Specialized Roubaix Comp Shimano Ultegra Di2 Review


The brand new top of the range Roubaix absolutely flew around the Paris-Roubaix boasting a phenomenal 5 of the top 10 spots, as well as the win. The Specialized Roubaix really is one of the best one day road bikes we’ve ever seen. It looks like a Tarmac, can be set up the same, but can attack the cobbles like a Roubaix. The Roubaix Comp is packed full of all the features we love about the top level bike, at a more affordable price.


The all-new Roubaix Comp now delivers compliance without compromise by introducing a radical new Future Shock 1.5 that gives you more control on rough roads a new Pavé seatpost that creates our most balanced Roubaix to date aerodynamics that equal the Tarmac and a Rider-First Engineered™ frame that’s shed some serious weight. Is it still comfortable? Sure but don’t call it a comfort bike because performance was behind every engineering decision Specialized made. This is the new Roubaix. Constructed from a premium carbon fibre and utilising the revolutionary Future Shock Suspension, this versatile machine is equipped for the cobbles.

The Features:

This Roubaix Comp provides a tremendous value bike, but like the frame itself this value doesn’t come with any compromises. Specialized spec’d it with Shimano’s Ultegra Di2 for its crisp shifts and powerful hydraulic disc brakes as well as smooth and sturdy DT R470 Disc wheels the all-new S-Works Pavé seat post 28mm Turbo Pro tires and our fan-favorite Power Comp saddle.


The new frame delivers compliance without compromise via the perfect balance of aerodynamics light overall weight via a FACT 10r carbon construction compliance and Rider-First Engineering™. With tube shapes that were born in the FreeFoil Shape Library and validated in the Win Tunnel the new Roubaix’s as aero as the Tarmac SL6.

Meanwhile to ensure the weight and ride quality Specialized turned to a Rider-First Engineered™ design to deliver optimal stiffness and compliance across all sizes from 44 to 64cm. Of course the frame has shed some serious weight in the process. And to prep you for your own Hell of the North there’s room for 33mm tyres.

To go along with the new frame Specialized also developed a totally-new S-Works Pavé seat post. Not only is it the first compliant seat post that’s ALSO aerodynamic it does so without any additional weight or finicky contraptions. Starting with the same D-shape design found on the Tarmac we took its compliance a step further by building additional flex into the upper and developing a new drop-clamp design in the frame. This provides plenty of compliance while staying perfectly balanced with the front-end so you get a smooth balanced ride no matter how rough the road.


With 20mm of rough-road-taming travel the Future Shock 1.5 not only delivers a smoother more comfortable ride but it also reduces fatigue and increases speed over harsh terrain. The new Smooth Boot meanwhile enhances the aesthetics to bring a clean transition from the head tube to the stem. Available in three colours, there’s something to suit everyone with the Specialized Roubaix Comp.

The Verdict:

The new Specialized Roubaix Comp really is a phenomenal bike. Full of all the features we love about the s-works version, the price is much more realistic. Comfortable geometry combined with racing characteristics make this bike an all round weapon.


  • 92%
    Performance - 92%
  • 94%
    Value - 94%
  • 91%
    Durability - 91%
  • 91%
    Aesthetic - 91%