Fizik aliante r1 carbon braided bike saddleone of fizik's most popular saddles, the aliante carbon bike saddle has been a firm favourite since 1999 by both professionals and amateur cyclists alike. Featuring exceptional comfort combined with a twin flextrade carbon kevlar shell it's both lightweight and durable.integrated clip systemthe integrated clip system ics is an integrated interface in the saddle's base to allow quick attachment and removal of ics accessories such as the fizik saddle pak and blink light. It is a clean, easy, fast and secure attachment that does not require any tools.carbon braided railsrather than a conventional solid or tubular rail, fizik's rails use an outer sleeve of braided carbon fibres forming a tube, with the void inside being filled by unidirectional carbon fibres. This construction is strong, light and stiff.twin flex technologytwin flex construction combines two layers within the shell. A layer of multi directional carbon fibre provides strength, while a bi directional layer allows flex for comfort. The two layers are moulded together so that the stiffer outer layer controls the flexibility of the inner layer.aliante carbon is for the bull rigid spineif 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 your pelvis fully and will benefit from the increased curvature support of the aliante shape.featuresuse road, mountain bike mtbintegrated clip system compatibleshell composite carbon co injected nylon twinflexrail carbon braided 7x9mmcover microtexstiffness flex twin flexdimensions 275x140mmweight 185gbuy fizik components from chain reaction cycles, the world's largest online bike store.