Pair of rear shock absorbers with separate tank, compensated by pressurized gas (Nitrogen). Specific calibration for each motorcycle model. Shock absorber body in high resistance steel alloy, with head in aluminium alloy fashioned from a single block by CNC Machine. Adjustability: - Micrometric metal ring for spring preload. - Rebound (continuous ring) - Compression (clicking knob on the top of separate tank)