Specialized S-Works Roubaix SL3 Dura-Ace

The Specialized S-Works Roubaix SL3 Dura-Ace is a high-end road bike designed for athletes. This is very similar to the Specialized S-Works Roubaix SL3 Di2, but uses the more traditionally designed Shimano Dura-Ace 10-speed shifters and a FACT carbon Pave seatpost with a Zertz insert to reduce vibrations.

In all other ways they are the same, including the use of a FACT IS 11r carbon SL3 frame that weighs less than 1000 grams. This frame has increased tortional stiffness for better control and power transfer, and uses Zertz seatstay inserts. A matching FACT full carbon monocoque fork is used for stiff control with vibration-dampening Zertz inserts.  Shimano Dura Ace carbon tubeless wheels are also used for better response and reduced weight.