BSA B 25 Star
The 1970 BSA B 25 Star is a stylish and Classic motorcycle with Air cooled, 247cc, Single, OHV and 25.83 HP (19 kW) @ 7250 rpm.
Technical Specifications
Engine and transmission
- Engine type:1 cylinders, 4-stroke, Single
- Displacement:247 cc (15.09 cubic inches)
- Bore × stroke:2.64 inch × 2.76 inch (square)
- Cooling system:Air cooled
- Power:25.83 HP (19 kW) @ 7250 rpm
- Throttle:Cable operated
- Valve train:OHV, variable
- Valves per cylinder:2
- Sparks per cylinder:1
- Fuel supply system:Carburetor
- Ignition type:mechanically timed
- Compression:9.5:1
- Engine mounting:Transverse
- Lubrication system:Wet sump
- Gear box:Manual 4-speed
- Clutch:Wet, multiple discs, cable operated
- Final drive:Chain
- Spark plug pipe type:NGK
- Motor oil:Mineral, 10W/40
- Starter:Kick-starter
Dimensions
- Curb weight:297.6 lbs
- Dry weight:262.3 lbs
Chassis and suspension
- FrontSuspension:CartridgeBrake:Single DrumTire:83 / 100 R18Tire pressure:0.12 PSI
- RearSuspension:twin shock, SwingarmBrake:DrumTire:89 / 100 R18Tire pressure:0.14 PSI
- Frame type:iron, Single cradle frame
Other
- ABS available:No
- Power-to-weight ratio:0.14 KW/lbs (7.11 lbs/HP)
- Acceleration (0-60 mph):7.8 sec
- Top speed:83.88 mph
- Fuel capacity:3.7 gals
- Number of riders:2 persons
