| Height (Cm) | Size |
|---|---|
| 5'1"-5'4" | 49 |
| 5'4"-5'6" | 52 |
| 5'6"-5'9" | 54 |
| 5'9"-6'0" | 56 |
| 6'0"-6'3" | 58 |
| 6'3"-6'6" | 61 |
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Specialized created the endurance road category over two decades ago, proving that dialed-in ergonomics lead directly to higher performance. Today, the Roubaix SL8 with Future Shock 3.0 is lighter, faster, and smoother than any endurance road bike Specialized has ever built, giving you unmatched confidence on every ride.
The road might be hell below, but on a Roubaix, it's always heaven above.
Future Shock 3.0: More tunable, adjustable, and durable than ever, Future Shock 3.0 steals the spotlight. No matter your hand position, you'll get 20mm of smooth, stiction-free travel tucked between the stem and head tube. It keeps your hands and bars steady so you stay comfortable, planted, and in complete control when the pavement turns rough.
AfterShock Technology: Specialized's dropped clamp design exposes more of the seatpost to increase flex, though "more" isn't automatically better on its own. The Pavé carbon seatpost regulates that flex for ideal vertical compliance. Together, they form AfterShock technology. Paired with a stiff rear triangle, you get a plush ride that still transfers every watt of pedaling power straight to the road.
Proven by Ride Science: 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 closest competition. Future Shock 3.0 lets the front wheel track quickly over bumps while your body mass stays steady, carrying your momentum right through broken pavement. Traditional forks flex backward on impact, robbing you of forward speed. It's backed by data: smoother really is faster.
Pioneered Endurance Geometry: The Roubaix puts you "IN" the bike rather than perched "ON" top of it. That relieves pressure on your hands, arms, and shoulders for all-day comfort and confidence, while keeping the handling sharp enough to carve down mountain descents at full gas. Snuggle up and enjoy the ride.
40mm Tire Clearance: With room for tires up to 40mm wide, this endurance machine delivers serious grip on beat-up backroads and light gravel. Paired with fast-rolling, lightweight Specialized tires, you get all that extra air volume and traction without feeling sluggish on smooth tarmac.
Built for Big Adventures: The Roubaix is built for massive days in the saddle, so Specialized outfitted it with every mount your adventures call for. You get three water bottle mounts, direct top-tube mounts for a bento box, and full fender compatibility. Go ahead and pack everything you need for the long haul.
Faster and Lighter Than Ever: The Roubaix SL8 is Specialized's most aerodynamic endurance frame yet, featuring wind-cheating tube profiles from the Free Foil library and dropped seat stays. Tipping the scales at just 950 grams, it's lighter than ever thanks to engineering lessons borrowed from the Aethos (the world's lightest production road frame) and Specialized's FACT 10r carbon blend. Nothing in its class is faster or lighter.
Pro-Built and Ready to Roll: Every bike shipped from Bicycle Warehouse is inspected, tuned, and pre-built by our certified mechanics before delivery. You'll only need a few minutes with basic tools to install the front wheel, handlebars, and pedals before hitting the open road.
Specialized
SKU: 94427-3044
Specialized created the endurance road category over two decades ago, proving that dialed-in ergonomics lead directly to higher performance. Today, the Roubaix SL8 with Future Shock 3.0 is lighter, faster, and smoother than any endurance road bike Specialized has ever built, giving you unmatched confidence on every ride.
The road might be hell below, but on a Roubaix, it's always heaven above.
Future Shock 3.0: More tunable, adjustable, and durable than ever, Future Shock 3.0 steals the spotlight. No matter your hand position, you'll get 20mm of smooth, stiction-free travel tucked between the stem and head tube. It keeps your hands and bars steady so you stay comfortable, planted, and in complete control when the pavement turns rough.
AfterShock Technology: Specialized's dropped clamp design exposes more of the seatpost to increase flex, though "more" isn't automatically better on its own. The Pavé carbon seatpost regulates that flex for ideal vertical compliance. Together, they form AfterShock technology. Paired with a stiff rear triangle, you get a plush ride that still transfers every watt of pedaling power straight to the road.
Proven by Ride Science: 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 closest competition. Future Shock 3.0 lets the front wheel track quickly over bumps while your body mass stays steady, carrying your momentum right through broken pavement. Traditional forks flex backward on impact, robbing you of forward speed. It's backed by data: smoother really is faster.
Pioneered Endurance Geometry: The Roubaix puts you "IN" the bike rather than perched "ON" top of it. That relieves pressure on your hands, arms, and shoulders for all-day comfort and confidence, while keeping the handling sharp enough to carve down mountain descents at full gas. Snuggle up and enjoy the ride.
40mm Tire Clearance: With room for tires up to 40mm wide, this endurance machine delivers serious grip on beat-up backroads and light gravel. Paired with fast-rolling, lightweight Specialized tires, you get all that extra air volume and traction without feeling sluggish on smooth tarmac.
Built for Big Adventures: The Roubaix is built for massive days in the saddle, so Specialized outfitted it with every mount your adventures call for. You get three water bottle mounts, direct top-tube mounts for a bento box, and full fender compatibility. Go ahead and pack everything you need for the long haul.
Faster and Lighter Than Ever: The Roubaix SL8 is Specialized's most aerodynamic endurance frame yet, featuring wind-cheating tube profiles from the Free Foil library and dropped seat stays. Tipping the scales at just 950 grams, it's lighter than ever thanks to engineering lessons borrowed from the Aethos (the world's lightest production road frame) and Specialized's FACT 10r carbon blend. Nothing in its class is faster or lighter.
Pro-Built and Ready to Roll: Every bike shipped from Bicycle Warehouse is inspected, tuned, and pre-built by our certified mechanics before delivery. You'll only need a few minutes with basic tools to install the front wheel, handlebars, and pedals before hitting the open road.
| 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 | 120 |
| Saddle Width | 155 | 155 | 155 | 143 | 143 | 143 | 143 | 143 |
| Seatpost Length | 380 | 380 | 380 | 380 | 380 | 450 | 450 | 450 |
| Stack | 543 | 549 | 566 | 585 | 605 | 630 | 665 | |
| Reach | 353 | 363 | 370 | 381 | 389 | 397 | 403 | |
| Head Tube Length | 90 | 90 | 105 | 122 | 140 | 168 | 202 | |
| Head Tube Angle | 69.3 | 70.8 | 71.5 | 72.3 | 73 | 73 | 73.5 | |
| BB Height | 269 | 269 | 269 | 270 | 270 | 271 | 271 | |
| BB Drop | 80 | 80 | 80 | 78 | 78 | 78 | 78 | |
| Trail | 76 | 66 | 62 | 61 | 57 | 57 | 54 | |
| Fork Length, Full | 375 | 375 | 375 | 375 | 375 | 375 | 375 | |
| Fork Rake/Offset | 52 | 52 | 52 | 47 | 47 | 47 | 47 | |
| Front Center | 589 | 587 | 593 | 598 | 604 | 620 | 631 | |
| Chainstay Length | 418 | 418 | 418 | 420 | 420 | 423 | 423 | |
| Wheelbase | 994 | 992 | 988 | 1005 | 1012 | 1031 | 1042 | |
| Top Tube Length, Horizontal | 503 | 523 | 534 | 550 | 569 | 584 | 600 | |
| Bike Standover Height | 686 | 719 | 747 | 766 | 787 | 809 | 847 | |
| Seat Tube Length | 365 | 410 | 445 | 465 | 485 | 505 | 545 | |
| Seat Tube Angle | 75 | 74 | 74 | 74 | 73.5 | 73.5 | 73.5 |