Specialized S-Works Crux 5 Gravel Bike

The Fastest Gravel Race Bike Ever Made

The Specialized S-Works Crux 5 is the ultimate expression of performance in gravel racing. It is not only the lightest gravel bike in its category, but a platform developed to guarantee maximum real speed on any terrain.

Thanks to the combination of extreme lightness, advanced aerodynamics, and dynamic behavior derived from Specialized racing road bikes, the Crux 5 transforms every watt expressed by the cyclist into pure speed. Tested on real roads, with real riders, and in authentic race conditions, it offers the lowest "Time to Finish" ever achieved by a gravel bike.

When the goal is to stand on the top step of the podium, the S-Works Crux 5 represents the absolute benchmark in the world of gravel racing.

Record-Breaking Lightness

The S-Works Crux 5 FACT 12r Carbon frame weighs only 789 grams, making it one of the lightest gravel frames ever produced by Specialized.

Rider First Engineered™ technology ensures the perfect balance of stiffness, responsiveness, and comfort across every size, offering precise and high-performance handling during accelerations and on the most technical terrains.

Aerodynamics and Total Control

The Crux 5 adopts top-level components designed to maximize efficiency and control:

• Roval Terra Aero CLX ultra-light and aerodynamic wheels
• Integrated Roval Terra Cockpit
• SRAM RED XPLR AXS electronic 13-speed groupset
• Integrated Quarq power meter
• High-performance SRAM RED E1 hydraulic brakes

The result is an extremely fast, stable, and precise bike even on the most demanding gravel terrain.

Comfort and Gravel Racing Performance

Pathfinder 700x45 Tubeless Ready tires ensure high rolling efficiency and control on dirt roads, while the S-Works Power with Mirror saddle offers advanced comfort even during the longest endurance races.

With a total weight of only 7.1 kg in size 56, the S-Works Crux 5 is ready to dominate gravel races, long distances, and fast courses.

Technical Specifications

Frame

• S-Works Crux 5 FACT 12r Carbon
• Rider First Engineered™
• Threaded bottom bracket
• 12x142 mm thru-axle
• Flat-mount disc brakes
• UDH dropout

Fork

• S-Works FACT Carbon
• 12x100 mm thru-axle
• Flat-mount disc

Drivetrain

• Rear derailleur: SRAM RED AXS XPLR E1, 13-speed
• Shift levers: SRAM RED AXS E1 hydraulic disc
• Crankset: SRAM RED XPLR E1 with Quarq power meter, 40t
• Cassette: SRAM RED XPLR E1 10-46t, 13-speed
• Chain: SRAM RED E1
• Bottom bracket: Ceramic Speed BB Alpha, BSA DUB

Brakes

• Front brake: SRAM RED E1 hydraulic disc
• Rear brake: SRAM RED E1 hydraulic disc

Wheels and Tires

Front Wheel

• Roval Terra Aero CLX
• 27 mm internal width
• Tubeless Ready
• 50 mm profile
• 18 spokes
• Roval LF18-F hub with ceramic SINC bearings
• Centerlock disc
• Roval by ARRIS Composite Aero Spoke with titanium ends

Rear Wheel

• Roval Terra Aero CLX
• 27 mm internal width
• Tubeless Ready
• 45 mm profile
• 24 spokes
• Roval LF19-R hub with ceramic SINC bearings
• Centerlock disc
• Roval by ARRIS Composite Aero Spoke with titanium ends

Tires

• Front: Pathfinder 700x45 Tubeless Ready
• Rear: Pathfinder 700x45 Tubeless Ready

Inner Tubes

• 700x32-50 mm
• 60 mm Presta valve

Cockpit

• Handlebar: Roval Terra integrated handlebar/stem cockpit
• Stem: integrated into the cockpit
• Seatpost: S-Works Tarmac SL8 Carbon seat post, FACT Carbon, 15 mm offset
• Seat clamp: Integrated Wedge
• Saddle: S-Works Power with Mirror
• Handlebar tape: Supacaz Super Sticky Kush

Product Details

• Product ID: 294828
• Weight: 7.1 kg (size 56)

The Specialized S-Works Crux 5 is the ultimate bike for those seeking maximum performance in modern gravel racing: lightweight, aerodynamic, precise, and built to win.

Please Note

Technical specifications may change without notice based on component availability.
Product images are for illustrative purposes only and may not exactly reflect the described features.

Tackle every gravel race with maximum speed, lightness, and control thanks to the new Specialized S-Works Crux 5.

Do you want to receive your bike ready for use? Don't forget to add the bike assembly service at the time of purchase! Discover all the details here: Francesconi bike assembly

A Complete Guide to Bike Sizes

Foreword: Not all bike sizes are the same

Each type of bike has a specific frame and often uses a different size scale. For example, a road bike with a 54cm frame might be considered a medium size by one brand, but a large by another.

Bicycle adjustment margins

Some types of bikes, like gravel bikes, offer a wide range of adjustments, adapting to different body types. Other models, however, have limitations in this regard. This is an important aspect to consider.

How to use size charts

We've created a simple guide to help you find the right bike size:

1. Check out our size charts for each bike type.
2. Learn more with specific tips to help you make the right choice.

Size Charts: Find Your Perfect Bike

Gravel and road bikes

Sizes are based on the length of the top tube (in cm), which determines the reach of the bike.

For gravel, measurements may vary slightly due to different geometries, but remain similar.

Mountain bike

MTBs are measured in inches, based on the seat tube.

Sizes also vary depending on the type of MTB: full-suspension , hardtail or fat bike .

Children's bikes

The size depends on the size of the wheels, often associated with age:

What to do with half measures?

If you are between two sizes:

• Comfort : Choose the larger size.
• Performance : Go for the smaller size.

Final tips for choosing

1. Consult the manufacturer's instructions : Always check the brand's guidelines.
2. Ask an expert : a specialized workshop can help you choose based on your height, ideal reach and goals.
3. Test the bike : If possible, test the model you intend to purchase.