Procircuit showa A kit 49 mm Forks dual spring with air assit caps that the team runs can add air to help with bottoming . A kit rear Shock will include front axle wheel spacer also pc triple clamps for Forks set up for 200lbs outdoor riding. Forks and shockwill fit 21 kx 250 to 24 kx 250 kx450 19 to 23 direct fit. For will will fit brand new 24 25 bikes direct fit. Shock would need new shock clevis is shorter update Shock body