XTrig Bar Mounts include the PHDS (Progressive Handlebar Dampening System) handlebar mount. This mount allows the rider to mount the handlebar in 12 different positions. In addition, the handlebar is held in place with the patented PHDS handlebar clamp. It absorbs engine and chassis vibrations, decreasing forearm fatigue. The system also dampens acting forces on the handlebar in a horizontal and vertical direction, giving you a less strenuous ride.