The Aster 21/60 was a car produced by Aster between 1926 and 1927. Approximately 30 cars were made.

The cars had a 6 cylinder 3049cc engine with overhead camshafts. The cars featured a twin plate clutch and a four-speed gearbox. The top speed of this car is 85mph (137kmh).

The suspension comprised of semi-elliptical springs in the front and quarter-elliptical springs in the rear. All four wheels had brakes.

The chassis was sold for £595 and was designed so that the customer could take it to a coachbuilder to fit a custom built body.