1925 3 ½ h.p. JAP - 3-Speed

1925 3.5 3speed

Appearance As picture 



Engine - 3 ½ h.p. JAP 4-stroke, 70mm. x 90mm. bore and stroke, having a capacity of 350 c.c., roller big end and ball bearing main shaft.

Lubrication - Mechanical oil pump on engine shaft, through adjustable sight feed on tank.

Carburettor - B. & B..

Tank - 1¾ gallons petrol, 1½ quarts oil, enamelled black, gold lined.

Ignition - C.A.V. Magneto, variable.

Gearbox - Burman 3-speed, 3-plate clutch and kick starter. All chain drive transmission with shock absorber in clutch.

Wheels and Tyres - 26 x 2½ in. , with Dunlop Cord studded tyres.

Frame - Weldless steel tubing, patent girder spring forks.

Brakes - Internal expanding hub front and rear.

Standard Fittings - Large pan seat, inverted levers, tools, mudguards, stand and carrier.




Additional Information  - (Available to members in downloads section)

  • 1925 Sales Brochure.
  • Advertisements as published in 1928.
  • The Motor Cycle - Care and Maintenance article - 350cc OHV.
  • Oil pump patent documenatation as used on some 1925 models.



  • 1925 Sales Brochure.