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BSA M22

Make Model	BSA M22
Year	1937
Engine	Four stoke, single cylinder, OHV
Capacity	496 cc / 30.3 cub in.
Bore x Stroke	81 x 94 mm
Cooling System	Air cooled
Lubrication	Dry sump
Oil Capacity	3.4 L / 7.2 US pints
Carburetor	Amal
Exhaust	Single, steel, chrome
Ignition	Magdyno
Battery	6V, RU7E
Starting	Kick start
Max Power	16 kW / 22 hp
Clutch	Multi-plate, dry
Transmission	4-Speed, constant mesh
Final Drive	Chain
Gear Ratios	Solo: 1st 14.2 / 2nd 9.9 / 3rd 6.3 / 4th 4.8:1 Sidecar model: 1st 16.6 / 2nd 11.5 / 3rd 7.3 4th 5.6:1
Frame	Triangulated cradle type with integral sidecar lugs
Front Suspension	Shock absorber with finger adjustment and steering damper
Rear Suspension	None, spring loaded saddle
Front Brakes	Drum, 7 in.
Rear Brakes	Drum, 7 in.
Front Tyre	3.25 x 19 in., Dunlop Universal
Rear Tyre	3.25 x 19 in., Dunlop Universal
Wheelbase	1372 mm . 54 in
Ground Clearance	120 mm / 4.7 in.
Saddle Height	724 mm / 28.5 in
Fuel Capacity	13.6 L / 3.6 US gal