Rail Material: K:ium Alloy
Weight: 229 g.
The Fizik Aliante Versus X saddle features a 20mm deep relief channel down the middle and a Wing Flex shell that flexes downward where the inner thigh contacts the saddle, allowing more efficient pedaling and full-range of motion. The outer shell is nylon carbon reinforced with a black Microtex cover. The K:ium rails are made with a special alloy with a high strength-to-weight ratio and excellent vibration damping (8% weight reduction compared to solid titanium). Aliante Versus X is for The Bull: Rigid Spine. If you have a relatively low degree of spinal flexibility (more than 90 degrees between your straight legs and back when bending over as far as you can, keeping your legs straight a shoulders' width apart), you are a Bull. Your degree of Spinal flexibility will top out quite quickly when attempting to adopt the performance position. For this reason you will rotate you pelvis fully. You will benefit from the increased curvature (support) of the Aliante shape. ICS compatible.