Why buy your bike from Sigma Sports?
Don't hesitate to reach out to us. It's our goal to answer all of your questions and offer the best advice from our experts. We’ll be happy to answer any questions you may have. Contact us now or visit us in-store.
Save up to 47% with any one of our 11 Cycle to Work partners, and get the health benefits of a new bike in exchange for tax free salary sacrifice. To find out more about our various partners and how to apply click here.
Choose between Free Bike Delivery - to your home or place of work - or our new Premium Bike Delivery Service £99.99 and have your bike delivered "ready to ride" and set up to your measurements with seatpost and pedals adjusted on arrival by a qualified bike mechanic. Either way, our Customer Care team will be in touch to arrange a delivery date to suit you.
We've partnered with Laka to offer you 30 days free bike Insurance on your new bike purchase over £400. Click here for more info and find out how to claim.
Colnago G3-X Gravel Bike
Experience the thrill of speed and adventure with the Colnago G3-X Gravel Bike. Whether you're seeking natural landscapes or craving the adrenaline rush of high-speed dirt road rides, the G3-X is your ultimate companion for both. Designed to be your trusty partner in all your outdoor escapades, this bike is guaranteed to deliver an exhilarating ride, backed by none other than Nathan Haas.
The Colnago G3-X Gravel Bike isn't just a bike; it's a redefinition of performance. With its advanced features and expert engineering, it's ready to take your gravel riding experience to the next level. Explore new horizons and conquer the trails with confidence, all while enjoying the speed and precision of the G3-X. Get ready to elevate your adventure and conquer the outdoors like never before.
Technical Specification
| Frame | Colnago G3X Frame G3X |
| Fork | Colnago G3X Fork G3X |
| Bottom Bracket | Shimano SM-BB72-41B BB86 SM-BB72-41B, Press Fit Road |
| Handlebar | Deda Elementi Gravel100 Deda Gravel Alloy 420/440/460W Diameter 31.75 + Di2 Holes |
| Stem | Deda Elementi Zero 1 90/100/110/120, Clamp Diameter 31.75 |
| Bar Tape | Colnago Black Bartape |
| Wheelset | Fulcrum Rapid Red 900 Fulcrum Rapid Red 900 Front/Rear, 12SP, Center-Lock, Micro Spline |
| Front Tire | Pirelli Cinturato™ Gravel H 700C x 40C |
| Rear Tire | Pirelli Cinturato™ Gravel H 700C x 40C |
| Chain | Shimano CN-M8100 122 Link, 12SP, with Quick-Link |
| Chainset | Shimano FC-RX820-1 GRX 12-speed 42T 170/172.5/175 |
| Front Brake | Shimano BR-RX820 GRX RX820 Lever |
| Rear Brake | Shimano BR-RX820 GRX RX820 Lever |
| Front Rotor | Shimano RT-MT800 φ160mm, Center-Lock, with Lock Ring |
| Rear Rotor | Shimano RT-MT800 φ160mm, Center-Lock, with Lock Ring |
| Rear Mech | Shimano RD-RX822 GRX Rear Mech, 12SP |
| Cassette | Shimano CS-M8100-12 10-12-14-16-18-21-24-28-33-39-45-51T, 12SP, Micro Spline |
| Saddle | Prologo Kappa RS Kappa RS |
| Seat Post | Colnago Colnago G3X Carbon Seatpost |
Built, Checked, Tuned and Tested
All our bikes are fully built, checked, tuned and tested by our Cytech qualified mechanics and then securely packaged, ready for delivery. All you have to do is add the pedals (if included), attach the handlebars to the stem and tighten them following the included detailed instructions or by watching our video and using the provided FREE tools. Visit our Bike Assembly page to see how you assemble your new bike once you receive it.
All bikes collected from our shop, are built, tested and ready to ride.
Please note, occasionally, manufacturers may change the specification without notice. Bicycles do not come with pedals unless otherwise specified. Bikes ordered for delivery will not arrive with the pedals installed, please refer to the owners manual and pedal installation guides provided for guidance. We do not install accessories to bikes, including mudguards. Bikes ordered for delivery that have tubeless compatible tyres and rims will arrive with inner tubes installed or with tubeless valves installed, this will be brand dependent. Sealant is available to be purchased separately.
If you require any assistance please contact our Customer Care team.
Colnago G3X Gravel Bike 2024 Sizing
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