Roubaix SL8 2025 - Tiagra - Golden Sports Inc.

We created the endurance road category two decades ago proving that high ergonomics means high performance. Today, the new Roubaix SL8 with Future Shock 3.0 is lighter, faster, and smoother than any road bike ever made, unleashing unmatched confidence. The road may be hell below, but on Roubaix, it’s always heaven above.

COMPLIANCE: Future Shock 3.0 is the star of the show, more tunable, adjustable, and durable than ever. Now, regardless of position on the bike, every rider experiences 20mm of smooth, stiction-free travel between the stem and head tube. Future Shock helps keep your hands and bars steady for a smoother ride with more control to stay fast, safe, and confident.

Our dropped clamp design exposes more seatpost to increase deflection, but “more” isn’t simply better. The Pavé seatpost controls that deflection for the optimal vertical compliance. Together they create AfterShock technology, and when paired with the Roubaix’s rigid rear triangle, deliver a smooth ride with no loss in efficiency.

The Roubaix SL8 is the smoothest road bike our Ride Science Team has ever tested—reducing impacts at the bars and saddle by 53% vs. the nearest competition. With Roubaix’s Future Shock 3.0 the wheel quickly moves over the bump, while rider mass remains stable, maintaining momentum in rough terrain. Typical forks deflect backward on impact, causing a measurable loss in speed. It’s a scientific fact, smoother is indeed faster.

CAPABILITY: The Roubaix pioneered endurance geometry, so you ride “IN” the bike, not “ON” the bike to relieve pressure on your hands, arms, and shoulders for capability and confidence on any road, yet it’s ready to dissect a mountain decent at full gas. Snuggle up.

With tire clearance up to 38c/40mm, this endurance road machine delivers better traction than ever on rough roads and even light gravel. Thanks to lightweight, super-efficient Specialized tires, that extra tire volume and traction comes with no downsides.

Roubaix inspires really BIG days on the bike, so we’ve given it every mount your adventures could need—three bottle mounts, top-tube mounts, and it’s even fender-ready. So, go ahead and bring it all along for the ride.

PERFORMANCE: The new Roubaix SL8 is our most aero yet, with new aero shapes from our Free Foil library and dropped seat stays. At just 950 grams, the frame is lighter, utilizing lessons learned from the Aethos - the world’s lightest production frame - and Fact 10r carbon blend. Nothing in its class is faster or lighter than the Roubaix.

Technical Specifications

Cockpit

Handlebars

Specialized Hover Comp, Alloy, 125mm Drop, 75mm Reach w/Di2 Hole

Saddle

Body Geometry Power Sport, steel rails

Stem

Future Stem Comp

Seat Binder

Hidden drop clamp

Tape

Roubaix S-Wrap

SeatPost

S-Works Pave Seat post

Drivetrain

Chainrings

50/34

Chain

KMC X10, 10-Speed

Front Derailleur

Shimano 105 R7100, braze-on

Bottom Bracket

Shimano BSA

Crankset

Shimano Tiagra, 10-Speed

Shift Levers

Shimano Tiagra 4720, Hydraulic Disc

Rear Derailleur

Shimnao Tiagra

Cassette

Shimano Tiagra, 10-speed, 11-34T

Wheels & Tires

Front Wheel

Axis Elite Disc

Rear Wheel

Axis Elite Disc

Inner Tubes

700x28/38mm, 48mm Presta valve

Front Tire

Road Sport, 700x32c

Rear Tire

Road Sport, 700x32c

Suspension

Fork

Future Shock 3.1 w/ Smooth Boot, FACT Carbon 12x100mm, thru-axle, flat-mount disc

Frameset

Frame

FACT 10R, Rider First Engineered™ (RFE), FreeFoil Shape Library tubes, threaded BB, 12x142mm thru-axle, flat-mount disc

Brakes

Front Brake

Shimano Tiagra Hydraulic Disc

Rear Brake

Shimano Tiagra Hydraulic Disc

Weight

9.46kg (20 lb, 13.7 oz)

Weight Size

* Weights based on production painted frames as pictured. Actual weights will vary based on colorway, frame size, and component variation. Specifications are subject to change without notice.

Geometry

	44	49	52	54	56	58	61	64
Crank Length	165mm	165mm	170mm	172.5mm	172.5mm	175mm	175mm
Handlebar Width	360mm	380mm	400mm	420mm	420mm	440mm	440mm
Stem Length	70mm	80mm	90mm	100mm	100mm	110mm	110mm
Saddle Width	155mm	155mm	155mm	143mm	143mm	143mm	143mm
Seatpost Length	380mm	380mm	380mm	380mm	380mm	450mm	450mm
Stack	543mm	549mm	566mm	585mm	605mm	630mm	665mm	685mm
Reach	353mm	363mm	370mm	381mm	389mm	397mm	403mm	409mm
Head Tube Length	90mm	90mm	105mm	122mm	140mm	168mm	202mm	222mm
Head Tube Angle	69.3°	70.8°	71.5°	72.3°	73°	73°	73.5°	73.5°

Head Tube Angle	69.3°	70.8°	71.5°	72.3°	73°	73°	73.5°	73.5°
BB Height	269mm	269mm	269mm	270mm	270mm	271mm	271mm	271mm
BB Drop	80mm	80mm	80mm	78mm	78mm	78mm	78mm	78mm
Trail	76mm	66mm	62mm	61mm	57mm	57mm	54mm	54mm
Fork Length, Full	375mm	375mm	375mm	375mm	375mm	375mm	375mm	375mm
Fork Rake/Offset	52mm	52mm	52mm	47mm	47mm	47mm	47mm	47mm
Front Center	589mm	587mm	593mm	598mm	604mm	620mm	631mm	634mm
Chainstay Length	418mm	418mm	418mm	420mm	420mm	423mm	423mm	423mm
Wheelbase	994mm	992mm	998mm	1005mm	1012mm	1031mm	1042mm	1054mm
Top Tube Length, Horizontal	503mm	523mm	534mm	550mm	569mm	584mm	600mm	618mm
Bike Standover Height	686mm	719mm	747mm	766mm	787mm	809mm	847mm	865mm
Seat Tube Length	365mm	410mm	446mm	465mm	485mm	505mm	545mm	581mm
Seat Tube Angle	75°	74°	74°	74°	73.5°	73.5°	73.5°	73°

endurance bike / Future Shock 3.0 / road bike

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Specialized Roubaix SL8 2025 - Tiagra