THE FRONTAGE SHOCK ABSORBER

The Motorcycle suspension system is the equipments connect to motorcycle chassis with peripheral of wheel. Its function is to weaken and stabilize vibration that happened during the mechanical system make a move. Surface of surging road and scraggly generate vibration accepted by the tire. Here in after, the tire fluctuate movement continued go to the suspension system. The activity of suspension which this determine stability and comfort in riding motorcycle.

In general suspension system at motorcycle differentiated become two kinds of, that is frontage suspension system and behind suspension system.

¨ The frontage suspension

The frontage suspension system at motorcycle consist of two type, that is type bottom link and type telescopic.

a) Bottom Link Suspension consist of the front fork, front shock absorber, tire and also rim. Bottom link suspension consist of two version, that is leading arm and trailing arm. The division according to situation suspension arm position. Type leading arm have the suspension arm rear shock absorber, example at vespa scooter.

Excess of bottom link suspension system lay in his construction which modestly. Technically, its mechanism use the movement swing so that assess the smaller friction. So, the vibration from surface of road is indirectly distribute to the front shock absorber. So that bottom link suspension balmier for rider. The negative lay in the distance swing suspension which is relative short. Distance between tires and sepatbor within call so that movement swing the suspension arm cause the front wheel relative sensitive to surface condition of the road scraggly. As a result, forceps is even also become easier joggle to left or to right.

b) Telescopic suspension consist of the front fork, tire, and rim. Front fork telescopic is three type, that is cheriani, cartridge, and upside down. In general, the front fork cheriani have the fork pipe component ( fork pipe) containing of spiral spring. Spiral spring work to weaken various the vibration surface of road. Among fork pipes and next fork house, correlate direct in the form of direct friction which protected by the component of a kind bushing.

Type cartridge is one up on compared to cheriani. Because his fork pipe don't contain the spiral spring as shock absorber, but replaced by special piston.

Type upside down or referred also inversed suspension. Referred that way because his fork pipe under direct to so that relate to rim and wheel through hub wheel. Is while his fork house reside in to the and clung with forceps. third Inner of this next fork is filled oil ( fluid) special is designed to assist the fork pipe weaken vibration.

The frontage telescopic suspension give advantage in the form of distance swing the longer relative compared to bottom link suspension. Besides, distance swing long him, frontage suspension only riding on and downwards. Swing movement so that stability mount. The weakness of telescopic suspension is lay in the fork pipe and frontage fork house. Cause, among both only limited seal rubber. Because fork pipe and seal continuously have friction, his rubber materials often weaken ( timewornly). As a result unable to again partition off oil shock absorber so that happened leakage and Iubricant seep the exit. If this matter is let continuously, the work of shock absorber will downhill and felt bounce.

Source : Automotive encyclopedia