The Dennis Lance was a chassis used for double-decker buses made by the British commercial vehicle manufacturer Dennis. The name was used again in the 1980s for a single deck bus.
The Lance was first manufactured in 1930, in 1931 the Lance II (also known as the Lance 2) was introduced. The bus was developed from the Dennis H. Over the long period of manufacture, development of different variants were produced with different engines and bodies from different manufacturers.
The Lance II received a 5LW Gardner five-cylinder diesel engine with a 7.0 litre displacement.
After the end of the Second World War, the K series buses appeared. The series was fitted with the 6LW Gardner six-cylinder diesel engine with a 8.4 litre displacement. The Lance K3 received the newly developed diesel engine from O6-Dennis. The engine delivered 100bhp with a displacement of 8.0 litre, it had a four-valve cylinder head. The K4 was given the Gardner 5LW engine. A manual transmission with a five-speed gearbox and overdrive was fitted. The design of the cooler differed between the K2/K3 and K4 also.
The bodies were made by Weymann Motor Bodies, East Lancashire Coachbuilders (East Lancs), Duple Coachbuilders and Strachan. They fit the typical image of British double-decker buses of the 1930s to 1950s. The design of the cab allowed good visibility for the driver and easy access to the engine. Depending on the manufacturer and version, they had a capacity of about 45 to 56 seats.