Gradient is FSA’s Trail / Enduro Line for those of you that like to crank up the trail and tear it apart on the way back down. Since the introduction of Gradient in 2013, it has been raising the standard on strength and lowering the weight of their trusted components. Triple butted and tapered AL7050/T6 material Light enough for XC, strongh enough for freeride 25mm or 40mm rise 9° back sweep, 6° up sweep 15mm seatback Shot-peened to increase surface hardness