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HARD Coil Spring Bottom out HereSOFT Coil Spring Bottom out HereLine 1 - Line 2 - Line 3 - Line 4 -SOFT CONVENTIONAL COIL SPRING STIFFER CONVENTIONAL COIL SPRING NORMAL AIR-COMPRESSION GRAPH FOURNALES OLEO-PNEUMATIC SHOCK ABSORBERFOURNALES - ALL THE ADVANTAGES, NO COMPROMISE IN PERFORMANCEThe graph above illustrates the superior performance of the Fournales when compared with a soft or hard conventional coil spring shock absorber.Air Spring starts here; note that for the first half of the shock absorber stroke, the Fournales Air Spring is softer than the softest mechanical spring giving superb comfort on good smooth surfaces, but yet has a much better bottoming out resistance than even a stiff mechanical spring.Internal spring to insure maximum comfort particularly on small corrugations, gravel and dirt roads.FOURNALES air shock absorbers have virtually NO pre-load at all insuring superb comfort for long distance travel especially on poor tared roads, gravel & dirt roads.Line 1 on the graph represents the performance of a relatively soft spring shock absorber, which is designed to provide a ride based on comfort. This results in small road shocks being registered and absorbed, but brings with it some loss of performance at the other end of the scale, where the unit’s basic softness leads to an early ”bottoming- out” of the suspension.Line 2 represents a stiffer version of the same spring-type unit with pre-load adjuster wound up. This provides stronger resistance to heavier impact and delays the onset of ”bottoming” but there is a loss of performance at the lower end of the scale, where the stiffer spring is incapable of registering smaller road shocks. It should be noted on the graph that despite the stiffer nature of the spring represented by Line 2,resistance to heavier impacts still considerably less than that of the air-based unit on line 4. By winding up pre-load adjuster a fair bit of available travel is lost; with Fournales FULL TRAVEL is always available.Line 3 represents other air-suspension systems, which have the advantage over types 1 and 2 of providing increasingly stiff resistance to shock as the degree of impact becomes larger. However this unit Line 3 loses at the lower end of the scale, providing less absorption of small impacts than either types 1 or 2 with a high pre-load.Line 4 the Fournales – combines the upper- level benefits of the conventional air-shock with NONE of its lower-level penalties. Because of its special internal adjustingspring, the Fournales operates in two distinct stages. With the adjusting spring lowering the unit’s internal pressure, the Fournales absorbs the tiniest of road shocks more effectively than a conventional spring shocker on even the softest pre-load setting. At the same time the Fournales has the ability to absorb the harshest of impacts at the other end of the scale. The self-adjusting nature of the Fournales is unique to this unit which has virtually no pre-load for increased sensitivity and improved motricity, handling and comfort. The benefits of this feature are especially felt when riding on country roads and on gravel and dirt roads, where motricity and traction are vastly improved eliminating “fishtailing”. Allowing a much faster, yet safer ride in these conditions.Fournales oleo-pneumatic shocks are designed to be used on real Australian roads, not the fantasy world of racing tracks. They work best in the bush, two up with luggage for riders who travel long and hard.Despite being softer than both coil springs for 1st half of stroke, Fournales does not bottom out.TRAVEL STROKEBOTTOMING OUT