2026 Specialized Crux Expert Shimano GRX Di2 Features
"The Crux is the lightest gravel bike in the world, with the exceptional capability of massive tire clearance and performance gravel geometry. It’s not just the ultimate expression of gravel performance, it’s your one-way ticket to gravel enlightenment.
This Crux Expert comes spec'd with Shimano’s
GRX Di2 1x12 800 Series hydraulic disc groupset with wireless shifting, lightweight and durable Roval Terra C Disc wheels, and 2Bliss Ready, 700x40mm Pathfinder tires that hookup over nasty terrain."
At a Glance
- Lightest: 725g S-Works 12r and 825g 10r frames. We took the revolutionary breakthroughs that made Aethos the lightest bike ever and applied them to the Crux. The result? A gravel bike that climbs like a dream, floats over nightmarish terrain, and weighs less than a full bottle in your cage.
- Capable: 47c/650b x 2.1” tire clearance. More clearance means more capability. With Diverge-level tire clearance, Crux takes you anywhere you can imagine, at full gas.
- Responsive: Nimble, supple, and reactive. Responsive at the pedals. Supple in the saddle. With performance gravel geometry and race-influenced fit inspired by Crux’s iconic history in ‘cross.
Component Specifications
| Frame | Crux FACT 10r Carbon, Rider First Engineered™, Threaded BB, 12x142mm thru-axle, flat-mount disc, UDH dropout |
| Seat Binder | Specialized Alloy, 30mm |
| Fork | S-Works FACT Carbon, 12x100mm thru-axle, flat-mount disc |
| Shift Levers | Shimano GRX Di2 RX825 |
| Rear Derailleur | NEW Shimano GRX Di2 1x12sp RX827 |
| Cassette | Shimano Deore XT, 10-51t |
| Chain | Shimano XT M8100, 12-speed w/ quick link |
| Crankset | Shimano GRX RX820, 40t |
| Bottom Bracket | Shimano Threaded BSA BB |
| Front Tire | Pathfinder 700x40, Tubeless Ready |
| Rear Tire | Pathfinder 700x40, Tubeless Ready |
| Inner Tubes | Presta, 700x32-50mm |
| Front Brake | Shimano GRX 800, Hydraulic Disc |
| Rear Brake | Shimano GRX 800, Hydraulic Disc |
| Stem | Specialized Pro SL, alloy, 4-bolt |
| Handlebars | Specialized Adventure Gear, 118.9mm drop x 70mm reach x 12º flare |
| Saddle | Body Geometry Power Expert |
| Seatpost | Roval Terra Carbon Seat Post, 20mm Offset |
2026 Specialized Crux Expert Shimano GRX Di2
| Bike/Frame Size | 49 | 52 | 54 | 56 | 58 | 61 |
|---|---|---|---|---|---|---|
| Stack | 530 mm | 547 mm | 560 mm | 578 mm | 598 mm | 621 mm |
| Reach | 375 mm | 382 mm | 388 mm | 397 mm | 405 mm | 415 mm |
| Chainstay Length | 425 mm | 425 mm | 425 mm | 425 mm | 425 mm | 425 mm |
| Wheelbase | 1008 mm | 1014 mm | 1023 mm | 1033 mm | 1045 mm | 1059 mm |
| Top Tube Length, Horizontal | 512 mm | 539 mm | 549 mm | 568 mm | 582 mm | 599 mm |
| Bike Standover Height | 749 mm | 772 mm | 794 mm | 816 mm | 841 mm | 866 mm |
| Seat Tube Length | 466 mm | 496 mm | 521 mm | 546 mm | 576 mm | 606 mm |
| Seat Tube Angle | 75.5° | 74° | 74° | 73.5° | 73.5° | 73.5° |
| Head Tube Length | 100 mm | 115 mm | 130 mm | 147 mm | 167 mm | 190 mm |
| Head Tube Angle | 70.5° | 71.25° | 71.5° | 72° | 72.25° | 72.5° |
| BB Height | 284 mm | 284 mm | 286 mm | 286 mm | 286 mm | 286 mm |
| BB Drop | 74 mm | 74 mm | 72 mm | 72 mm | 72 mm | 72 mm |
| Trail | 74 mm | 69 mm | 67 mm | 64 mm | 62 mm | 60 mm |
| Fork Length, Full | 401 mm | 401 mm | 401 mm | 401 mm | 401 mm | 401 mm |
| Fork Rake/Offset | 50 mm | 50 mm | 50 mm | 50 mm | 50 mm | 50 mm |
| Front Center | 594 mm | 600 mm | 608 mm | 618 mm | 630 mm | 644 mm |
Size Guide: 2026 Specialized Crux Expert Shimano GRX Di2
