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Specialized made the Crux Cyclocross Bike, the lightest gravel bike in the world, even lighter.
Specialized made the Crux Cyclocross Bike, the lightest gravel bike in the world, even lighter.
Specialized

Custom Build: S-Works Crux Ultegra Di2 Gravel Bike - Satin Carbon 54cm

£7,999.00 £9,500.00 16% off
Pre-Order

With Pre-Order, you can purchase the latest items added to our store in advance of them arriving with us.

Your Pre-Order is prioritised (at no additional charge); meaning that as soon as the product arrives with us, we can wrap it straight back up; ready for collection via Click & Collect or despatch to you — it often never even hits the stock room shelves!

Pre-Launch

With Pre-Launch, the date when we expect to receive the product ourselves is still a little too hazy to be confident in accepting Pre-Orders.

So, instead, you can submit your email address against the item you are interested in and we will email you as soon as stock arrives on the system.

Estimated Delivery & Collection Dates

Estimated Delivery & Collection Dates are given on Pre-Order and Pre-Launch products. They are for indication purposes only and can change at any time without notice.

The dates we provide are based on indications given by our suppliers. Whenever we get updated information from our suppliers we will endeavour to update the Estimated Delivery & Collection Dates provided on product pages.

We estimate this will be ready for despatch to you or collection via Click & Collect on Undetermined

Custom Build: S-Works Crux Ultegra Di2 Gravel Bike - Satin Carbon 54cm

Season:2025

Brand:Specialized

Code:71425-7754 CUSTOM 3747V

Specialized Crux: The World's Lightest Gravel Bike

Specialized made the Crux Cyclocross Bike, the lightest gravel bike in the world, even lighter. With unmatched massive tyre clearance and performance gravel geometry, it stands as the pinnacle of gravel performance, a one-way ticket to gravel enlightenment.

Lightest Frame: 725g S-Works 12r

Leveraging the breakthroughs that made the Aethos the lightest bike ever, the Crux now climbs effortlessly, glides over rugged terrain, and weighs less than a full water bottle.

Massive Tyre Clearance: 47c/650b x 2.1”

With Diverge-level tyre clearance, the Crux offers unparalleled capability, taking you to any destination at full speed.

Responsive Geometry

Designed with nimble, supple, and reactive performance in mind, the Crux's race-influenced fit ensures responsiveness at the pedals and comfort in the saddle.

Equipped with UDH and Shimano Ultegra Di2

Now featuring a Universal Derailleur Hanger (UDH) and built with Shimano Ultegra Di2. Shimano Ultegra Di2 delivers cutting-edge electronic shifting technology with the perfect balance of performance, efficiency, and value. Trusted by serious road cyclists and racers, Ultegra Di2 electronic groupsets provide lightning-fast, precise gear changes, exceptional reliability, and advanced ergonomics. Combining pro-level innovation from Shimano Dura-Ace Di2 with a more accessible price point, Shimano Ultegra Di2 road bike groupsets are the ultimate choice for riders who demand race-ready performance on every ride.

The new Specialized Crux Gravel Bike is the epitome of gravel bike innovation, promising unparalleled performance and resilience.

Technical Information
  • Frame
    S-Works Crux FACT 12r Carbon, Rider First Engineered™, Threaded BB, 12x142mm thru-axle, flat-mount disc
  • Fork
    S-Works FACT Carbon, 12x100mm thru-axle, flat-mount disc
  • Seat Binder
    Specialized Alloy, 30.0mm, titanium bolt
  • Seatpost
    Roval Alpinist Carbon Seatpost
  • Saddle
    S-Works Power Body Geometry 155mm
  • Handlebars
    Roval Terra, carbon, 103mm drop x 70mm reach x 12º flare
  • Stem
    S-Works SL Stem w/titanium bolts
  • Tape
    Supacaz Super Sticky Kush
  • Front Brake
    Shimano Ultegra R8150
  • Rear Brake
    Shimano Ultegra R8150
  • Chain
    Shimano Ultegra 12 Speed
  • Cassette
    Shimano R8101 12 Speed 11-34t
  • Bottom Bracket
    Shimano British Thread
  • Crankset
    Shimano R8100 46/33t
  • Shift Levers
    Shimano Ultegra R8170 Di2
    Front Derailleur
    Shimano Ultegra R8150 Di2
  • Rear Derailleur
    Shimano Ultegra R8150 Di2 12 Speed
  • Chainrings
    46-33t
  • Front Tyre
    Pathfinder Pro 2BR, 700x38
  • Rear Tyre
    Pathfinder Pro 2BR, 700x38
  • Front Wheel
    Roval Terra CL, 25mm internal width, 32mm depth, 24h, Tubeless ready, DT for Roval 350 hub, Centerlock disc, DT Swiss Competition Race spokes
  • Rear Wheel
    Roval Terra CL, 25mm internal width, 32mm depth, 24h, Tubeless ready, DT for Roval 350 hub, Centerlock disc, DT Swiss Competition Race spokes
As with any product, specification is subject to change without prior notification. You are advised to confirm current specification before buying. Please note that this bike does not come with pedals.
Sizing Information

SIZING

Size in ft4'11" - 5'2"5'2" - 5'5"5'4" - 5'6"5'6" - 5'9"5'9" - 6'0"6'0" - 6'3"6'3" - 6'6"
Size in cm150 - 158cm158 - 165cm163 - 168cm168 - 175cm175 - 183cm183 - 191cm191 - 198cm
Bike Size46495254565861

GEOMETRY

Size49cm52cm54cm56cm58cm61cm
BB Drop74mm74mm72mm72mm72mm72mm
BB Height284mm284mm286mm286mm286mm286mm
Bike Standover Height749mm772mm794mm816mm841mm866mm
Chainstay Length425mm425mm425mm425mm425mm425mm
Fork Length, Full401mm401mm401mm401mm401mm401mm
Fork Rake/Offset50mm50mm50mm50mm50mm50mm
Front Centre594mm600mm608mm618mm630mm644mm
Head Tube Angle70.5°71.25°71.25°72°72.25°72.5°
Head Tube Length100mm115mm130mm147mm167mm190mm
Reach375mm382mm388mm397mm405mm415mm
Seat Tube Angle75.5°74°74°73.5°73.5°73.5°
Seat Tube Length466mm496mm521mm546mm576mm606mm
Stack530mm547mm560mm578mm598mm621mm
Top Tube Length, Horizontal512mm539mm549mm568mm582mm599mm
Trail74mm69mm67mm64mm62mm60mm
Wheelbase1008mm1014mm1023mm1033mm1045mm1059mm
Crank Length165mm170mm172.5mm172.5mm175mm175mm
Handlebar Width380mm400mm420mm420mm440mm440mm
Stem Length70mm80mm90mm100mm110mm110mm
Saddle Width155mm155mm143mm143mm143mm143mm
Seatpost Length300mm300mm300mm360mm360mm360mm
Professional Opinion
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