For the original setting value of the rear shock absorber, the most important thing is to measure the actual stroke length value first, and make detailed adjustments while actually testing it. The ratio of the effective stroke length of the shock absorber to the actual stroke length is determined. The most appropriate allocation.If the shock absorber is adjusted to be soft at high speed, although it will increase the comfort of the ride, it is easy to shrink the shock absorber to the minimum under high load conditions, thereby damaging the parts; on the contrary, if the adjustment is too hard, although It will not exceed the range that the shock absorber can withstand, but the ride is more bumpy and the comfort will be greatly reduced. That is to say, first simulate the road section and vehicle speed that you usually ride, confirm the function of the shock absorber, and adjust to the most comfortable and smooth riding state within the normal operating range of the shock absorber.Basically, the adjustment of the original setting is based on the subsequent shock absorber. If the front shock absorber also has an original setting adjustment mechanism, its setting is also adjusted with the auxiliary rear shock absorber setting as the center.Fourth, insufficient lubrication can easily lead to wearThe fixed part of trolley with four Wheels absorber (the place where the screw is locked), although the angle that it can rotate is not large, because of the large load, this part is very easy to cause insufficient lubrication, and produce "squeaking" noise, the most serious Circumstances can even cause the bushing to wear and even damage. Although it only rotates at a slight angle, if the movement is not smooth due to rust or wear, the performance of the shock absorption system will be greatly affected. Therefore, regular lubrication and maintenance of this part is very important and must not be ignored.