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1968 BSA BANTAM 175
2 STROKE CLASSIC
DOSNT NEED MOT OR TAX
MUST BE SEEN
ORIGINAL TAX BOOK
For the 1968 model year the D14/4 was introduced, similar to the D10 but with greater power again and the 4 speed gearbox fitted across the range. The Sports and Bushman models also gained heavier front forks.
Power: 4.5 bhp (3.4 kW) (D1); 5.3 bhp (4.0 kW) …
Transmission: Three speed gearbox (D1-D10) …
Engine: 2-stroke 125 cc (D1); 150 cc (D3); 175 …
Fuel capacity: 1.75 imp gal (8.0 l; 2.10 US gal) …
BSA was far from finished with altering the Bantam, and introduced the D14 range. Production began late in 1967, and early engine prefixes were listed as D13, though this was never a model. BSA dropped the Silver leaving the other three models to attract the market. The Supreme was now also fitted with the 4-speed box, ending the Bantam’s relationship with 3 speeds. The old exhaust pipe bore was found too restrictive for the new tune up, so a larger one was fitted. On the ever diminishing market for British motorcycles, BSA sought to make the Bantam yet more powerful. They increased the compression ratio to 10:1, resulting in a power increase to 13 h.p. The bike would now shift along at the best part of 70 m.p.h, the market had changed from wanting the fuel-efficient three speed D1, to the speedy D14/4. Asides from the diminished fuel efficiency, the high compression ratio made the bike notorious for difficult starting, as is normal with high performance engines. The Supreme and Sports models changed the style of air filter, but the Bushman kept the pretty D10 pancake type. The D14 was another one year only model, the D13 prefixed engines and frames are therefore probably rarer than the D5s.