Spank lounge riser bar we spent the time to develop our xgt technology xgt stands for extreme gradual taper which means that this stick is seriously tapered from the center zone right to the bar ends in the center where the stem clamps we use a larger wall thickness that thickness tapers gradually without notable transition points that can lead to stress risers all the way to the ends where its reduced to minimal wall thickness requirements this allows energy to dissipate unimpeded ove