BSA C15 SS: history, specs, pictures

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Production 1958
Class Classic
air-cooled, four-stroke, single cylinder, SOHV
Bore / Stroke 66.0mm x 66.0mm
Compression ratio 8.75:1
Horsepower 15.02 HP (11.2 KW) @ 5000RPM
Fuel System Amal carburetor
Transmission Gear box: 4-speed, manual

Final Drive: chain

Clutch: four friction plates
Suspension Front: telescopic fork
Rear: plunger shocks
Brakes Front: drum
Rear: drum
Front Tire 3.25 x 17
Rear Tire 3.25 x 17
Wheelbase 51.5 inches (1308 mm)
Length 77.99 inches (1981 mm)
Width 27.01 inches (686 mm)
Seat Height 30.0 inches (762 mm)
Weight 127.0 kg (wet)
Manuals Service Manual

The BSA C15 SS was a air-cooled, four-stroke, single cylinder, SOHV Classic motorcycle produced by BSA in 1958. Claimed horsepower was 15.02 HP (11.2 KW) @ 5000 RPM.


A 66.0mm bore x 66.0mm stroke result in a displacement of just 249.0 cubic centimeters.


The bike has a 4-speed, manual transmission. Power was moderated via the four friction plates.


It came with a 3.25 x 17 front tire and a 3.25 x 17 rear tire. Stopping was achieved via drum in the front and a drum in the rear. The front suspension was a telescopic fork while the rear was equipped with a plunger shocks. The wheelbase was 51.5 inches (1308 mm) long.

1958 - 1967 BSA C15 SS[edit]

The BSA C15 SS was created for novice riders that still want more performance from their machine. It has at its heart a four-stroke, air-cooled, 249cc, single cylinder powerhouse mated to a four-speed manual transmission and can produce a claimed 15 horsepower at 5000 rpm.

Also, it comes with features such as laced wheels with a white-wall tire mounted on the front one, a dual seat, plunger shocks as a rear suspension, a telescopic front fork, a side-stand, a round headlight, wide handlebars, a rear taillight and a drum braking system.