BSA Rocket 3
1968Sportbike

BSA Rocket 3

Key specifications

Engine
740 cc
Power
58 HP
Torque
61 Nm
Weight
206 kg
Fuel type
petrol
Fuel capacity
5.0 L
Transmission
4-speed
Front brakes
Expanding brake (drum brake)
Rear brakes
Expanding brake (drum brake)

Overview

### Discover the 1968 BSA Rocket 3: A British Icon of Performance The 1968 BSA Rocket 3, also known as the BSA A75 Rocket III, stands as a testament to the bold innovation of the British motorcycle industry during the late 1960s. Positioned as a sport motorcycle, the Rocket 3 was BSA's answer to the burgeoning demand for powerful and agile bikes that could dominate both the streets and the racetracks. With its striking ruby red and silver color scheme, this motorcycle not only turned heads but also delivered a thrilling riding experience that captured the spirit of the era. At the heart of the Rocket 3 lies a remarkable in-line three engine, boasting a displacement of 740 ccm (45.15 cubic inches). It produces an impressive 58 horsepower at 7,500 RPM, translating into a top speed of 185 km/h (115 mph). This powerhouse generates a torque of 61 Nm at 6,900 RPM, ensuring robust acceleration and a thrilling ride. The engine's 9.5:1 compression ratio and the reliable Amal carburetor fuel system work harmoniously to deliver a smooth, responsive throttle response. Coupled with a 4-speed gearbox and chain final drive, the Rocket 3 promises an exhilarating ride while maintaining a respectable fuel consumption of 6.72 litres per 100 km, making it a practical choice for spirited riders. The engineering brilliance of the Rocket 3 extends beyond its engine. Its double-loop cradle frame provides a solid foundation, while the telescopic front suspension and swingarm rear suspension with coil-over shocks ensure a comfortable yet dynamic ride. The classic drum brakes at both the front and rear deliver dependable stopping power, instilling confidence in every twist and turn. Weighing in at 206 kg (454.2 pounds) and with a generous fuel capacity of 19 liters, this motorcycle strikes an excellent balance between performance and practicality, catering to both everyday riders and weekend warriors alike. ####

Pros

    Cons

    • Powerful Engine: The in-line three engine provides a thrilling ride with robust acceleration and top speeds that satisfy any sport enthusiast.
    • Classic Design: The iconic styling and color options make the Rocket 3 a standout piece, perfect for collectors and riders who appreciate vintage aesthetics.
    • Comfortable Ride: With its advanced suspension system, the Rocket 3 offers a smooth and comfortable ride, even over longer distances.
    • Weight: At 206 kg, the Rocket 3 can feel cumbersome for new riders or in tight maneuvering situations.
    • Drum Brakes: While adequate for the time, the drum brakes may not provide the same level of performance as modern disc brakes, especially in emergency situations.
    • Fuel Consumption: While not excessively high, the fuel consumption may deter those seeking an ultra-efficient touring motorcycle.

    Technical details

    Source specification data

    Make
    BSA
    Model
    Rocket 3
    Category
    Sport
    Starter
    Kick
    Comments
    Also called BSA A75 Rocket III.
    Color Options
    Ruby red/silver
    Power
    58.00 HP (42.3 kW)) @ 7500 RPM
    Clutch
    Dry single plate
    Torque
    61.00 Nm (6.2 kgf-m or 45.0 ft.lbs) @ 6900 RPM
    Gearbox
    4-speed
    Ignition
    Twin coil
    Top Speed
    185.0 km/h (115.0 mph)
    Fuel System
    Carburettor. Amal
    Bore X Stroke
    67.0 x 70.0 mm (2.6 x 2.8 inches)
    Compression
    9.5:1
    Displacement
    740.00 ccm (45.15 cubic inches)
    Cooling System
    Air
    Engine Details
    In-line three, four-stroke
    Exhaust System
    3-into-2, stainless steel
    Fuel Consumption
    6.72 litres/100 km (14.9 km/l or 35.00 mpg)
    Greenhouse Gases
    O2
    g/km. (
    O2
    -
    Carbon
    dioxide emission)
    Zero To One Hundred
    5.500 seconds
    Lubrication System
    Dry sump
    Transmission Type Final Drive
    Chain
    Dry Weight
    206.0 kg (454.2 pounds)
    Oil Capacity
    2.80 litres (0.18 quarts)
    Fuel Capacity
    19.00 litres (5.02 gallons)
    Ground Clearance
    178 mm (7.0 inches)
    Power Weight Ratio
    0.2816 HP/kg
    Weight Incl Oil Gas Etc
    226.0 kg (498.2 pounds)
    Seat
    Dual seat
    Wheels
    Wirespoked
    Rear Tyre
    4.10-19
    Frame Type
    Double loop cradle
    Front Tyre
    4.10-19
    Rear Brakes
    Expanding brake (drum brake)
    Front Brakes
    Expanding brake (drum brake)
    Rear Suspension
    Swingarm with coil-over shocks
    Front Suspension
    Telescopic

    Available colors

    Ruby red/silver