2024 Specialized Roubaix SL8 Sport 105 Road Bike


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The 2024 Specialized Roubaix SL8 Sport 105 Road Bike with Future Shock 3.0 is lighter, faster, and smoother, unleashing unmatched confidence. The new Roubaix SL8 is the most aero yet, with new aero shapes and at just 950 grams, the frame is lighter, utilizing lessons learned from the Specialized Aethos.

The Future Shock 3.0 suspension 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.

The Roubaix SL8 is the smoothest road bike Specialized's Ride Science Team has ever tested—reducing impacts at the bars and saddle by 53% compared to 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. It’s a scientific fact, smoother is indeed faster.

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. With tyre 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 tyres, that extra tyre volume and traction comes with no downsides.

The SL8 Sport 105 comes with a 12 speed Shimano 105 groupset with hydraulic disc brakes. DT Swiss tubeless ready wheels come with wide 32c tyres fitted for the smoothest ride.

This bike is perfect for

Riders who know that smooth is fast. You'll want a lightweight and aero bike that can handle the roughest roads and light gravel tracks. With a super reliable Shimano 105 groupset you can ride for days on end.

Key Features
  • FACT 10R frame with aero foil shapes and Future Shock 3.1 fork with 20mm of suspension travel
  • Fitted with DT Swiss wheels and 700x32c tyres with space for up to 38c tyres
  • Super reliable Shimano 105 12 speed groupset

Guide To Road Bike Gears

If you are buying a road bike one of the big differences between models will be which gears they use. Most manufacturers will make the same bike, using the same frame but putting different gears and wheels on it. So for instance you can buy a Trek Domane AL 2 Disc with Shimano Claris gearing for £975 or get the Trek Domane AL 4 Disc with Tiagra gearing for £1625. They are fundamentally the same bike. One comes with the Shimano Tiagra gears and the other comes with Shimano Claris gears.

In most cases, the bottom of the range gears and top of the range gears will basically work in the same way. The big differences are in the quality of material used and the weight. Top of the range gears will be lighter and smoother to use.

One thing to watch out for when comparing bikes is whether the full groupset is being used. If you are buying a bike that has Shimano 105 gears on it. Shimano makes 105 brakes, gear levers, front and rear derailleurs, cranks, chainrings and bottom brackets. So basically all of the running gear on the bike. Some bike manufacturers will fit the full groupset, others will fit Shimano 105 front and rear derailleurs but use their own brakes and cranks to save a few pounds. So if you are comparing bikes be sure to check how much of the groupset the bike actually uses.

Read our Guide to Road Bike Gears

Road Bike Buying Guide

Nothing beats the feeling of effortless speed you get on a road bike. There are lots of reasons to ride a road bike, from the simple joy of it, to racing, long distance challenges, or café rides with friends. Whatever you want to do there will be road bike out there for you.

Men’s and Women’s road bikes

Nearly all manufacturers have stopped making dedicated men’s and women’s bikes. They are now all unisex. What you will see is that on smaller bikes, brands will often fit a wider saddle (generally more female friendly). On larger bikes they will often fit a narrower one (generally more male friendly).

Disc or rim brakes

It is getting increasingly hard to buy new bikes with rim brakes as the industry has almost exclusively switched to discs. The reasons for this are pretty simple. Disc brakes are much, much, more powerful than old rim brake systems so you can stop a lot more easily and safely. Disc brakes also allow much bigger tyres to be fitted which is more comfortable. Older disc brake systems did often suffer from rubbing and squeaking. While this hasn’t been completely fixed yet it is much less common on modern bikes with hydraulic brakes. Mechanical disc brakes can still take a bit of fettling to get them right so go for hydraulic if you can.

Read our full road bike buying guide

Who are Specialized?

Specialized is one of the best-known quality bike brands in the world. Started by a group of riders in 1974. A fact which has guided their decision making ever since.

" Made for riders, by riders."

They strove to make the best quality tires when quality tyres weren't around. When people wanted to ride cruisers in the dirt, they made the first production mountain bike. When roadies wanted to go faster, Specialized doubled down on carbon and built their own wind tunnel.

Bikes like the Allez, Rockhopper and Stumpjumper have developed followings and reputations of their own. Specialized has a reputation for making high-end, high-quality bikes. Specialized bikes always look great with high-quality paint and sensible sizing hel0s you get the right bike each time. If you buy a Specialized bike you can be guaranteed it will do what it is supposed to and will last.

Find our more about Specialized bikes

Price Match at Cycles uk

We understand that price is important, so we regularly price-check our competitors to make sure we have the best offers available. We recognise that we will not always be the cheapest, so if you see the same product cheaper from any of our competitors then please get in touch via the form below and we will do our best to match any reasonable advertised price.

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

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

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 - Supacaz Super Sticky Kush

SeatPost - S-Works Pave Seat post

Chainrings - 50/34T

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

Chain - Shimano 105, 12-Speed

Bottom Bracket - Shimano BSA

Inner Tubes - 700x28/38mm, 48mm Presta valve

Front Tyre - S-Works Mondo 2BR, 700x32c

Rear Tyre - 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

Front Brake - Shimano 105 Hydraulic Disc

Rear Brake - Shimano 105 Hydraulic Disc

Weight - 9.07kg (19 lb, 15.9 oz) for size 56

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

Sizes 44, 49, 52, 54, 56, 58, 61, 64
Brand Specialized
Model Year 2024
Barcodes 888818973118, 888818973323, 888818973439, 888818973712, 888818973774, 888818974221, 888818974924, 888818977215, 888818978922, 888818979325, 888818979677, 888818979868, 888818980444, 888818980956, 888818981199, 888818981427, 888818981915, 888818982066, 888818983414, 888818983872, 888818983926, 888818984350, 888818984633, 888818985395
SKUs / Part Numbers 94424-6044, 94424-6049, 94424-6052, 94424-6054, 94424-6056, 94424-6058, 94424-6061, 94424-6064, 94424-6144, 94424-6149, 94424-6152, 94424-6154, 94424-6156, 94424-6158, 94424-6161, 94424-6164, 94424-6244, 94424-6249, 94424-6252, 94424-6254, 94424-6256, 94424-6258, 94424-6261, 94424-6264

Please note: Manufacturers can sometimes change the specification of the products from time to time.

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