BSA Bantam (D1,BD1:1948-63D3:1954-57D5:1958D7:1959-66D10(all):1967D14/4(all):1968-69D/B175(all):1969-71)

The BSA Bantam Series consists of various models including D1, BD1, D3, D5, D7, D10, D10 Sports, Bushman, D14/4, and D/B175. These models were produced between 1948 and 1971 and featured a four-stroke, single-cylinder, OHV, 2 valve engine. The engine capacities varied depending on the model, ranging from 125cc to 175cc. The Bantam series had a kick start ignition system and a chain final drive. The suspension and brakes on the models also varied depending on the year and version. The Bantam series came in a range of colours including Mist Green, Black, Maroon, Polychromatic Blue and Red. The top speed of the Bantam series ranged from 45mph to 65mph. Sources for this information include Wikipedia and Sump Publishing.

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Technical specifications:

Make Model: BSA Bantam Series: D1, BD1, D3, D5, D7, D10, D10 Sports, Bushman, D14/4, D/B175

Year: D1, BD1: 1948 – 63 D3: 1954 – 57 D5: 1958 D7: 1959 – 66 D10 (all): 1967 D14/4 (all): 1968 – 69 D/B 175 (all): 1969 – 71

Engine: Four stroke, single cylinder, OHV, 2 valve

Capacity: D1, BD1: 125 cc / 7.6 cub in. D3: 150 cc / 9.2 cub in. D5, D7, D10, Sport, Bushman, D14/4, D/B175: 175 cc / 10/7 cub in.

Cooling System: Air cooled

Exhaust: Single, stainless steel and chrome

Ignition: D1, BD1: Wico-Pacy or Lucas D3, D5: Wico-Pacy D7: Wipac D10 (all): Wipac with coil and 60W Alternator D14/4 (all), D/B175 (all): Wipac

Starting: Kick start

Max Power: D1, BD1: 3 kW / 4 hp D3: 4 kW / 5.3 hp D5, D7: 5.5 kW / 7.4 hp D10: 7 kW / 10 hp D10 Sports, Bushman: 7.5 kW / 10.2 hp D14/4 (all), D/B175 (all): 9.4 kW / 12.6 hp

Clutch: Multi-plate

Transmission: D1, BD1, D3, D5, D7, D10: 3-Speed D10 Sports & Bushman, D14/4 (all), D/B175 (all): 4-Speed

Final Drive: Chain

Front Suspension: Telescopic fork

Rear Suspension: D1, BD1 (1948-50): Rigid D1, BD1 (1950-63): Plunger D3: Plunger (swinging arm after 1956) D5, D7, D10 (all), D14/4 (all), D/B175 (all): Swinging arm

Front Brakes: D1, BD1, D3 (pre 1958), D5: 4.5 in., drum All other: 5 in., drum

Rear Brakes: D1, BD1, D3 (pre 1958), D5: 4.5 in., drum All other: 5 in., drum

Wheels: D1, BD1, D3 (pre 1958): 19 in. D1, BD1, D3 (post 1958) & all other modes: 18 in.

Top Speed: D1, BD1: 72 km/h / 45 mph D3: 80 km/h / 50 mph D5, D7, D10 (all): 92 km/h / 57 mph D14/4 (all), D/B175 (all): 105 km/h / 65 mph

Colours: D1: Mist green BD1: Black tank with chrome strips D3: Grey, Black, Maroon D5: Maroon or Black with Ivory tank panels D7: Red/chrome, Blue/chrome D10: Blue/silver, Polychromatic Blue/chrome D10 & D14/4 Sports: Red/chrome D10 & D14/4 & D/B175 Bushman: Orange/White D14/4: Black, Polychromatic Blue with two tone tank D/B175: Blue, Red, Black

Sources and Review: Wikipedia, Sump Publishing