The BSA B50 SS was a air-cooled, four-stroke, single cylinder, OHV Sport Bike motorcycle produced by BSA in 1971. Max torque was 28.03 ft/lbs (38.0 Nm) @ 5000 RPM. Claimed horsepower was 34.06 HP (25.4 KW) @ 6200 RPM.
| Manufacturer | BSA |
|---|---|
| Production | 1971 |
| Class | Sport Bike |
| Engine | air-cooled, four-stroke, single cylinder, OHV |
| Bore / Stroke | 83.8mm x 83.8mm |
| Compression ratio | 10.0:1 |
| Horse Power | 34.06 HP (25.4 KW) @ 6200RPM |
| Torque | 28.03 ft/lbs (38.0 Nm) @ 5000RPM |
| Transmission | Gear box: 4-speed, manual Final Drive: chain |
| Suspension | Front: telescopic fork Rear: dual shocks |
| Brakes | Front: drum Rear: drum |
| Front Tire | 3.25 x 18 |
| Rear Tire | 3.5 x 18 |
| Wheelbase | 54.02 inches (1372 mm) |
| Dimensions | L 85.0 inches (2159 mm) W 29.02 inches (737 mm) |
| Seat height | 32.01 inches (813 mm) |
| Weight | (dry), 140.0 kg (wet) |
| Manuals | Service Manual |
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Engine
A 83.8mm bore x 83.8mm stroke result in a displacement of just 499.0 cubic centimeters.
Drive
The bike has a 4-speed, manual transmission. Power was moderated via the wet multi-disc, manual.
Chassis
It came with a 3.25 x 18 front tire and a 3.5 x 18 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 dual shocks. The wheelbase was 54.02 inches (1372 mm) long.
1971 - 1973 BSA B50 SS
The SS version of the B50 from BSA is addressed for those riders who want more performance from their machine. It comes with features such as laced wheels, a dual seat, pillion grab rails, front and rear blinkers, a telescopic front fork, dual shocks in the rear, drum brakes, wide handlebars, analogue instrumentation dials and a red and black paint scheme.
In the engine department it comes equipped with a four-stroke, air-cooled, 499cc, single cylinder powerhouse paired to a four-speed manual transmission that can reach a maximum power output of 34 horsepower and 38 Nm of torque.