Specialized Crux Expert Gravel Bike | SRAM Rival XPLR AXS 12v | FACT 10r Carbon | Roval Terra C Wheels
Discover the Specialized Crux Expert, the lightest gravel bike in the world, designed to dominate dirt trails with race-level performance, responsive geometry, and maximum versatility. With a FACT 10r carbon frame weighing only 825 grams, the Crux Expert represents the pinnacle of Specialized's gravel technology: light on climbs, stable on descents, agile everywhere.
Equipped with the new wireless electronic SRAM Rival XPLR AXS 12v groupset, this gravel bike offers fast and precise shifting, along with powerful and modulated braking thanks to hydraulic disc brakes. Completing the package are the Roval Terra C Disc carbon wheels and the Pathfinder Pro 2Bliss Ready 700x40mm tires, ideal for technical off-road and fast pavement.
Why choose the Specialized Crux Expert?
Extreme lightness: FACT 10r carbon frame weighing 825 g, inspired by the legendary Aethos
Off-road capability: Tire clearance up to 47c or 650b x 2.1", for maximum versatility on any terrain
Gravel performance geometry: Responsive and comfortable, optimized for long distances and technical off-road
SRAM Rival XPLR AXS electronic drivetrain: Wireless reliability and precision
Premium components: Roval carbon wheels, Terra Carbon seatpost, Body Geometry Power Expert saddle
Technical Specifications – Specialized Crux Expert
Frame & Suspension
Frame: Crux FACT 10r Carbon, Rider First Engineered™, threaded BB, 12x142mm, flat mount disc, UDH dropout
Fork: S-Works FACT Carbon, 12x100mm, flat mount disc
Brakes
Front: SRAM Rival AXS E1, hydraulic disc brake, 160 mm rotor
Rear: SRAM Rival AXS E1, hydraulic disc brake, 160 mm rotor
Drivetrain
Shift/brake levers: SRAM Rival AXS E1 HRD
Rear derailleur: SRAM Rival XPLR AXS E1
Cassette: SRAM Rival XPLR XG-1351, 13-speed, 10-46T
Chain: SRAM Rival E1
Crankset: SRAM Rival XPLR E1
Bottom bracket: SRAM DUB BSA
Chainring: 40T
Wheels & Tires
Wheels: Roval Terra C, 25 mm carbon rim (internal), 32 mm depth, DT 370 hubs, 24 DT Swiss Comp Race spokes
Tires: Pathfinder Pro 700x40, Tubeless Ready
Inner tubes: Presta, 700x32-50 mm
Cockpit & Components
Handlebar: Specialized Adventure Gear, 118.9 mm drop, 70 mm reach, 12° flare
Stem: Specialized Pro SL aluminum, 4 bolts
Handlebar tape: Supacaz Super Sticky Kush
Saddle: Body Geometry Power Expert
Seatpost: Roval Terra Carbon, 20 mm offset
Seat collar: Specialized Alloy, 30 mm diameter
Size & Weight
Note Well
Technical specifications may change without notice depending on component availability.
Product images are purely indicative and may not exactly reflect the described features.
Perfect for Extreme Gravel
The Crux Expert is designed for those who want to push the limits of gravel. Thanks to its lightness, generous tire clearance, and reliable electronic drivetrain, it is the ideal companion for gravel races, off-road adventures, or high-performance bikepacking.
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:
- Check out our size charts for each bike type.
- 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.
Cut
|
Recommended height
|
Horizontal tube length
|
XS |
Up to 157 cm |
48-50 cm |
S |
157-167 cm |
50-53 cm |
M |
168-178 cm |
53-56 cm |
THE |
178-185 cm |
56-58 cm |
XL |
Over 185cm |
58-62 cm |
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.
Cut
|
Recommended height
|
Size (in inches)
|
XS |
Up to 157 cm |
14"-16" |
S |
157-167 cm |
15"-17" |
M |
168-178 cm |
16"-19" |
THE |
178-185 cm |
18"-20" |
XL |
Over 185cm |
20"-23" |
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:
Age
|
Wheel Size
|
1-3 years |
12" |
2-4 years |
14" |
4-6 years |
16" |
5-8 years |
20" |
8-10 years |
24" |
Over 10 years |
26"/27.5" |
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
-
Consult the manufacturer's instructions : Always check the brand's guidelines.
-
Ask an expert : a specialized workshop can help you choose based on your height, ideal reach and goals.
-
Test the bike : If possible, test the model you intend to purchase.