I'm selling a friends Jamis Xenith triathlon bike.It measures 56 cm. It's a full on tri-bike. It features a Dura Ace 7970 DI2 10 speed group. The cassette is a shimano 105 11-25. It looks new, but my friend supplied it. It has a new shimano chain. The crank is a SRAM rival 170mm, with 50-34 chain rings. The non drive side crank is a Stage power meter crank. The brakes are tektro side pulls, that are OEM for this bike. They're hidden behind the fork, and under the chain stays, for optimal area resistance. The tires are Vittoria Rubino's, with very little wear. Call them like new.They're 700x23. The saddle is a Cobb V-flow, which is made for riding on the area extensions.The handlebars are Profile Design carbon trim-bars. The wheels are American Classic deep dish (58mm.) carbon wheels, with an aluminum braking surface. Very are, and practical, because of the aluminum braking surface. This bike is an Ironman race bike, so it is made, and built, for racing, and it's ready to race. It still has 3 ironman stickers on it.