The Aliante is 1 of fiÔÇÖzi:kÔÇÖs 3 Spine ConceptÔäó Mens Road Saddle shapes.┬á Of these 3, the Aliante shape is the widest and most longitudinally waved.Aliante Gamma 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 shouldersÔÇÖ width apart), you are a Bull.┬á Your degree of Spinal flexibility will top out quite quickly when attempting to adopt the performance position.┬á For this reason you will rotate you pelvis fully.You will benefit from the increased curvature (support) of the Aliante shape.Shell: Nylon Carbon Reinforced with Twin FlexÔäó ÔÇÿsweet spotÔÇÖ at the centreRail: K:iumScuff guards on either side towards rear of saddleIntegrated Clip System: YesLength: 265mmWidth: 140mmWeight: 259g