The super-light frame has been constructed from our FACT 10r carbon fibre. Its stiffness levels are also off the charts & compared to the sl 4 iteration of yesteryear youll experience a whole new faster & more efficient geometry. Through some engineering sorcery however weve managed to keep the same fit feel & position that weve all come to love from the sl 4 & kept it consistent throughout the size-range due to our rider-first engineered construction. Of course youre probably thinking "get on to the suspension thing up front." we call it future shock & essentially its a piston in the head tube with 20mm of travel. We developed this technology in partnership with McLaren applied technologies & the result of this are a host of drastic performance improvements namely in the vertical compliance department. Without giving a physics lecture we found that focusing on vertical compliance instead of fork splay meant that we could improve smoothness speed & comfort in one fell swoop. & of all the bikes that weve tested with our rolling efficiency model the Roubaix outperforms anything on the market. This Roubaix Expert comes equipped shimano S latest Ultegra 8050 Di 2 shifting hydraulic 8070 disc brakes & h&-built Roval c 38 carbon fibre wheels. Features our rider-first engineered design that ensures every frame size has the same legendary responsiveness & smooth ride quality that youd expect from a roubaix. The FACT 10r frameset holds its own with our highest-end carbon offerings, with the ideal blend of light overall weight & targeted stiffness, while the all-new future shock "suspension" system at the cockpit delivers a revolutionary degree of comfort & control. Yep, thats rightcarbon wheels on an expert-level bike. The Roval c 38 disc carbon wheels bring performance to the masses. Theyre lightweight, durable, & ready for just about anything. Shimano S new Ultegra Di 2 with hydraulic disc brakes not only offers exceptionally smooth & crisp shifts, but it also provides incredible stopping power & modulation.