Specialized Crux Expert 2026 - Shimano GRX Di2
The Specialized Crux Expert is a lightweight carbon gravel bike designed for racing, fast mixed-surface riding and long-distance events. Its FACT 10r carbon frame is paired with Shimano GRX Di2 electronic shifting, Roval Terra C carbon wheels and 40c Pathfinder tyres. At a claimed 7.95kg in size 56, it delivers responsive climbing, precise handling and confident performance across changing terrain.
Lightweight FACT 10r Carbon Frame
The FACT 10r carbon frame has a claimed weight of approximately 825g, providing an exceptionally light foundation for a complete gravel bike. Reduced frame weight makes the Crux easier to accelerate, carry through run-ups and drive over repeated climbs.
Rider-First Engineered construction tunes the carbon lay-up for each frame size, helping preserve consistent handling, stiffness and ride quality throughout the range.
Responsive Gravel Handling
The Crux combines a race-influenced riding position with quick handling and predictable stability. It responds immediately to changes in pace and direction while remaining composed across loose corners, corrugations and fast gravel descents.
A relatively low stack creates an efficient position for faster riding, while the frame geometry distributes the rider’s weight to provide confident front-wheel control.
Shimano GRX Di2 1x12 Shifting
Shimano GRX Di2 provides fast and precise electronic shifting through controls designed specifically for drop-bar gravel riding. The 1x12 configuration keeps gear selection simple while removing the weight and mechanical complexity of a front derailleur.
A wide-range 10–51T cassette provides suitable gearing for steep gravel climbs, while the GRX RX827 rear derailleur helps maintain consistent shifting across rough surfaces and under harder pedalling loads.
Roval Terra C Carbon Wheels
Roval Terra C wheels use 32mm-deep carbon rims with a 25mm internal width. This reduces rotating weight while providing stable support for high-volume gravel tyres.
Dependable DT Swiss 370 hubs and DT Swiss Competition Race spokes make the wheels suitable for regular training, racing and long-distance riding. Their tubeless-ready construction also allows lower pressures for improved comfort, grip and puncture protection once converted.
S-Works FACT Carbon Fork
The S-Works FACT carbon fork helps reduce overall weight while improving steering accuracy and front-end comfort. Its carbon construction absorbs some of the vibration generated by rough gravel without making the steering feel vague.
A 12 x 100mm thru-axle provides accurate wheel positioning, while the flat-mount brake interface creates a clean and modern setup.
Generous Tyre Clearance
The Crux frame accepts tyres up to 700 x 47c or 650b x 2.1 inches. This gives riders the freedom to choose faster tyres for racing or greater volume for rougher gravel and adventure riding.
The supplied 700 x 40c Pathfinder tyres provide an effective balance of rolling speed, cushioning and mixed-surface traction.
Key Features
- Specialized Crux FACT 10r carbon frame
- Claimed frame weight of approximately 825g
- S-Works FACT carbon fork
- Rider-First Engineered construction
- Shimano GRX Di2 electronic 1x12-speed drivetrain
- Shimano GRX RX827 rear derailleur
- Shimano XT 10–51T cassette
- Shimano GRX RX820 crankset with 40T chainring
- Shimano GRX 800 hydraulic disc brakes
- Roval Terra C carbon wheels
- DT Swiss 370 hubs
- Specialized Pathfinder 700 x 40c tubeless-ready tyres
- Clearance for up to 700 x 47c or 650b x 2.1-inch tyres
- Roval Terra carbon seatpost
- Body Geometry Power Expert saddle with titanium rails
- Threaded bottom bracket
- SRAM UDH-compatible dropout
- Claimed complete-bike weight: 7.95kg in size 56
Why Riders Love the Specialized Crux Expert
The Specialized Crux Expert suits riders who want a genuinely lightweight gravel bike with electronic shifting and carbon wheels already included. It offers a complete race-ready package while retaining the tyre clearance and comfort needed for long-distance riding and rougher terrain.
Exceptional Low Weight
The 825g FACT 10r frame and 7.95kg complete-bike weight give the Crux quick acceleration and lively climbing performance.
Precise Electronic Shifting
Shimano GRX Di2 provides consistent gear changes with minimal lever effort, helping the rider maintain cadence and concentration during demanding events.
Wide Climbing Range
The 10–51T cassette supplies low gearing for steep gradients, loose surfaces and long climbs without requiring a front derailleur.
Responsive Carbon Wheels
Roval Terra C wheels reduce rotating weight, improving acceleration and making the bike feel more responsive during repeated changes of pace.
Confident Handling
Race-focused geometry combines quick steering with the stability needed for loose gravel, technical descents and high-speed riding.
Adaptable Tyre Capacity
Clearance for 47c or 650b x 2.1-inch tyres allows the Crux to be adapted for racing, rough gravel or more adventurous routes.
Premium Contact Points
The Roval carbon seatpost and titanium-railed Power Expert saddle help reduce weight and improve comfort during longer rides.
Who Is This Bike For?
Perfect For
✔ Competitive gravel racing
✔ Fast mixed-surface events
✔ Hilly and climbing-focused routes
✔ Long-distance gravel riding
✔ Riders wanting Shimano GRX Di2
✔ Riders wanting carbon wheels as standard
✔ Riders seeking a lightweight race bike without S-Works pricing
Our Thoughts on the Specialized Crux Expert
The Specialized Crux Expert is one of the strongest complete builds in this generation of the Crux range. Its FACT 10r carbon frame and S-Works carbon fork provide an exceptionally light and responsive foundation, while the supplied components require few immediate upgrades.
Shimano GRX Di2 is particularly well suited to riders who want precise electronic shifting and a wide climbing range. The 10–51T cassette provides lower gearing than many gravel race drivetrains, making this model useful for steep routes, long events and rides where fatigue can make gearing especially important.
Roval Terra C carbon wheels provide a meaningful performance improvement over alloy wheels by reducing rotating weight and sharpening acceleration. For riders wanting a lightweight, race-ready Crux with Shimano electronic shifting, the Expert is an exceptionally well-balanced option.
Why Buy from Chain Reaction?
✔ Official Specialized Dealer
✔ Professionally assembled, safety checked and workshop tuned before collection or dispatch
✔ Brakes professionally pre-bedded before collection or dispatch
✔ Shimano GRX Di2 drivetrain checked, updated and configured
✔ Premium handover including initial bike setup, a complete feature walkthrough and practical maintenance advice
✔ Expert bike sizing and setup advice
✔ Lifetime workshop support from experienced mechanics
✔ Nationwide New Zealand delivery
✔ Finance and WorkRide options available
Geometry
The Crux uses a race-influenced position with a relatively low stack, so correct frame sizing and cockpit setup are especially important.
Contact Chain Reaction if you would like help comparing sizes or choosing a position suited to racing, long-distance events or general gravel riding.
Size Guide
Rider height is a useful starting point, but body proportions, flexibility, preferred riding position and handling preferences can influence the ideal size. Riders focused on racing may prefer a lower and more compact position, while long-distance riders may prioritise comfort.
Contact Chain Reaction for personalised sizing and bike-fit advice before ordering.
Delivery and Assembly
Every Specialized Crux Expert purchased from Chain Reaction is professionally assembled, tuned and safety checked by our workshop.
Your bike receives:
- Complete professional assembly
- Full workshop safety inspection
- Shimano GRX Di2 adjustment, firmware check and electronic setup
- Gear adjustment and drivetrain tuning
- Brakes professionally pre-bedded using our Sinter Smart bedding-in machine
- Cockpit and seatpost installation checked
- Handlebar, saddle and control positions initially adjusted
- Tyre pressures checked and set
- Secure packaging for transport
- Nationwide New Zealand delivery
- Click & Collect where available
For nationwide delivery, the bike is securely packaged following its workshop inspection. Some minor final assembly is required after unpacking. Instructions are included, and the Chain Reaction team is available if assistance is needed.
Specifications are based on manufacturer information and may change without notice. Complete-bike and frame weights may vary according to size, colour and production tolerances.