RockShox Reverb Enduro Height Collar Description: The RockShox Reverb Enduro Height Collar provides a rider with maximum control of the amount of drop that is in their dropper post. The precision machined aluminum collar securely clamps on the dropper post anywhere the user wants it to be, and will help to limit the amount of dropper post drop to give maximum control of the saddle height. Features: Machined from aluminum for light weight and secure grip on dropper post shaft Hinged clamp design allows collar to be installed easily without having to take apart the dropper post Securely clamps on to limit the amount of drop in dropper post for maximum control of saddle height in challenging trail conditions Compatibility: All generations of Reverb and Reverb Stealth dropper posts