Machined aluminum body, shock absorber adjustable in spring preload and rebound (30 clicks). The length of the shock absorber is adjustable in length +/-5mm. Technical Data: Type : Gas pressure Top mounting : Eye Inner diameter of eye : 12 mm Length : 390 mm Bottom mounting : Eye Inner diameter of eye : 12 mm Adjustment options : Compression stage Length adjustable +/- 5 mm Spring color : black Spring characteristic : 110 Spring length : 185 mm Spring diameter : 56 mm Compensating reservoir : No Manufacturer : YSS Piston diameter : 45 mm Piston rod diameter : 16 mm