Colnago has pulled the covers off a brand-new gravel bike. Launched on 7 October 2026, the G5-X replaces the outgoing G4-X and repositions the Italian marque’s dirt machine as an out-and-out race bike — one aimed squarely at events like The Traka, Unbound, and the GranGuanche Audax. Prices start at £5,299.99 and climb to a halo-level £9,999.99, and the headline features are a cleverly hidden storage compartment, genuinely gravel-specific geometry, and a tyre clearance figure that is more measured than you might expect.
For another look at where fast gravel is heading, see Look’s new G85 Cezal RS, a race-focused frame that trims a claimed 200g and ramps up frame stiffness.
What Colnago Just Launched
The G5-X is a carbon-framed gravel racer built around a new layup that Colnago describes as “responsive yet compliant.” It ships with 700 × 50 mm tyres and offers clearance up to 53 mm — notably, that’s less than some of the balloon-tyred adventure rigs on the market. The message is clear: this is a bike designed to go fast on mixed terrain, not to tackle bikepacking singletrack.
Three builds are offered, all running SRAM’s electronic XPLR AXS groupsets. The flagship SRAM Red XPLR AXS E1 costs £9,999.99 and rolls on Zipp 303 XPLR SW wheels. The mid-tier Force XPLR drops to £6,299.99 on Vision TC45 carbon wheels, and the entry SRAM Rival XPLR comes in at £5,299.99, also on Vision TC45s but with a Deda alloy handlebar in place of the carbon cockpit. US and European pricing is still to be confirmed.
Why This Launch Matters
Gravel racing has quietly become one of the most competitive corners of the bike industry, and brands are racing to build frames that behave more like road bikes on the limit while still coping with rough ground. Colnago’s pitch with the G5-X is that you can’t simply shrink a road bike and bolt on bigger tyres — the geometry has to be rethought from the ground up. Reviewers who rode it early have described it as “a V5Rs for the dirt,” a nod to Colnago’s top-tier road racer.
The restrained 53 mm clearance is itself a statement. Where some rivals chase ever-wider rubber, Colnago is betting that most gravel racers rarely need more than 50 mm, and that a tighter rear end helps the bike feel sharp. Whether that’s the right call will depend on the courses you ride — which is exactly the kind of trade-off worth weighing before you buy.
The Standout Features
Hidden in-frame storage. The biggest practical upgrade over the G4-X is a storage compartment integrated into the down tube, big enough for a spare inner tube, a CO2 inflator, and a few tools, and sealed against mud and water. It’s a feature borrowed from mountain bikes and increasingly common on gravel race frames, and it means you can ditch a saddle bag without going without essentials.
Gravel-specific geometry. The head tube angle ranges from 70.5° to 71.5° depending on size — slacker than the G4-X — paired with a 52 mm fork rake across all sizes to quicken the steering. Bottom-bracket drop grows to between 77.5 mm and 80 mm, and the wheelbase is longer (1,044 mm on a size 51). Colnago says the slacker head angle with more offset keeps the front end stable but “less floppy and vague,” while the lower BB makes the bike feel more “planted.”
A round seatpost, by design. In a notable reversal, the G5-X uses a standard round 27.2 mm seat tube and seatpost rather than a proprietary aero post. Colnago says this “absorbs vibration and chatter over long hours on gravel” and, crucially, opens the door to running a dropper post — a genuinely useful option on technical descents.
On the compatibility front, the frame is electronic-groupset only, built around a 1x SRAM XPLR AXS drivetrain with chainrings up to 50T, though 2x setups will accept compact and super-compact road chainrings. It uses the now-standard UDH derailleur hanger and a threaded BSA 68 mm bottom bracket — a reassuringly serviceable choice.
What This Means for You
If you’re in the market for a gravel race bike, the G5-X lands as a premium, no-compromise option — and even if its price is out of reach, its spec sheet is a useful snapshot of where gravel tech is heading. A few takeaways worth acting on whatever you ride:
- All three builds run tubeless 700 × 50 tyres, so dialling in your setup matters — our guide to setting up tubeless tyres will get you rolling reliably.
- The Vision and Zipp wheels on these builds are modern designs, which raises the hookless question — here’s how hookless rims work and who they suit.
- The threaded BSA 68 mm bottom bracket is one of the more maintenance-friendly standards out there; our bottom bracket standards guide explains why that matters.
- A race bike like this is built for events that are only getting bigger — the Gravel World Championships are heading to Australia for the first time.
Key Takeaways
- Colnago launched the G5-X gravel race bike on 7 October 2026, replacing the G4-X.
- Tyre clearance is 53 mm (700 × 50 stock) — deliberately race-focused rather than ultra-wide.
- New hidden in-frame down-tube storage holds a tube, inflator and tools.
- Slacker geometry, lower BB and a round 27.2 mm dropper-ready seatpost headline the changes.
- Three electronic SRAM XPLR AXS builds: Rival £5,299.99, Force £6,299.99, Red £9,999.99 (US/EU pricing TBC).
Source: road.cc and Cyclingnews, Colnago G5-X launch coverage, 7 October 2026.
