model. Norton was the main military motorcycle supplier prior to WW2 and one of the main suppliers of motorcycles to the British Army in World War II with a total of nearly 100,000 produced. British Army Nortons were also supplied to the Commonwealth forces such as Australian, New Zealand, India and the Canadian Army.

Development

In 1911 James Lansdowne Norton entered a side valve 490cc single in the new 500cc Senior Class race of the Isle of Man TT. He was unplaced but the following year the motorcycle had been improved and won the Brooklands TT and set three world records.

A drive chain was developed to replace the belt drive and although production was delayed by the First World War the Model 16 as it became known gained a Sturmey Archer gearbox and had a racing heritage that included 21 world records.