Giant AeroBar Clip-On Handlebar Clamp Shim Description: The Giant AeroBar Clip-On Handlebar Clamp Shim adapts the Giant Contact Aerobar Clip-On Clamps to fit the smaller handlebar diameter of the 2018+ Liv EnviLiv road bike. Includes: Each order will include two shims, or enough to adapt a complete set of aerobar clamps and extensions so they will fit on the smaller, proprietary shape of the handlebars found on the 2018+ Live EnviLiv road bikes Giant Contact Aerobar Clip-On Clamps and aerobar extensions sold separately