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.
GT Grade Pro Gravel Bike 2021
The GT Grade Pro is a serious gravel bike, delivering the ultimate comfort and control over rough terrain, a lively ride feel and sublime handling. The bike pairs a carbon frame and fork and incorporates GT's signature Triple Triangle™ in which the thin seatstays 'float', unbound by the seat tube and joining directly to the top tube. Glass fibre rods are combined with carbon in the seatstays to create high strength with more flex. The result is incredible compliance with no compromise to the overall weight. A Flip Chip at the fork dropouts shifts the offset between 55mm and 40mm, altering the trail and allowing you to adapt to different types of riding. The geometry is similar to that of an endurance road bike, for all-day comfort.
The frameset is paired with Shimano GRX 11-speed components in a 1x configuration. There's a wide 11-42-tooth cassette paired to 42-tooth front ring, helping make light of the climbs, and hydraulic disc brakes with 160mm rotors take care of stopping duties. Flared bars aid control when hitting technical descents. The bike rolls on Stan's NoTubes Crest wheels, fitted with 40mm wide WTB Nano TCS Light tyres for good traction on the looser stuff.
- Grade Carbon frame and fork
- Floating seatstays for more compliance
- Flip Chip fork
- Di2 and Stealth Dropper compatible
- Shimano GRX 800 1x11-speed drivetrain
- Hydraulic disc brakes
- Stan's NoTubes Crest Wheelset
- Tyres clearance: 42c (700c wheels) / 47c (650b)
|Frame||GT Grade carbon, Triple Triangle design featuring floating seatstays, 12x142mm thru-axle, flat Mount disc, tapered headtube, Di2 and dropper compatible|
|Fork||GT Grade carbon, tapered carbon steerer, 12x100mm thru-axle, flat Mount disc, adjustable Flip Chip|
|Headset||FSA No.44, integrated, sealed bearing|
|Bottom Bracket||Praxis M30 PressFit|
|Stem||GT 3D Forged SL Alloy, 31.8mm|
|Handlebar||GT DropTune Super Light, double-butted 6061 alloy, 16° flare|
|Bar Tape||GT Gravel Grip Premium|
|Front Brake||Shimano GRX 810 hydraulic disc, 160mm MT800 rotor|
|Rear Brake||Shimano GRX 810 hydraulic disc, 160mm MT800 rotor|
|Brake Levers||Shimano GRX 800|
|Rear Derailleur||Shimano GRX RX810 Shadow Plus|
|Shift Levers||Shimano GRX 800, 11-speed|
|Chain||Shimano HG601, 11-speed|
|Cassette||Shimano XT, 11-42t, 11-speed|
|Crankset||Praxis Zayante Carbon-S, 42t|
|Front Wheel||Hub - Stan's NoTubes Neo 12x100, 28h, Center Lock / rim - Stan's NoTubes Crest MK3, 28h, tubeless-ready / spokes - 14-gram stainless steel|
|Rear Wheel||Hub - Stan's NoTubes Neo 12x142, 28h, Center Lock / rim - Stan's NoTubes Crest MK3, 28h, tubeless-ready / spokes - 14-gram stainless steel|
|Front Tyre||WTB Nano TCS Light, 700 x 40c, tubeless-ready|
|Rear Tyre||WTB Nano TCS Light, 700 x 40c, tubeless-ready|
|Saddle||Fabric Scoop Shallow Elite, Cr-Mo Rails|
|Seatpost||TransX YSPI01 Dropper Post, 50mm, 27.2mm|
|Pedals||Available to be purchased separately|
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 or contact Customer Care. We do not install accessories to bikes, including mudguards.