Adjustable Rebound and Compression dampingMonotube Shock with External Piggyback ReservoirHigh Pressure Nitrogen Gas ChargedSTX Single Tube design36 mm Piston DiameterAdjustable Preload w/ toolTop Level Comfort, Rideability and PerformanceHard Anodized - Precision CNC-Machined ComponentsLow-friction Shaft / Seal Head designFully Serviceable and RepairableFor Honda Grom rider over 80 kg/176 lb (If under 80kg/176 lb see HO 424).