Fizik antares r1 carbon bike saddlethe antares r1 carbon bike saddle from fizik features a wider shape than their arione model and benefits from a curved profile which offers more support for your sit bones. Lightweight and strongthis antares r1 features improved weight distribution and a host of fizik technologies like the carbon double shell and braided carbon rail for the optimum blend of strength and support. The wing flex permits flexibility, where your thighs meet the saddle.tipping the scales at 160g, this saddle allows you to remain agile whilst maintaining comfort.the chameleonif you have an intermediate degree of spinal flexibility approximately 90 degrees between your straight legs and your back when bending over as far as you can, keeping your legs straight at shoulders width apart, you are a chameleon. Your degree of spinal flexibility helps you up to a point before you need to rotate your pelvis slightly to achieve fully the performance position. Fizik understands that not everyone has the same level of flexibility so they cater for everyone.you will benefit from the increased width and slight curvature of the antares shape.don't know if you're a bull, chameleon, or snake? No problem! You can download fizik's handy spine concept evo app which tests your flexibility. Simply search for spine concept evo in the itunes app store or google playstore and download it to your device.for assistance on how to use the app, click here.featuresintegrated clip system compatibleuse road, mountain bike mtbshell composite carbon co injected nylon wingflexrail carbon braided 7x9mmcover black gummy microtexthigh glides black microtexdimensions 274x140mmweight 160gbuy fizik components from chain reaction cycles, the world's largest online bike store.