BSA A75 Rocket III (1968-75)

Make Model: BSA/Triumph Rocket III


Year: 1968 – 75
Production: 27 480 units
Engine: Four stroke, transverse, inline triple, OHV, 2 valve per cylinder
Capacity: 740cc / 45.2 cub in.
Bore x Stroke: 67 x 70mm
Carburetor: 3 x Amal 26 mm concentric
Cooling System: Air cooled
Compression Ratio: 9.5:1
Lubrication: Dry sump
Oil Capacity: 2.8 L / 6 US pints
Exhaust: 3-into-2, stainless steel
Ignition: Twin coil
Spark Plug: Champion N4
Battery: 12V
Starting: Kick start
Max Power: 44 kW / 60 hp @ 7250 rpm
Max Torque: 61 Nm / 6.2 kgf-m / 45 ft/lb @ 6900 rpm
Clutch: Dry single plate
Transmission: 4 Speed
Final Drive: Chain
Frame: Double loop cradle frame

Front Suspension: Telescopic forks with coil spring – hydraulically damped
Rear Suspension: Coil spring/hydraulically damped
Front Brakes: Prior 1971: Drum 1972 – 75: Disc
Rear Brakes: Prior 1975: Drum 1975: Disc
Wheels: Steel, wire spokes
Front Tyre: 4.10 x 19 in., K81
Rear Tyre: 4.10 x 19 in., K81
Wheelbase: 1430 mm / 56.3in.
Ground Clearance: 178 mm / 7.0 in.
Dry Weight: 206 kg / 455 lbs
Wet Weight: 226 kg / 498 lbs
Fuel Capacity: 19 L / 5.0 US gal
Top Speed: 185 km/h / 115 mph
Acceleration: 0 – 100 km/h 0 – 60 mph: 5.5 sec 5.2 sec
Colours: Ruby red/silver


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