Extensive online history at the Classic 50 Racing Club website
49c.c. Two-Cycle Power Unit.
5-Speed Gearbox.
Magneto Ignition.
High-Level Exhaust System.
Duplex Frame. Leading-Link Front Forks or Telescopic.
S.A. Rear Suspension.
Slim Tank and Trials Saddle.
Stainless Steel Mudguards, Crankcase Guard.
Ball Ended Controls and Footrests.
Chrome Steel Rims and Full-width Alloy Brake Hubs.
Tyres: Front, 3.00 17 Trials Universal,
Rear, 3.25 16 Trails Universal,
Speed: 55 mph. Weight: 140 lbs.
(Lighting Kit available as an extra)
http://www.classic50racingclub.co.uk/the-heldun-marque.html