The smoother, faster S-Works Roubaix SL4 frameset features a super light and stiff FACT 10r carbon frame with tapered head tube, Zertz vibration dampers, and full internal cable routing—the same design that Tom Boonen rode to win the 2012 Paris-Roubaix. Customize this OSBB frameset with the spec of your choice. Includes COBL GOBL-R seatpost for added comfort and control.
- 1-1/8" to 1-3/8" (size specific) headset with stainless steel cartridge bearings ensures precision, low maintenance and lighter weight
- Specialized FACT IS 10r carbon SL4 frame with Zertz is the fastest and smoothest endurance bike available, with size specific engineering, tapered headtube, ultra lightweight.
- All-new Specialized FACT carbon fork with Zertz has size-specific engineering that creates a more balanced and stable ride for riders of different sizes
- High-performance Body Geometry Toupe RBX saddle with hollow Ti rails, flat profile and generous padding, partnered with all-new Specialized CobL GOBL'R seatpost to absorb road vibrations