The Pinarello X9 Dura-Ace Di2 is a carbon endurance road bike with a reworked rear end that takes the buzz out of long days. X Stays 2. 0 move the attachment point lower and spread road vibration through four connection points, while the lower linkage limits rebound. A new adaptive seatpost adds 10mm of flex and weighs less than the previous one. What Our Gearhead(R) Experts Are Saying:"The wide tubeless tires absorb the first round of vibration on rough pavement, so less of it ever reaches the frame or my hands. On a long day of broken asphalt, that is the difference I notice most when I stop."Heads up! We do our best to keep bike specs and images current, but occasional component changes can happen without warning, and sometimes the photos might not show the exact build you'll receive. If you want to double-check the details, our Gearhead(R) Experts are always here to help.