1928 OHC Sports G.1.

 1928 OHC sports G1

Appearance As picture 



Engine - 4.98 h.p. 4-stroke over head camshaft, 84mm. x 90mm. bore and stroke, having a capacity of 498c.c., camshaft totally enclosed and automatically lubricated throughout on dry sump principle, oil circulated by double plunger pump of large capacity to all parts of the engine.

Lubrication - Sight feed mechanical mechanical pump on engine shaft, the oil being pressure feed direct to big end.

Carburettor - AMAC T.T Type.

Tank - 2¼ gallons petrol only, fitted with large quick release filler, enamelled lustre black and lined panel gold, separate oil tank on saddle tube, 1 gallon capacity with auxiliary hand pump incorporated.

Ignition - B.T.H Variable Magneto.

Gearbox - Burman 3-speed, 4-plate clutch and kick starter. Heavy roller chain back and front with shock absorbers on engine shaft and gearbox, Gear ratio close or open at option.

Wheels and Tyres - 26 x 3¼in. W.O., with North British Sports Cord Tyres.

Frame - Weldless steel tubing, heavy type spring girder (round tube) forks.

Brakes - 7in. diameter large internal expanding hub front and rear.

Standard Fittings - Leckie patent spring seat, strong steel mudguards with stays, welded steel pannier bag, knee gribs fitted to tank, large plated exhust pipe and silencer.



With or without lighting set (side car lighting extra)

Available with choice of 2 side cars fitted (click links below to view):

Sports Aluminum Side Car, painted, frosted or fabric covered.

Super Sports Frosted Aluminium Octagonal Side Car, fitted with screen, rear locker and apron.


Additional Information  - (Available to members in downloads section)

  • 1928 Sales Brochure.
  • Advertisements as published in 1928.
  • The Motor Cycle, 1927 - Road Test of the 350cc Popular Model.
  • The Motor Cycle, June 28th, 1927 - Twin-Port Announcement.


  • 1928 Sales Brochure.