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1842237 / 54294744072538

Product Details

Specialized Crux Comp Gravel Bike 2025

The Crux stands as the world's lightest gravel bike, boasting exceptional tire clearance and a performance gravel geometry. It goes beyond being the pinnacle of gravel performance; it serves as your exclusive passage to gravel enlightenment.

Unmatched Lightness: The S-Works 12r frame weighs merely 725g, while the 10r frame is a feather-light 825g. Leveraging the groundbreaking innovations from the Aethos, the Crux is a gravel bike that ascends effortlessly, glides over challenging terrain, all while tipping the scales at less than a full water bottle in your cage.

Impressive Capability: Featuring a tire clearance of 47c/650b x 2.1", the Crux opens up boundless possibilities. With tire clearance akin to the Diverge, the Crux is ready to tackle any terrain at full throttle.

Agile Responsiveness: Nimble, supple, and responsive—these are the characteristics that define the Crux. Its responsiveness at the pedals and suppleness in the saddle, combined with performance gravel geometry and a race-influenced fit inspired by its iconic history in 'cross, make it a true marvel.

Features
  • Frame: Crux FACT 10r Carbon, Rider First EngineeredTM, Threaded BB, 12x142mm thru-axle, flat-mount disc
  • Fork: S-Works FACT Carbon, 12x100mm thru-axle, flat-mount disc
  • Handlebars: Specialized Adventure Gear, 118.9mm drop x 70mm reach x 12o flare
  • Stem: 3D-forged alloy, 31.8mm, 7-degree rise
  • Tape: Supacaz Super Sticky Kush
  • Saddle: Body Geometry Power Sport, steel rails
  • Seat Binder Type: Seat Collar, KCNC, SPL-SC02-300-02, Extruded, 7075-T73, 30.0mm, 10B21, Black Zinc Bolt, Bolt Clamp
  • Front Brake: Shimano Disc Brake Assembled Set/J-kit Direct, GRX, BL-RX820(L), BR-RX820(F), for 140mm rotor, Resin Pad (w/o fin), XXX mm Hose(SM-BH90 Black), Bulk
  • Rear Brake: Shimano Disc Brake Assembled Set/J-kit Direct, GRX, ST-RX820(R), BR-RX820(R), W/O Adapter, for 25mm Mnt, Resin Pad (w/o fin), XXXX mm Hose(SM-BH90 Black), Bulk
  • Shift Levers: Included w/Brakes
  • Rear Derailleur: Shimano Rear Derailleur, RD-RX822, GRX, GS 12-Speed, Top Normal, Shadow Plus Design, Direct Attachment(Direct Mount Compatible), Bulk
  • Cassette: Shimano XT, 12-speed, 10-45t
  • Crankset: Shimano Front Chainwheel, FC-RX820-1, GRX, for Rear 12-Speed, Hollowtech 2, 40T w/o BB Parts, Bulk
  • Chainring: 40T
  • Bottom Bracket: Shimano Threaded BSA BB
  • Chain: Shimano XT M8100, 12-speed w/ quick link
  • Front Wheel: DT G540 Disc MS
  • Rear Wheel: DT G540 Disc MS
  • Front Tire: Pathfinder Pro 2BR, Tan Sidewall, 700x38
  • Rear Tire: Pathfinder Pro 2BR, Tan Sidewall, 700x38
  • Inner Tubes: Inner Tubes, Standard 48mm PV 700x28-38
  • Seatpost: Roval Terra Carbon Seat Post, 20mm Offset
  • Weight: 8.53kg (18 lb, 12.9 oz)
  • Weight Size: 56
Highlights
  • Featherweight Build: Crux is the world's lightest gravel bike with groundbreaking 725g (12r) and 825g (10r) frames, inheriting Aethos' weight-saving breakthroughs.
  • Generous Tire Clearance: Boasting 47c/650b x 2.1” tire clearance, the Crux excels with Diverge-level versatility, empowering riders to explore any terrain at full speed.
  • Dynamic Responsiveness: Nimble, supple, and responsive, the Crux offers a dream-like climbing experience, effortlessly floating over challenging terrains, thanks to its performance gravel geometry.
  • Tailored Geometry Options: Available in various sizes (49, 52, 54, 56, 58, 61), Crux provides a personalized fit with stack, reach, and other geometry specifications catering to diverse rider preferences.
Specifications
Model
Crux Comp
Bottom Bracket [Maker]
Shimano
Bottom Bracket Standard
BSA
Brakes [Kind]
Hydraulic Disc
Brakes [Maker]
Shimano
Brakes [Model]
GRX RX820
Cassette [Gearing]
10–45
Cassette [Maker]
Shimano
Cassette [Model]
XT
Chain [Maker]
Shimano
Chain [Model]
XT M8100
Chainring [Gearing]
40
Crank [Maker]
Shimano
Crank [Model]
GRX RX820
E-Bike
No
Family
Crux
Fork [Axle Type]
12x100mm Thru-Axle
Fork [Brake Type]
Disc
Fork [Maker]
Specialized
Fork [Material]
Carbon
Fork [Model]
S-Works FACT Carbon
Fork [Wheel Size]
700c
Frame [Hanger Standard]
UDH
Frame [Material]
Carbon
Frameset
No
Gearing [Configuration]
1x
Gearing [Kind]
Conventional
Gender
Unisex
Handlebar [Kind]
Drop
Handlebar [Maker]
Specialized
Handlebar [Shape]
Drop bar
RD [Maker]
Shimano
RD [Model]
GRX RX822
Saddle [Maker]
Specialized
Saddle [Material]
Steel
Seatpost [Kind]
Rigid
Seatpost [Maker]
Roval
Seatpost [Material]
Carbon
Shifters [Maker]
Shimano
Shifters [Model]
GRX RX820
Shifting
Mechanical
Stem [Clamp Diameter]
31.8
Stem [Material]
Aluminium
Suspension Configuration
Rigid
Tires [Maker]
Specialized
Wheels [Configuration]
Front+Rear
Wheels [Kinds]
Tubeless Ready
Wheelset [Maker]
DT Swiss
Wheelset [Material]
Aluminium
Wheelset [Model]
G540
Product code
1842237 / 54294744072538
Size Guide
Specialized Diverge Carbon Size Guide 2022

All measurements in mm unless otherwise stated.

Reviews
Rating 5 out of 5
5
Value of Product
4.5
Quality of Product
5
Rating 5 out of 5
Matt,
Verified purchaser

I wanted another cyclo X bike and after a lot of research I went for the Crux. It was the best value and best looking X bike I could find. I have ridden it on the road and gravel for many miles and so far very happy with it. I will look forward to the next cyclo X season where it will get a proper test.

Rating 5 out of 5
Dave o,
Verified purchaser

Fun bike with tyre cleareance up to 47mm and now with UDH hangers. Shimano 12 speed mechanical works faultlessly.

Shipping & Returns

Free UK delivery on orders over £50. Orders are dispatched within 1-2 working days and typically arrive 1-2 working days later.

Return unused items in their original packaging within 30 days of delivery. Return postage is £3.50.

Q & A

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About Specialized

Innovate or die.

Founded in California in 1974, Specialized began with a simple promise: serious riders deserve serious gear. Half a century later, the brand still funds its own wind tunnel, builds its own carbon, and tests every bike with the world's best so that you ride your own best.

The first production mountain bike. The first cycling-specific shoes. FACT carbon, the Win Tunnel, S-Works. Specialized has a habit of building the things the rest of cycling ends up copying.