BSA B50 MX (1971-1973) Specs, Performance & Photos
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Segment: Enduro/Offroad
Production years: 1971, 1972, 1973
The 1971 BSA B50 MX sports an air-cooled, four-stroke, 499cc, single cylinder powerplant mated to a four-speed manual transmission and can produce a claimed 34 horsepower and 38 Nm of torque. This off-road machine was one of the most successful moto-cross machines designed by BSA, and had standard fittings such as a single seat, a small fuel tank, wide handlebars, a telescopic front fork coupled to dual shocks as a rear suspension, laced wheels with knobby tires mounted on them, a black steel frame and drum brakes in the front and in the rear.
BSA B50 MX 1971-1973
BSA B50 MX 499
| engine specs | Type: | air-cooled, four-stroke, single cylinder, OHV | Displacement: | 499 cm3 | Bore X Stroke: | 3.3x3.5 in OR 84 mm | Compression Ratio: | 10.0:1 | Horsepower: | 34/6200 KW(hp)/RPM | Torque: | 28/5000 lb-ft/RPM OR 38/5000 Nm/RPM | Fuel System: | Amal carburetor |
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| transmission specs | Gearbox: | 4-speed, manual | Clutch: | wet multi-disc, manual | Primary Drive: | - | Final Drive: | chain |
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| chassis specs | Frame: | steel | Front Suspension: | telescopic fork | Rear Suspension: | dual shocks | Front Brake: | drum | Rear Brake: | drum |
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| dimension specs | Overall Length: | 85 in OR 2159 mm | Overall Width: | 29 in OR 737 mm | Seat Height: | 32 in OR 813 mm | Wheelbase: | 54 in OR 1372 mm | Ground Clearance: | 7 in OR 178 mm | Weight: | 309 lbs OR 140 kg | Fuel Capacity: | 2.4 gallons OR 9.1 L |
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| tyres specs | Front: | 3.25 x 18 | Rear: | 3.5 x 18 |
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