Preload adjuster set 125-501 FE/TE/FX/TX 24-25Made of the highest quality materials CNC milled from high strength aluminum High quality look Visual highlight Toolless adjustment of the spring preload Toolless adjustment of the reservoir spring prelaod Enables the adjustment of the "Ride Balance" More preload on the reservoir spring = more oil pressure = more hold up No loss of comfort with more preload Approvals: HOMNN_EU Colour: red Surface: Anodized