ATTENTION TO DETAIL (PART 1)
Hidden within the lightweight, rigid CI4+ body of the Ultegra is a selection of the most advanced technologies from Shimano. HAGANE Gear and X-SHIP work in harmony with Infinity Drive and Silent Drive to deliver amazing smoothness and light rotation. The Ultegra Spod also delivers casting weight and reliability in all circumstances! Not only is the internal engineering a work of art, you'll love the casting performance of this technological marvel!