Jamis Xenith Endura, Di2 Shimano Ultegra, Carbon Fiber Road Bike, 18 Pounds! Size: 56cm Product Details: Brand: Jamis Model: Xenith Endura Year: 2013 Frame Material: Carbon Fiber Type: Road Bike Weight: 18lbs Size: 56cm Top Tube: 56cm Seat Tube: 53cm Stand Over: 79cm Wheelset: HED Belgium+ Shifters: Shimano Ultegra Di2 Brakes: Shimano Ultegra Front Derailleur: Shimano Ultegra Di2 Rear Derailleur: Shimano Ultegra Di2 Crankset: Shimano Ultegra (172.5) Chainrings: 50/34 Cassette: SRAM, 10-speed: 11-32t Handlebar: Ritchey Comp Stem: Bontrager RL Seat Post: Ritchey Carbon Pro Saddle: San Marco Ponza Power Tires: Continental GrandPrix 5000, 700 x 28c Tire Type: Clincher Pedals: Sold Separately Bike ID: 98765439321777 Factory Description: Jamis’s Xenith Endura Elite Di2 is a stable, confident favorite among century riders, weekend warriors and racers alike. The upright, forgiving geometry includes a tapered head tube, a long wheelbase and a decreased head tube angle, all providing the stability, steering control and comfort to keep you pedaling strong all day. The stiff, sleek, lightweight carbon frameset is quick to dance up hills and take top honors during city limit sprint signs. Climbing or sprinting, with the virtually symbiotic shifting of Shimano’s electronic Ultegra Di2, you might just forget where the bike starts and your body ends.