Specialized Crux Comp bicycle – The lightest and highest performing gravel bike in the world
The Specialized Crux Comp bicycle is the ultimate expression of gravel performance: ultralight weight, Shimano GRX 1x12 drivetrain, ample tire clearance and reactive geometry. It is designed to push beyond limits, on any terrain, with exceptional handling and responsiveness.
Perfect for those looking for a lightweight, fast, and technical gravel bike, ready for anything: from races to the most extreme off-road routes.
Strengths
The lightest in the world in its category: FACT 10r frame weighing only 825 grams
Gravel Performance geometry inspired by cyclocross for agile and precise handling
Wide tire clearance: compatible with tires up to 47c or 650b x 2.1"
Shimano GRX RX820 1x12 components with 40T crankset
DT Swiss G540 Disc wheels sturdy, tubeless ready and ready for any adventure
Pathfinder Pro 700x38 tires for traction and comfort on mixed terrain
Total weight: 8.55 kg in size 56
Technical Specifications
Frame and Suspension
Frame: Crux FACT 10r Carbon, Rider First Engineered™, threaded BSA bottom bracket, 12x142 mm thru-axle, flat mount disc brake mount, UDH dropout
Fork: S-Works FACT Carbon, 12x100 mm, flat mount disc
Brakes
Drivetrain
Shift levers: Shimano GRX RX820, 1x12 speed
Rear derailleur: Shimano GRX RX822-GS, 12 speed
Cassette: Shimano XT, 12 speed, 10-45t
Chain: Shimano XT M8100, 12 speed, with quick link
Crankset: Shimano GRX RX820
Front gear: 40T
Bottom bracket: Shimano threaded BSA
Wheels and Tires
Front wheel: DT Swiss G540, 24 mm internal width, tubeless ready, 24 spokes, Specialized sealed bearing hub, centerlock disc, DT Swiss Champion stainless steel spokes, DT Swiss brass nipples
Rear wheel: DT Swiss G540, same specs as front
Tires: Pathfinder Pro 2Bliss Ready, Tan Sidewall, 700x38 mm (front and rear)
Inner tube: 700x28/38 mm, 48 mm Presta valve
Cockpit and Components
Handlebar: Specialized Adventure Gear, 118.9 mm drop, 70 mm reach, 12° flare
Handlebar stem: 3D forged alloy, 31.8 mm diameter, 7° rise
Handlebar tape: Supacaz Super Sticky Kush
Saddle: Body Geometry Power Sport with steel rails
Seatpost: Roval Terra Carbon, 20 mm offset
Seat collar: Specialized Alloy, 30 mm
Additional details
Note Well
Technical specifications may change without notice depending on component availability.
Product images are for illustrative purposes only and may not exactly reflect the described features.
If you're looking for a bike ready for competitions, epic adventures, or long explorations, the Specialized Crux Comp is your ideal companion. Discover what total freedom on two wheels means.
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.
