Offers a drop-in upgrade installation / replacement for the original springs and fork caps for a more positive front end feel during cornering and braking. No permanent modifications required. Allows external spring preload adjustment. Complete with installation instructions and advice on what viscosity damping fluid should be used for various applications. - Direct replacement for OEM components - No permanent modifications required - Adjustable preload - Includes 2 progressive wound springs, 2 fork caps and instructions.