The shock absorber with the original length plus the length adjustment, which allows future adjustment of the shock absorber. If the length adjustment is applied with 1cm, the typical result is that the motorcycle will rise (or lower) by 25 to 40mm. It allows adjusting all length measurements without fixed positions within the chosen range. The length change is your responsibility. Motomarca and its collaborator BM Suspension cannot be held responsible for the result. If the bike's height is fine for you now, no changes are necessary. The shock absorber we manufacture will not compress as much as the original one, only as much as needed for your weight. Not all motorcycle models allow the installation of the length adjustment. In some cases, changing the shock absorber may involve complications and extra costs for the vehicle inspection (ITV), for which we cannot take responsibility, so we always recommend keeping the original shock absorber. We can provide a certificate confirming that the shock absorber has been specially manufactured for the specific motorcycle. Generally, this is accepted in vehicle inspections (ITV). If you have doubts about how to proceed regarding legislation, we always recommend that you, as the user, research whether you need to submit any kind of project and/or certificate to legalize the shock absorber (or other components) change on your motorcycle. At Motomarca, we cannot take responsibility for the modifications you make to your vehicle, but we do guarantee the quality and materials of the products delivered.

In a standard shock absorber, there are two large nuts above the spring that allow you to adjust the preload. On motorcycles with a central shock absorber, adjusting the preload through the nuts without removing it is practically impossible. The hydraulic system with knob allows you to adjust the preload at the reach of your hand. If you use the motorcycle for carrying a passenger on more than 20% of your rides, we recommend opting for this system.