Description
Specialized Roubaix SL8 Tiagra Road Bike 2027
Two decades ago, Specialized defined the endurance road category by proving a simple truth: compliance equals performance. The 2027 Roubaix SL8 Tiagra builds upon that legacy to deliver a ride that is lighter, faster, and remarkably smoother than anything before it. At the heart of this machine is the FACT 10r carbon frame, drawing direct inspiration from the ultra-lightweight Aethos to keep the overall weight down to an impressive 9.44 kilograms. Combined with subtle aerodynamic tweaks from the FreeFoil shape library and dropped seat stays, this bike slices through the wind effortlessly while dampening harsh road feedback. Paired with reliable Shimano Tiagra hydraulic disc brakes and precision shifting, it provides absolute control whether you are embarking on a century ride, navigating chip-seal backroads, or carving down a mountain descent at full speed.
Science Driven Comfort and Control
What truly elevates the riding experience on the Roubaix SL8 is Future Shock 3.1 technology. By offering 20 millimetres of smooth, stiction-free travel directly above the head tube, the front wheel moves quickly over bumps while your body weight stays stable, resulting in a dramatic 53 percent reduction in impacts felt at the handlebars and saddle compared to the competition. At the rear, AfterShock technology combines a dropped seatpost clamp with the S-Works Pave seatpost to allow optimal vertical deflection without sacrificing pedalling efficiency. You ride firmly in the bike rather than perched on top, which dramatically relieves pressure on your shoulders, hands, and arms so you can stay fresh, safe, and confident across the longest miles.
All Road Versatility and Big Day Capability
Beyond its race-bred speed and exceptional smoothness, this endurance road bike is built for boundless exploration. Generous frame clearance accommodates tyres up to 40 millimetres wide, giving you the freedom to transition seamlessly from smooth tarmac to rough backroads and light gravel without missing a beat. Specialized has equipped the frame with an array of practical mounting options, including three water bottle mounts, top-tube storage mounts, and full mudguard compatibility. Equipped with a wide-range 11-36 cassette and compact 50/34 chainrings, this package ensures you have the gearing, storage, and all-weather capability to tackle any route on your calendar.
Technical Specification
| Frame | FACT 10R, Rider First Engineered™ (RFE), FreeFoil Shape Library tubes, threaded BB, 12x142mm thru-axle, flat-mount disc |
| Fork | Future Shock 3.1 w/ Smooth Boot, FACT Carbon 12x100mm, thru-axle, flat-mount disc |
| Front Brake | Shimano BR-RS405, hyrdaulic disc |
| Rear Brake | Shimano BR-RS405, hyrdaulic disc |
| Chain | Shimano CN-LG500 |
| Cassette | Shimano CUES CS-RS400, 11-36t |
| Bottom Bracket | Shimano Threaded BSA BB |
| Crankset | Shimano Tiagra FC-R4000, 11-speed, 50/34t |
| Front Derailleur | Shimano Tiagra R4000, braze on |
| Shift Levers | Shimano Tiagra R4000, hydraulic disc |
| Rear Derailleur | Shimano Tiagra RD-R4000, 11 speed |
| Inner Tubes | 700x28-38mm, 48mm Presta valve |
| Front Wheel | Axis Elite Disc |
| Rear Wheel | Axis Elite Disc |
| Front Tyre | Roadsport Wirebead Tyre 700x32 |
| Rear Tyre | Roadsport Wirebead Tyre 700x32 |
| Saddle | Body Geometry Power Sport, steel rails |
| Stem | Future Stem, Comp |
| Seat Binder | Hidden drop clamp |
| SeatPost | S-Works Pave |
| Handlebars | Specialized Hover Comp, Alloy, 125mm Drop, 75mm Reach w/Di2 Hole |
| Tape | Supacaz Suave |
| Weight | 9.44 kg (56cm) |
Built, Checked, Tuned and Tested
All our bikes are fully built, checked, tuned and tested by our Cytech qualified mechanics and then securely packaged, ready for delivery. All you have to do is add the pedals (if included), attach the handlebars to the stem and tighten them following the included detailed instructions or by watching our video and using the provided FREE tools. Visit our Bike Assembly page to see how you assemble your new bike once you receive it.
All bikes collected from our shop, are built, tested and ready to ride. For hassle-free home delivery and bike set-up from a qualified mechanic use our Premier Delivery Service.
Please note, occasionally, manufacturers may change the specification without notice. Bicycles do not come with pedals unless otherwise specified. Bikes ordered for delivery will not arrive with the pedals installed, please refer to the owners manual and pedal installation guides provided for guidance. We do not install accessories to bikes, including mudguards. Bikes ordered for delivery that have tubeless compatible tyres and rims will arrive with inner tubes installed or with tubeless valves installed, this will be brand dependent. Sealant is available to be purchased separately.
If you require any assistance please contact our Customer Care team.
Size Guide
Specialized Roubaix SL8 Tiagra Road Bike 2027 Sizing
Delivery & Returns
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