Prologo dimension saddle t4.0 railsenjoy a comfortable ride, no matter what your discipline, with the dimension saddle from prologo. Built to provide you with enhanced support, it features a pressure reducing pas system to help eradicate numbness and discomfort, and light foam padding to ease your sit bones on long journeys. Lightweight multi discipline saddlea smooth movement microfibre cover lets you find your optimal position with ease, as strong and sturdy t4.0 rails round out this excellent prologo throne. The rear section of the seat is shaped to look after your lumbar area while providing pelvic support and improved pedalling performance, with the long, squared off nose enhancing control and climbing prowess.featuresuse road, mountain bike mtbrail material t4.0padding light foamcover microfibresaddle dimensions 245x143mmweight 204gbuy prologo components from chain reaction cycles, the world's largest online bike store.