The Specialized Crux Comp is the gravel bike for riders who want to go beyond simple off-road paths and turn every ride into a real adventure. Born from the brand’s racing experience and the technical solutions of the legendary Aethos, it is one of the lightest gravel bikes in the world, capable of climbing like a pure road bike while also floating over the roughest terrain. The Crux carbon frame is designed to deliver the perfect balance between responsiveness and comfort: explosive when you push on the pedals, yet smooth enough to support you for hours on gravel roads, singletracks, and fast dirt sections. The Crux Comp build is aimed at riders seeking reliability and performance without compromise: a Shimano GRX 12-speed groupset that delivers smooth, precise shifting even in mud and dust, DT Swiss G540 Disc wheels that are robust and fast-rolling, and Specialized Pathfinder 700x40mm 2Bliss Ready tires that offer excellent grip and efficiency across a wide range of terrain. Whether you’re racing gravel events, embarking on a bikepacking trip, or exploring new backroads near home, the Crux Comp is your one-way ticket into the gravel world.
Crux Comp Key Features:
- Carbon gravel frame inspired by the Aethos: extremely lightweight, stiff where needed, and precise handling.
- Frame weight reference: 825 g (10r carbon), with technologies derived from the S-Works 12r frame at 725 g.
- Performance gravel geometry: responsive and fast riding position with racing DNA from cyclocross heritage.
- Generous tire clearance: compatible with up to 47c (700c) or 2.1” (650b) for maximum versatility across all terrain.
- Dynamic ride feel: agile and explosive on accelerations, yet comfortable over long distances.
- Shimano GRX 12-speed drivetrain: precise, reliable shifting designed specifically for gravel use.
- DT Swiss G540 Disc wheels: durable, off-road ready, and tubeless compatible.
- Specialized Pathfinder 700x40mm 2Bliss Ready tires: ideal balance between road efficiency and off-road traction.
- Race-oriented setup: designed for gravel racing, cyclocross, fast training rides, and exploration adventures.
- Built for heavy use: durable, reliable, and easy-to-maintain components.
Technical Specifications
Frame
- Crux FACT 10r Carbon
- Rider First Engineered™
- Threaded bottom bracket
- 12x142mm thru-axle
- Flat-mount disc brakes
- UDH dropout
Fork
- S-Works FACT Carbon
- 12x100mm thru-axle
- Flat-mount disc brakes
Brakes
- Front: Shimano GRX RX820
- Rear: Shimano GRX RX820
Drivetrain
- Crankset: Shimano GRX RX820 40T
- Rear derailleur: Shimano GRX RX822-GS, 12-speed
- Bottom bracket: Shimano BSA threaded
- Chain: Shimano XT M8100, 12-speed with quick link
- Cassette: Shimano XT, 12-speed, 10-45T
- Shifters: Shimano GRX ST-RX820
Wheels & Tires
- Front wheel: DT Swiss G540, 24mm internal width, tubeless ready, 24h, Specialized sealed bearing hub, Centerlock, DT Swiss Champion 14G spokes, brass nipples
- Rear wheel: DT Swiss G540, 24mm internal width, tubeless ready, 24h, Specialized sealed bearing hub, Centerlock, DT Swiss Champion 14G spokes, brass nipples
- Front tire: Pathfinder 700x40, Tubeless Ready
- Rear tire: Pathfinder 700x40, Tubeless Ready
- Inner tubes: Presta, 700x32–50mm
Cockpit
- Stem: 3D-forged alloy, 31.8mm, 7° rise
- Handlebar: Specialized Adventure Gear, 118.9mm drop x 70mm reach x 12° flare
- Bar tape: Supacaz Super Sticky Kush
- Saddle: Body Geometry Power Sport, steel rails
- Seatpost: Roval Terra Carbon Seat Post, 20mm offset
- Seat collar: Specialized Alloy, 30mm
Weight
- Size: 56
- Weight: 8.66 kg (19 lb, 1.5 oz)
Geometry
Key Measurements
- Crank length: 170 / 170 / 172.5 / 172.5 / 175 / 175
- Handlebar width: 380 / 400 / 420 / 420 / 440 / 440
- Stem length: 70 / 80 / 90 / 100 / 110 / 110
- Saddle width: 155 / 155 / 143 / 143 / 143 / 143
- Seatpost length: 330 / 330 / 330 / 380 / 380 / 380
Stack & Reach
- Stack: 530 / 547 / 560 / 578 / 598 / 621
- Reach: 375 / 382 / 388 / 397 / 405 / 415
Front End
- Head tube length: 100 / 115 / 130 / 147 / 167 / 190
- Head tube angle: 70.5° / 71.25° / 71.5° / 72° / 72.25° / 72.5°
- Fork length (full): 401 mm (all sizes)
- Fork rake / offset: 50 mm (all sizes)
- Trail: 74 / 69 / 67 / 64 / 62 / 60
Bottom Bracket & Rear
- BB height: 284 / 284 / 286 / 286 / 286 / 286
- BB drop: 74 / 74 / 72 / 72 / 72 / 72
- Chainstay length: 425 mm (all sizes)
- Front center: 594 / 600 / 608 / 618 / 630 / 644
- Wheelbase: 1008 / 1014 / 1023 / 1033 / 1045 / 1059
Frame
- Top tube (horizontal): 512 / 539 / 549 / 568 / 582 / 599
- Seat tube length: 466 / 496 / 521 / 546 / 576 / 606
- Seat tube angle: 75.5° / 74° / 74° / 73.5° / 73.5° / 73.5°
- Standover height: 749 / 772 / 794 / 816 / 841 / 866
The Specialized Crux Comp is the gravel bike for riders who want to go beyond simple off-road paths and turn every ride into a real adventure. Born from the brand’s racing experience and the technical solutions of the legendary Aethos, it is one of the lightest gravel bikes in the world, capable of climbing like a pure road bike while also floating over the roughest terrain. The Crux carbon frame is designed to deliver the perfect balance between responsiveness and comfort: explosive when you push on the pedals, yet smooth enough to support you for hours on gravel roads, singletracks, and fast dirt sections. The Crux Comp build is aimed at riders seeking reliability and performance without compromise: a Shimano GRX 12-speed groupset that delivers smooth, precise shifting even in mud and dust, DT Swiss G540 Disc wheels that are robust and fast-rolling, and Specialized Pathfinder 700x40mm 2Bliss Ready tires that offer excellent grip and efficiency across a wide range of terrain. Whether you’re racing gravel events, embarking on a bikepacking trip, or exploring new backroads near home, the Crux Comp is your one-way ticket into the gravel world.
Crux Comp Key Features:
- Carbon gravel frame inspired by the Aethos: extremely lightweight, stiff where needed, and precise handling.
- Frame weight reference: 825 g (10r carbon), with technologies derived from the S-Works 12r frame at 725 g.
- Performance gravel geometry: responsive and fast riding position with racing DNA from cyclocross heritage.
- Generous tire clearance: compatible with up to 47c (700c) or 2.1” (650b) for maximum versatility across all terrain.
- Dynamic ride feel: agile and explosive on accelerations, yet comfortable over long distances.
- Shimano GRX 12-speed drivetrain: precise, reliable shifting designed specifically for gravel use.
- DT Swiss G540 Disc wheels: durable, off-road ready, and tubeless compatible.
- Specialized Pathfinder 700x40mm 2Bliss Ready tires: ideal balance between road efficiency and off-road traction.
- Race-oriented setup: designed for gravel racing, cyclocross, fast training rides, and exploration adventures.
- Built for heavy use: durable, reliable, and easy-to-maintain components.
Technical Specifications
Frame
- Crux FACT 10r Carbon
- Rider First Engineered™
- Threaded bottom bracket
- 12x142mm thru-axle
- Flat-mount disc brakes
- UDH dropout
Fork
- S-Works FACT Carbon
- 12x100mm thru-axle
- Flat-mount disc brakes
Brakes
- Front: Shimano GRX RX820
- Rear: Shimano GRX RX820
Drivetrain
- Crankset: Shimano GRX RX820 40T
- Rear derailleur: Shimano GRX RX822-GS, 12-speed
- Bottom bracket: Shimano BSA threaded
- Chain: Shimano XT M8100, 12-speed with quick link
- Cassette: Shimano XT, 12-speed, 10-45T
- Shifters: Shimano GRX ST-RX820
Wheels & Tires
- Front wheel: DT Swiss G540, 24mm internal width, tubeless ready, 24h, Specialized sealed bearing hub, Centerlock, DT Swiss Champion 14G spokes, brass nipples
- Rear wheel: DT Swiss G540, 24mm internal width, tubeless ready, 24h, Specialized sealed bearing hub, Centerlock, DT Swiss Champion 14G spokes, brass nipples
- Front tire: Pathfinder 700x40, Tubeless Ready
- Rear tire: Pathfinder 700x40, Tubeless Ready
- Inner tubes: Presta, 700x32–50mm
Cockpit
- Stem: 3D-forged alloy, 31.8mm, 7° rise
- Handlebar: Specialized Adventure Gear, 118.9mm drop x 70mm reach x 12° flare
- Bar tape: Supacaz Super Sticky Kush
- Saddle: Body Geometry Power Sport, steel rails
- Seatpost: Roval Terra Carbon Seat Post, 20mm offset
- Seat collar: Specialized Alloy, 30mm
Weight
- Size: 56
- Weight: 8.66 kg (19 lb, 1.5 oz)
Geometry
Key Measurements
- Crank length: 170 / 170 / 172.5 / 172.5 / 175 / 175
- Handlebar width: 380 / 400 / 420 / 420 / 440 / 440
- Stem length: 70 / 80 / 90 / 100 / 110 / 110
- Saddle width: 155 / 155 / 143 / 143 / 143 / 143
- Seatpost length: 330 / 330 / 330 / 380 / 380 / 380
Stack & Reach
- Stack: 530 / 547 / 560 / 578 / 598 / 621
- Reach: 375 / 382 / 388 / 397 / 405 / 415
Front End
- Head tube length: 100 / 115 / 130 / 147 / 167 / 190
- Head tube angle: 70.5° / 71.25° / 71.5° / 72° / 72.25° / 72.5°
- Fork length (full): 401 mm (all sizes)
- Fork rake / offset: 50 mm (all sizes)
- Trail: 74 / 69 / 67 / 64 / 62 / 60
Bottom Bracket & Rear
- BB height: 284 / 284 / 286 / 286 / 286 / 286
- BB drop: 74 / 74 / 72 / 72 / 72 / 72
- Chainstay length: 425 mm (all sizes)
- Front center: 594 / 600 / 608 / 618 / 630 / 644
- Wheelbase: 1008 / 1014 / 1023 / 1033 / 1045 / 1059
Frame
- Top tube (horizontal): 512 / 539 / 549 / 568 / 582 / 599
- Seat tube length: 466 / 496 / 521 / 546 / 576 / 606
- Seat tube angle: 75.5° / 74° / 74° / 73.5° / 73.5° / 73.5°
- Standover height: 749 / 772 / 794 / 816 / 841 / 866
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