Specialized 2025 Roubaix SL8 Sport 105

Specialized 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.

Specifications

FRAMESET

Frame

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

SUSPENSION

Fork

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

COCKPIT

Handlebars

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

Stem

Future Stem Comp

Seat Binder

Hidden drop clamp

SeatPost

S-Works Pave Seat post

Saddle

Body Geometry Power Sport, steel rails

Tape

Supacaz Super Sticky Kush

BRAKES

Front Brake

Shimano 105 Hydraulic Disc

Rear Brake

Shimano 105 Hydraulic Disc

DRIVETRAIN

Chainrings

50/34T

Chain

Shimano 105, 12-Speed

Bottom Bracket

Shimano BSA

DRIVETRAIN

Cassette

Shimano 105, 12-speed, 11-36T

Shift Levers

Shimano 105 R7120, Hydraulic Disc

Crankset

Shimano 105, 12-Speed

Front Derailleur

Shimano 105 R7100, braze-on

Rear Derailleur

Shimnao 105 R7100, 12-Speed

WHEELS & TIRES

Inner Tubes

700x28/38mm, 48mm Presta valve

Front Tire

S-Works Mondo 2BR, 700x32c

Rear Tire

S-Works Mondo 2BR, 700x32c

Front Wheel

DT Swiss G540 rim, 24mm internal width, tubeless ready, 24h, Specialized full 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 full sealed bearing thru axle hub, centerlock disc, DT Swiss Champion 14G stainless steel spokes, DT Swiss brass nipples

WEIGHT

Weight Size

56

Weight

9.07kg (19 lb, 15.9 oz)

Geometry

	44	49	52	54	56	58	61	64
Crank Length	165	165	170	172.5	172.5	175	175	175
Handlebar Width	360	380	400	420	420	440	440	440
Stem Length	70	80	90	100	100	110	110	110
Saddle Width	155	155	155	143	143	143	143	143
Seatpost Length	380	380	380	380	380	450	450	450
Stack	540	555	570	585	605	630	665	685
Reach	353	363	370	381	389	397	403	409
Head Tube Length	90	90	105	122	140	168	202	222
Head Tube Angle	69.3	70.8	71.5	72.3	73	73	73.5	73.5
BB Height	269	269	269	270	270	271	271	271
BB Drop	80	80	80	78	78	78	78	78
Trail	62	61	57	57	54	54	76	66
Fork Length, Full	375	375	375	375	375	375	375	375
Fork Rake/Offset	52	52	52	47	47	47	47	47
Front Center	589	587	593	598	604	620	631	634
Chainstay Length	418	418	418	420	420	423	423	423
Wheelbase	994	992	998	1005	1012	1031	1042	1054
Top Tube Length, Horizontal	569	584	600	618	503	523	534	550
Bike Standover Height	686	719	747	766	787	809	847	865
Seat Tube Length	365	410	446	465	485	505	545	581
Seat Tube Angle	75	74	74	74	73.5	73.5	73.5	73