Velocette MSS: history, specs, pictures

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Velocette MSS
Production 1935
Class Classic
Single cylinder, 4-stroke, Air-cooled
Bore / Stroke 86.4mm x 86.4mm
Compression ratio 6.75:1
Horsepower 26.95 HP (20.1 KW) @ 5000RPM
Fuel System Carburetor
Transmission Gear box: 4-Speed
Final Drive: Chain
Suspension Front: Telescopic fork with 2-way hydraulic damping
Rear: Woodhead-Monroe springs with hydraulic damping, later Armstrong and Girling, adjustable
Brakes Front: Drum
Rear: Drum
Front Tire 3.25 x 19"
Rear Tire 3.25 x 19"
Wheelbase 53.7 inches (1364 mm)
Length 83.9 inches (2131 mm)
Width 27.6 inches (701 mm)
Seat Height 30.51 inches (775 mm)
Weight 185.0 kg (wet)
Manuals Service Manual

The Velocette MSS was a Single cylinder, 4-stroke, Air-cooled Classic motorcycle produced by Velocette in 1935. Claimed horsepower was 26.95 HP (20.1 KW) @ 5000 RPM.


A 86.4mm bore x 86.4mm stroke result in a displacement of just 499.0 cubic centimeters.


The bike has a 4-Speed transmission.


It came with a 3.25 x 19" front tire and a 3.25 x 19" rear tire. Stopping was achieved via Drum in the front and a Drum in the rear. The front suspension was a Telescopic fork with 2-way hydraulic damping while the rear was equipped with a Woodhead-Monroe springs with hydraulic damping, later Armstrong and Girling, adjustable. The wheelbase was 53.7 inches (1364 mm) long.

1935 - 1968 Velocette MSS[edit]

1935 - 1968 Velocette MSS 1935 - 1968 Velocette MSS

The Velocette MSS is a motorcycle made by Velocette. It was fast, reliable and economical but could not compete against a new range of British twin-cylinder motorcycles. Production ended in 1968.

It was launched in 1935 as a 500cc sports version. World War II halted production which did not resume until 1954. The new MSS was a much more modern machine with the same frame as the Velocette MAC and was fitted with sidecar lugs and had optional panniers to appeal to the touring market. Buyers started tuning the MSS for speed, however, and the factory responded by producing the sports Velocette Venom model. In 1955 a scrambles version was also produced.