Fizik aliante r3 open bike saddleenjoy exceptional comfort with the open bike saddle from fizik. With its waved profile that helps you to maintain position on long rides and a central cut out to reduce pressure when riding, this saddle will help you go further, whatever your discipline.spine concept evothis saddle is categorized as a bull type within fizik's spine concept system, which means it's ideal for riders with less spine flexibility and those who rotate their pelvises a lot when pedalling.advanced constructionthe aliante r3 open has kium rails that are lightweight and strong and its nylon base is reinforced with carbon fibre. This construction gives you a platform that provides outstanding durability and pedalling efficiency. Finishing off this saddle is fizik's comfort core foam and a tough microtex cover.features use road, mountain bike mtbcover microtex shell carbon reinforced nylon rail material 7mm kium padding material comfort core foam open central cutaway integrated clip system compatible stiffness flex low body flexibility size dimensions 275x143mm large 275x152mm weight regular 235g large 245gbuy fizik components from chain reaction cycles, the world's largest online bike store.