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FOURNALES OLEO-PNEUMATIC SHOCK ABSORBERThe Concorde airliner – still represents the State of the Art in many aspects of aeronautic design, and motorcycling is one of the beneficiaries.And even if the Concorde should eventually follow the Dodo into extinction, there have been major benefits left behind, among them a revolutionary air only shock absorber which has been available on the Australian market for almost 20 years.The product is the Fournales Oleo-Pneumatic shock absorber – a simplified and specially-adapted version of units originally designed to handle the enormous stresses generated within the landing-gear of the Anglo- French Concorde.The stringent technological standards and extremely fine tolerances demanded by advanced aeronautics are reflected in the design and construction of the Fournales shock absorbers.Fournales dispense with one of the main problem-areas of conventional shock absorbers — the mechanical spring component. The Fournales instead rely on air compression for their suspension qualities.Perhaps the most revolutionary aspect of the Fournales in practice is the virtual elimination of the dreaded ”bottoming” effect, a problem which always remains with the conventional spring-based unit.Simple and extremely robust in design, the Fournales has two connected chambers, one containing oil and the other air. Under load the oil is pushed through a connecting channel into the air chamber, compressing the air and progressively absorbing the shock.And with a stress limit of 9000 PSI, there’s NO likelihood of the motorcycle rider finding the limits of the Fournales, and hence NO possibility that the Fournales-based suspension will ”bottom out” under any conditions and regardless of the weight carried on the motorcycle.With all these advantages of strength and durability, the Fournales remains extremely light – as much as 60 percent lighter than conventional spring-type units.One of the features developed with the perspective of riding withmaximum comfort in mind is the incorporation of a small internal spring between the air and oil chambers. This spring fractionally lowers the internal air pressure of the Fournales at rest, ensuring that when even the tiniest of road shocks and ripples are encountered they will be soaked-up efficiently. This is in direct contrast to the spring-type shock absorber, which fails to react at all to shock below a certain pre-load level.The new Fournales units are virtually unbreakable, and such is the confidence of Fournales Australia in their product that a two-year conditional guarantee is being offered. This unlimited mileage guarantee covers parts AND labour. For the unconvinced, a four-week trial period is also available, with Fournales Australia guaranteeing to refund the purchaser’s money in full if he or she should not be entirely satisfied with the products level of comfort and handling performances.“CONCORDE” landing gear technology designed to make a great Harley-Davidson GREATER. 100% adjustable AIR shocks for SOFTAIL and all swinging arm Harley-Davidsons. Also available for most Japanese and European Cruisers and Tourers4 weeks trial period WITH MONEY BACK WARRANTY. Full 2 YEAR warranty. Ring-Fax Write for a FULL and FREE information kitFOURNALES AUSTRALIA P.O. Box 1925, GEELONG, VIC, 3220 Tel (03) 5278 1072 Fax (03) 5278 1072