Croix de Fer 40 2026

The Genesis Croix de Fer 40 spec level is where the Croix de Fer range starts to show its serious adventure credentials. Combining the renowned ride quality of Reynolds steel with a modern Shimano GRX 1x12 drivetrain, it's a bike built for riders who want simplicity, capability and all-day comfort across virtually any terrain.

At the heart of the Croix de Fer 40 is Genesis' proven Reynolds 725 steel frameset, paired with the Amplitude G100 Chromoly fork. The result is a ride that feels smooth, composed and confidence-inspiring whether you're tackling gravel tracks, loading up for a bikepacking trip or simply taking the long way home. Steel remains the benchmark for riders seeking comfort and durability, and the Croix de Fer continues to demonstrate exactly why.

The biggest upgrade comes in the form of Shimano's excellent GRX 1x12-speed groupset. Combining RX822 and RX610 components, the drivetrain delivers crisp shifting, exceptional chain security and a huge gear range thanks to the 40T chainring and 10-45T cassette. The simplicity of a single chainring setup reduces maintenance, improves mud clearance and makes it easier to focus on the ride ahead when the terrain gets rough.

Shimano GRX RX610 hydraulic disc brakes provide powerful and predictable stopping performance in all conditions, giving you the confidence to push further off-road and descend with control. Whether you're riding wet winter lanes, loose gravel descents or fully loaded adventure routes, braking performance is never in question.

Rolling on the Amplitude G100 wheelset with Maxxis Rambler 700x45mm tubeless-ready tyres, the Croix de Fer 40 strikes an excellent balance between speed, grip and comfort. The wide tyres and tubeless-ready setup smooth out rough surfaces, improve puncture resistance and open up a huge range of terrain options, from tarmac and towpaths to technical gravel and forest tracks.

Like every bike in the Croix de Fer family, versatility is built into the frame. Multiple mounting points for racks, mudguards and luggage make it equally at home as a gravel bike, bikepacking rig, endurance adventure bike or year-round commuter. Internal cable routing keeps things clean while also allowing for straightforward dynamo and dropper post compatibility for riders looking to customise their setup further.

Key Features

• Reynolds 725 steel frame
• Amplitude G100 Chromoly fork
• Shimano GRX RX822 / RX610 1x12-speed drivetrain
• 40T chainring
• 10-45T cassette
• Shimano GRX RX610 hydraulic disc brakes
• 160mm rotors front and rear
• Amplitude G100 wheelset
• Centre-Lock rotor mounts
• 12mm thru-axles front and rear
• Maxxis Rambler 700x45mm tubeless-ready tyres
• Tubeless-ready rims with valves included
• Internal cable routing with dynamo compatibility
• Dropper post compatible
• Rack, mudguard and bottle cage mounts
• Built for gravel riding, bike-packing, touring and adventure riding

Sizing - 

• XS: 155–165 cm
• S: 164–173 cm
• M: 172–181 cm
• L: 177–187 cm
• XL: 185–195 cm