Prologo dimension ndr saddle tirox railsthis superb saddle is perfect for road use as it uses modern innovations to keep you stable and steady everywhere you go. It features a tough microfibre cover construction which allows for smooth movement as you take up your best position for the section ahead. This material also allows you to benefit from its tough qualities such as resistance to tearing, so you can regularly change position on long distance rides. Nack railed road saddleready for racing, this brilliant model is kitted out with nack rails for a firm and reliable hold. Prologo has also equipped it with a large central cut out which elimates numbness and perineal pressure. As a result, you'll benefit from superior padding for your sit bones and cool air flow as you battle for victory against your competitors. Features cover material microfibre rail material nack kevlar, aluminium, carbon fibre mix padding light foam use road rails size 7x9.3mm saddle dimensions 245x143mm weight 159g approxbuy prologo components from chain reaction cycles, the world's largest online bike store.