These are the known mechanical and performance specifications for your 1969 BSA Rocket 3.
Basic Specs
Engine
Displacement740.00 ccm (45.15 cubic inches)
Type
DetailsIn-line three, four-stroke
Max RPM
Compression9.5:1
Bore/Stroke67.0 x 70.0 mm (2.6 x 2.8 inches)
Valves/Cylinder
FuelingCarburettor. Amal
IgnitionTwin coil
Exhaust3-into-2, stainless steel
LubricationDry sump
CoolingAir
Performance
Horespower58.00 HP (42.3 kW)
Torque61.00 Nm (6.2 kgf-m or 45.0 ft.lbs)
Top Speed185.0 km/h (115.0 mph)
Fuel Economy & Polution
Fuel Consumption6.72 litres/100 km (14.9 km/l or 35.00 mpg)
Fuel Capacity19.00 litres (5.02 gallons)
Emissions155.9 CO2 g/km. (CO2 - Carbon dioxide emission)
Chassis
Frame TypeDouble loop cradle
Rake
Trail
Front SuspensionTelescopic
Front Travel
Rear SuspensionSwingarm with coil-over shocks
Rear Travel
SeatDual seat
Seat Height
Alt. Seat Height
Total Height
Total Length
Total Width
Ground Clearance178 mm (7.0 inches)
Wheelbase1,430 mm (56.3 inches)
Dry Weight206.0 kg (454.2 pounds)
Wet Weight226.0 kg (498.2 pounds)
Wheels & Brakes
Front Tire/Tyre4.10-19
Rear Tire/Tyre4.10-19
Front BrakesExpanding brake (drum brake)
Front Brake Diameter
Rear BrakesExpanding brake (drum brake)
Rear Brake Diameter
WheelsWirespoked
Comments
Also called BSA A75 Rocket III.