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1905336 / 54294092153178

Product Details

Specialized Roubaix SL8 Sport Apex AXS Road Bike 2025

Specialized revolutionised the endurance road category two decades ago by proving that high ergonomics translate to high performance. Today, the new Roubaix Sport SL8 Apex AXS Road Bike with Future Shock 3.0 is lighter, faster, and smoother than ever, delivering unmatched confidence. The road may be rough, but on the Roubaix, every ride feels effortless.

Compliance: Future Shock 3.0 takes centre stage, offering more tunability, adjustability, and durability than ever. Regardless of position on the bike, every rider experiences 20mm of smooth, stiction-free travel between the stem and head tube. This technology keeps the hands and bars steady, providing a smoother ride with greater control, so the rider stays fast, safe, and confident.

The dropped clamp design exposes more seatpost to increase deflection, but “more” is not always better. The Pavé seatpost controls this deflection for optimal vertical compliance. Combined with the Roubaix’s rigid rear triangle, they create AfterShock technology, ensuring a smooth ride without sacrificing efficiency.

The Roubaix SL8 is the smoothest road bike the Ride Science Team has ever tested, reducing impacts at the bars and saddle by 53% compared to the nearest competition. With Future Shock 3.0, the wheel moves quickly over bumps while rider mass remains stable, preserving momentum over rough terrain. Unlike traditional forks that deflect backward on impact and reduce speed, the Roubaix’s design ensures that smoother means faster.

Capability: The Roubaix pioneered endurance geometry, allowing riders to sit in the bike rather than on it, reducing pressure on the hands, arms, and shoulders. This geometry provides stability and confidence on any road while still being agile enough to tackle a mountain descent at full speed.

With tyre clearance of up to 40mm, the Roubaix is more capable than ever, delivering outstanding traction on rough roads and light gravel. Thanks to lightweight, efficient Specialized tyres, the added tyre volume and grip come with no downsides.

Roubaix is built for long adventures, so it features all the mounts needed for extended rides, including three bottle mounts, top-tube mounts, and full fender compatibility. Pack everything needed and set off on the next journey.

Performance: The new Roubaix SL8 is the most aerodynamic model yet, featuring refined tube shapes from the Free Foil library and dropped seat stays. At just 950 grams, the frame is lighter, using insights from the Aethos, the world’s lightest production frame, and a Fact 10r carbon blend. Nothing in its class is faster or lighter than the Roubaix.

Features
  • FACT 10R, Rider First Engineered (RFE), FreeFoil Shape Library tubes, threaded bottom bracket, 12x142mm thru-axle, flat-mount disc
  • Fork: Future Shock 3.1 with Smooth Boot, FACT Carbon, 12x100mm thru-axle, flat-mount disc
  • Front Brake: SRAM APEX hydraulic disc, 160mm
  • Rear Brake: SRAM APEX hydraulic disc, 160mm
  • Chain: SRAM APEX, 12-speed
  • Cassette: SRAM APEX PG 1231 XPLR, 11-44T
  • Bottom Bracket: SRAM DUB BSA
  • Crankset: SRAM APEX AXS, Wide, 12-speed
  • Shift Levers: SRAM APEX eTAP AXS, hydraulic disc
  • Rear Derailleur: SRAM APEX XPLR eTAP AXS, 12-speed
  • Chainring: 42T
  • Front Wheel: DT Swiss G540 rim, 24mm internal width, tubeless ready, 24h, Specialized fully sealed bearing thru-axle hub, centerlock disc, DT Swiss Champion 14G stainless steel spokes, DT Swiss brass nipples
  • Rear Wheel: DT Swiss G540 rim, 24mm internal width, tubeless ready, 24h, Specialized fully sealed bearing thru-axle hub, centerlock disc, DT Swiss Champion 14G stainless steel spokes, DT Swiss brass nipples
  • Inner Tubes: 700x28/38mm, 48mm Presta valve
  • Front Tyre: S-Works Mondo 2BR, 700x32c
  • Rear Tyre: S-Works Mondo 2BR, 700x32c
  • Handlebars: Specialized Hover Comp, alloy, 125mm drop, 75mm reach, with Di2 hole
  • Saddle: Body Geometry Power Sport, steel rails
  • Stem: Future Stem Comp
  • Seat Binder: Hidden drop clamp
  • Tape: Supacaz Super Sticky Kush
  • Seatpost: S-Works Pave seat post
  • Claimed Weight: 8.93kg (Size 56)
Highlights
  • FACT 10r Carbon Frameset
  • Future Shock 3.2 Suspension
  • Sram Apex AXS Groupset
  • DT Swiss G540 Wheelset
Specifications
Model
Roubaix Sport SL8 Apex AXS
Brakes [Maker]
SRAM
Cassette [Maker]
SRAM
Chain [Maker]
SRAM
Crank [Maker]
SRAM
E-Bike
No
Family
Roubaix
FD [Maker]
SRAM
Fenders Mounts
Yes
Fork [Brake Type]
Disc
Fork [Material]
Carbon
Fork [Wheel Size]
700c
Frame [Material]
Carbon
Frameset
No
Gearing [Kind]
Conventional
Gender
Unisex
Handlebar [Kind]
Drop
RD [Maker]
SRAM
RD [Model]
Apex AXS
Shifters [Maker]
SRAM
Shifters [Model]
Apex AXS
Shifting
Electronic
Suspension Configuration
Rigid
Tires [Maker]
Specialized
Product code
1905336 / 54294092153178
Size Guide
Specialized Aethos Size Guide 2022

All sizes are shown in millimetres unless otherwise stated.

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Shipping & Returns

Free UK delivery on orders over £50. Orders are dispatched within 1-2 working days and typically arrive 1-2 working days later.

Return unused items in their original packaging within 30 days of delivery. Return postage is £3.50.

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About Specialized

Innovate or die.

Founded in California in 1974, Specialized began with a simple promise: serious riders deserve serious gear. Half a century later, the brand still funds its own wind tunnel, builds its own carbon, and tests every bike with the world's best so that you ride your own best.

The first production mountain bike. The first cycling-specific shoes. FACT carbon, the Win Tunnel, S-Works. Specialized has a habit of building the things the rest of cycling ends up copying.