BSA B31 SPECIFICATIONS, PRICE & IMAGES

Bike Features

Make Model:

BSA B31

Year:
1945 – 59

Engine:
Four stroke, single cylinder, Overhead valve

Capacity:
348 cc / 21.2
cub in.

Bore and Stroke:
71 x 88 mm

Compression Ratio:
6.5:1

Cooling System:
Air cooled

Lubrication:
Dry sump

Exhaust:
Single,
stainless steel and chrome

Carburetor:
Single Amal
type 76

Ignition :
Lucas magneto
MO1L

Starting:
Kick start

Clutch:
Multi-plate

Maximum Power:
16.2 kW / 22
hp @ 6000 rpm

Transmission  :
4-Speed
manual

Final Drive:
Chain

Front Wheel:
WM2 x 19 in.

Rear Wheel:
WM2 x 19 in.

Front Tyre:
3.25 x 19 in.
Dunlop Gold Seal

Rear Tyre:
3.5 x 19 in.
Dunlop Gold Seal

Front Suspension:
Hydraulic fork

Rear Suspension:
Swinging arm
fork with shocks

Front Brake:
8 in., drum

Rear Brake:
7 in., drum

Wet Weight:
175 kg / 385
lbs

Fuel Capacity:
19 L / 5 US
gal

Top Speed:
110 km/h / 70
mph