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.
All our bikes are fully built by our Cytech qualified mechanics. To find out more, see the Built, Checked, Tuned and Tested section below to see how we'll deliver your bike.
We offer FREE DELIVERY of your bike to your home or place of work. Once you've placed your order, our Customer Care team will be in contact to offer a convenient delivery date of your choice.
Cyclescheme can save you up to 39% on a bike and accessories. Visit our Cycle to Work Scheme page to learn more and claim.
Colnago G3X Disc Gravel Road Bike 2020
Colnago’s G3X Disc Gravel Road Bike might be their first foray into this growing segment, but it is a typical high-end offering. The carbon frame and fork use a gravel focussed geometry that has longer chainstays and lower bottom bracket for stability and a longer top tube to bring the rider forward into a more compact position when used with a shorter stem. The frame also features generous clearances that allow the use of tyres up to 700x42c or 650bx47 for great versatility. The Shimano RS370 wheelset is tubeless-ready and has been paired with Pirelli’s latest gravel tyre, the Cinturato Gravel H, which has small tread blocks for good performance on tarmac and hardpacked dirt or gravel. Shimano’s gravel-specific groupset has been put to good use, with the super low ratios afforded by the RX810 components going down to a potential 31-34 gear, perfect for steep or long off-road climbs even when laden down with bike packing gear.
- Colnago G3X carbon frame and fork with clearance for tyres 700x42c or 650bx47
- Shimano GRX RX800 gravel-specific groupset
- Shimano RX810 hydraulic disc brakes
- Shimano RS370 tubeless-ready wheelset and Pirelli Cinturato Gravel H 700x40c tyres
|FRAME||Colnago G3X Disc|
|FORK||Colnago G3X Disc|
|HANDLEBAR||Deda Gravel 100 RHM|
|FRONT BRAKE||Shimano BR-RX810 hydraulic disc|
|REAR BRAKE||Shimano BR-RX810 hydraulic disc|
|BRAKE LEVERS||Shimano ST-RX810 hydraulic disc|
|FRONT DERAILLEUR||Shimano FD-RX810|
|REAR DERAILLEUR||Shimano RD-RX810|
|SHIFT LEVERS||Shimano ST-RX810 11-speed|
|CASSETTE||Shimano HG-800 11-34t 11-speed|
|CRANKSET||Shimano RX810 48/31t|
|FRONT WHEEL||Shimano RS370 clincher|
|REAR WHEEL||Shimano RS370 clincher|
|FRONT TYRE||Pirelli Cinturato Gravel H 700x40c|
|REAR TYRE||Pirelli Cinturato Gravel H 700x40c|
|SADDLE||Prologo Zero 2|
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 specified), 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. We do not install accessories to bikes, including mudguards.