Specialized Roubaix S-Works Di2 2025 - Road Bike





- 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 optimal vertical compliance. Together, they create AfterShock technology, which, when paired with the Roubaix’s rigid rear triangle, delivers 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% 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. 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 828 grams, the frame is 50 grams lighter, utilizing lessons learned from the Aethos - the world’s lightest production frame - and our premium Fact 12r carbon blend. Nothing in its class is faster or lighter than the Roubaix.
Occasionally, without notice, manufacturers change product design and/or specifications.
Frame | FACT 12R, Rider First Engineeredâ„¢ (RFE), FreeFoil Shape Library tubes, threaded BB, 12x142mm thru-axle, flat-mount disc |
Fork | Future Shock 3.3 w/ Smooth Boot, FACT Carbon 12x100mm, thru-axle, flat-mount disc |
Stem | S-Works Future Stem, w/ Integrated Computer Mount |
Bars | S-Works Carbon Hover Drop 125mm, Reach 75mm, w/Di2 hole |
Front Brake | Shimano Dura-Ace R9270, hydraulic disc |
Rear Brake | Shimano Dura-Ace R9270, hydraulic disc |
Front Mech | Shimano Dura-Ace R9250, braze-on |
Rear Mech | Shimano Dura-Ace R9250, 12-speed |
Shifters | Shimano Dura-Ace R9270, hydraulic disc |
Speed | 24 |
Rims | Roval Terra CLX II, 25mm internal width, 32mm depth, 21h, Tubeless ready |
Front Hub | Roval LFD hub with ceramic SINC bearings |
Rear Hub | Roval LFD hub with ceramic SINC bearings |
Spokes | DT Swiss Aerolite spokes |
Front Tyre | S-Works Mondo 2BR, 700x32c |
Rear Tyre | S-Works Mondo 2BR, 700x32c |
Seat Post | S-Works Pave Seat post |
Saddle | S-Works Power with Mirror |
Chainset | Shimano Dura-Ace R9200, HollowTech II, 12-speed with 4iiii Precision Pro dual-sided powermeter |
Bottom Bracket | Shimano Dura-Ace, BB-R9100 |
Chain | Shimano Dura-Ace, 12-speed |
Cassette | Shimano Dura-Ace, 12-speed, 11-34t |
Pedals | Resin Platform |
Weight | 7.25 kg (15 lb, 15.7 oz) |
Specialized Roubaix 2025 Size Chart
Size | Height (cm) | Height (Feet) |
44 | 142 - 152 | 4'8" - 5'0" |
49 | 155 - 163 | 5'1" - 5'4" |
52 | 163 - 170 | 5'4" - 5'7" |
54 | 170 - 178 | 5'7" - 5'10" |
56 | 175 - 180 | 5'9" - 5'11" |
58 | 180 - 188 | 5'11" - 6'2" |
61 | 188 - 196 | 6'2" - 6'5" |
64 | 196 - 205 | 6'5" - 6'9" |
What size frame do I need if I am between sizes? - read here
Specialized Roubaix 2025 Geometry Chart
Frame Size | 44 | 49 | 52 | 54 | 56 | 58 | 61 | 64 |
---|---|---|---|---|---|---|---|---|
Stack | 543 | 549 | 566 | 585 | 605 | 630 | 665 | 685 |
Reach | 353 | 353 | 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° | 73.5° | 73.5° | 73.5° |
Bottom Bracket Height | 269 | 269 | 270 | 270 | 270 | 272 | 271 | 271 |
Bottom Bracket Drop | 80 | 80 | 80 | 78 | 78 | 77 | 78 | 78 |
Trail | 76 | 70 | 67 | 61 | 58 | 57 | 57 | 54 |
Fork Length | 375 | 375 | 375 | 375 | 375 | 375 | 375 | 375 |
Fork Rake/Offset | 52 | 52 | 52 | 52 | 50 | 50 | 50 | 50 |
Front Centre | 589 | 587 | 593 | 598 | 604 | 620 | 631 | 633 |
Chainstay Length | 418 | 418 | 418 | 420 | 420 | 423 | 423 | 423 |
Wheelbase | 994 | 992 | 998 | 1005 | 1012 | 1031 | 1042 | 1054 |
Top Tube Length (horizontal) | 503 | 526 | 534 | 550 | 566 | 581 | 600 | 618 |
Standover Height | 686 | 719 | 747 | 766 | 787 | 809 | 847 | 865 |
Seat Tube Length | 365 | 410 | 445 | 475 | 500 | 525 | 555 | 585 |
Seat Tube Angle | 75° | 74° | 74° | 73.5° | 73.5° | 73.5° | 73.5° | 73° |
Crank Length | 165 | 165 | 170 | 172.5 | 172.5 | 175 | 175 | 175 |
Handlebar Width | 360 | 380 | 400 | 420 | 420 | 440 | 440 | 440 |
Saddle Width | 155 | 155 | 155 | 143 | 143 | 143 | 143 | 143 |
Seatpost Length | 380 | 380 | 380 | 380 | 380 | 450 | 450 | 450 |
All measurements are in mm unless otherwise stated.
The above table shows the standard geometry for the bicycle as shipped, other geometry configurations may be available with certain bikes. Please contact us via Live Chat to find out more.
Customer reviews and Q&A's are disabled because you declined functional cookies.
To enable reviews and Q&A's click the 'Cookie Settings' button below and enable functional cookies.

Specialized Roubaix S-Works Di2 2025 - Road Bike
Cycle to Work is a salary sacrifice scheme, where you can save up to 42% off a new Bike and Safety equipment. This means the cost is deducted from your salary as a non-cash benefit, so you save on tax and national insurance.
Here at Tredz, we accept Cycle to Work vouchers from all national schemes. For more information click here.
We understand that the Cycle to Work process can be a little slower than we would all like - so to help you pick the perfect ride, we're now offering FREE Cycle to Work Reservations (T&C's apply). Simply speak to a member of our Online Bike Experts Team via Live Chat to discuss your reservation. Find out more here.
At Tredz we make finance easy. You can choose from a range of flexible finance repayments from 6 months up to 48 months, choose to place a deposit and pay the balance on finance. Go with a 0% APR finance deal with absolutely no interest on payments, or a 9.9% APR Buy Now Pay later option with a choice of 12 or 24 deferred payment options, or a longer-term 14.9% APR option with lower monthly payments. For more information click here.
At Tredz, we’re committed to bringing you the best products at the best prices. If you find a product cheaper elsewhere, simply contact us for an immediate response using our live chat service. Click here to discuss your price match with an agent now for help.
Subject to Terms and Conditions
At Tredz, we offer a fast high quality service, with a range of options from free delivery on orders over £30, next day and convenient click & collect from one of our stores. Simply select within the checkout.
*Courier deliveries to Northern Ireland, Isle of Man, Isle of Wight, Channel Islands and the Scottish Highlands/Islands will incur a charge.At Tredz, if you are not 100% happy with your order, then you can use our simple hassle free returns service. Simply return the item new and unused in the manufacturers original packaging within 365 days of purchase. Bikes and larger items are collected by courier.
When you receive your bike, all you'll need to do is unpack it, attach the pedals, turn the handlebars and ride.
To help you get started we have put together a handy Bike Building Guide, click here.