This Bontrager Affinity bike seat is perfect for any rider looking for a comfortable and durable saddle. With a sleek black and white design, it is sure to complement any bike. The synthetic material offers a long-lasting and easy-to-clean surface for extended use. This saddle is compatible with a variety of bike types including road, single speed/fixie, and cyclocross. The rail/clamp style is 7 x 7 mm and the seat style is racing, making it a great choice for those who enjoy a faster ride. The Bontrager Affinity bike seat measures 10 x 5.75 inches in length and width respectively.