If you’re considering buying a Specialized Roubaix, weight is probably one of your top questions — especially if you want a fast, efficient endurance bike that doesn’t slow you down on climbs. So, how much does a Specialized Roubaix weigh? The answer depends on the specific model and build, but every Roubaix strikes a balance between lightness, comfort, and long-distance performance that few endurance bikes can match.
1. Average Weight of the Specialized Roubaix Lineup
The weight of the Specialized Roubaix varies depending on the model, frame material, and components. Here’s a general breakdown of what you can expect:
- S-Works Roubaix: around 14.8 to 15.5 lbs (6.7 to 7.0 kg)
- Roubaix Pro / Expert: around 16 to 17 lbs (7.2 to 7.7 kg)
- Roubaix Comp / Base Models: around 18 to 19 lbs (8.1 to 8.6 kg)
Each model’s weight can vary slightly depending on wheelset choice, drivetrain, and whether it’s equipped with electronic shifting (like Shimano Di2 or SRAM AXS). Even with endurance-focused comfort features such as Future Shock 2.0 and wider tire clearance, the Roubaix remains impressively lightweight — especially for a bike designed to absorb road vibrations and deliver stability over rough terrain.
2. Why the Roubaix Is Lighter Than Most Endurance Bikes
One of the main reasons the Roubaix keeps its weight low is its advanced FACT carbon fiber construction. The high-end S-Works Roubaix uses FACT 12r carbon, the same ultra-light material found in Specialized’s top-tier race bikes like the Tarmac SL8. Mid-tier models use FACT 10r or 9r carbon, offering an excellent balance of stiffness, comfort, and affordability.
Despite its comfort-focused design, the Roubaix doesn’t compromise on performance. Every frame is optimized for aerodynamics and power transfer, keeping it efficient on climbs and fast on descents — just like a race bike, but with added endurance comfort.
3. Weight Comparison: Roubaix vs. Other Endurance Bikes
How does the Roubaix compare to its top competitors? Here’s a quick look:
| Model | Approx. Weight | Key Feature |
|---|---|---|
| Specialized Roubaix | 14.8 – 19 lbs | Future Shock front suspension, FACT carbon frame |
| Trek Domane | 15.5 – 19 lbs | IsoSpeed comfort system, integrated storage |
| Cannondale Synapse | 16 – 19 lbs | SmartSense integrated lighting & radar |
The Roubaix sits right at the top in terms of weight-to-performance ratio. It’s lighter than most endurance bikes with similar comfort systems, making it a go-to choice for riders who want speed and comfort in one package.
4. How Weight Impacts the Roubaix’s Ride Feel
Even though the Roubaix isn’t the absolute lightest bike on the market, it’s one of the most balanced. Its moderate weight gives it:
- Stability on descents and rough roads.
- Predictable handling in corners and at high speed.
- Durability for long-distance or all-weather riding.
Unlike ultralight race bikes that can feel twitchy or harsh, the Roubaix delivers a smooth and controlled ride, even when the road gets unpredictable. That’s why many endurance cyclists — and even racers — prefer it for longer events or stage races with rough surfaces.
5. Is Lighter Always Better?
Not necessarily. While every cyclist loves a lighter bike, the Roubaix proves that comfort can make you faster. Over long distances, its Future Shock system and endurance geometry help you maintain speed and power for longer periods without fatigue. So even if it’s a pound heavier than a pure race bike, it often leads to faster, more consistent overall performance — especially over 60+ miles of riding.
FAQs
1. Does the Specialized Roubaix feel heavy when climbing?
Not at all. Thanks to its lightweight carbon frame and efficient power transfer, the Roubaix climbs almost like a race bike, even with its added comfort features.
2. Is the Roubaix lighter than the Trek Domane?
Yes, in most builds, the Roubaix is slightly lighter than the Domane, especially in the S-Works and Expert versions. However, both perform similarly in endurance conditions.
3. Can I make the Roubaix even lighter?
Yes. Upgrading to carbon wheels, a lighter saddle, or an electronic groupset like SRAM Red AXS can reduce weight by up to 1 lb without sacrificing comfort or performance.
Final Thoughts
So, how much does a Specialized Roubaix weigh? Depending on the model, between 14.8 and 19 pounds. That puts it among the lightest endurance bikes available today. More importantly, it’s engineered for real-world performance — where comfort, handling, and all-day speed matter more than just numbers on a scale. If you want a bike that feels fast, smooth, and effortless mile after mile, the Specialized Roubaix is hard to beat.
