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.
Orbea Terra M20 1X Disc Gravel Bike 2021
The Orbea Terra M20 1X Disc Gravel Bike grants multi-terrain performance to any rider who is looking for ultimate versatility across a vast sweep of surfaces. A comprehensive amalgamation of innovative design, advanced materials and reliable components lends the Terra to gravel, cyclocross, road and even commuting.
The monocoque frame construction is realised in an advanced grade of carbon to result in a light and reactive steed that surges up climbs with consummate ease. Each tube section is profiled individually to increase efficiency in high torsion areas but also compliance in zones where the main prerequisite is comfort. Promoting a size-specific geometry, the frame holds a composed character that comes to life when under power, regardless of the riders height and riding style.
A reactive but rugged Orbea Ready GR wheelset awards a multifaceted personality that is nimble when ascending on the road but sturdy and resilient when thundering across rutted paths. The Vittoria tyres partner the wheelset in perfect unison and grant traction and control across the most challenging of landscapes.
A vast array of ratios are provided by the Shimano 11-speed system that flicks between the gears with accuracy and dependability. At the same time, the single chainring configuration is reliable across the roughest of surfaces and virtually maintenance-free. The hydraulic disc brake set up comprehensively completes the spec list by awarding powerful, smooth and modulated stopping power that bestows confidence when on the most technical of topography and under the heaviest of precipitation.
- A super-versatile gravel bike that also performs admirably on the road, in cyclocross, during winter training or when commuting
- Full Orbea monocoque carbon frameset is light, precise and durable
- Optimised frame tube shapes offer stiffness, compliance and comfort across any surface
- Wide tyre clearance allows the use of different tyre widths to suit the terrain
- Integrated mudguard mounts offer all weather protection
- Size-specific frame tube sections and a finely tuned geometry grant control and balance across dirt tracks, gravel paths and roads
- Orbea Ready GR wheelset is robust but reactive
- Shimano RX810 11-speed gears are precise and reliable
- Single front chainring configuration is reliable and convenient
- Shimano BR-RX810 hydraulic disc brakes offer powerful and modulated stopping power
|Frame||Orbea Terra carbon OMP disc, monocoque construction, tapered 1-1/8" - 1,5", PF30, powermeter compatible, thru-axle 12mm x 142mm rear, thread M12x P1.5, internal cable routing, EC/DC compatible, SP 27.2mm|
|Fork||Orbea Terra OMP carbon disc fork, full carbon steerer, tapered 1-1/8" - 1,5", carbon dropouts thru-axle 12mm x 100m, thread M12xP1.5, MMS system|
|Headset||FSA 1-1/8 - 1-1/2" Integrated Carbon Cup ACB bearings|
|Stem||Orbea OC2 Road -8º|
|Handlebar||Orbea OC1 All Road, reach 80mm, drop 125mm, flare 12º|
|Front Brake||Shimano BR-RX810, hydraulic disc|
|Rear Brake||Shimano BR-RX810, hydraulic disc|
|Brake Levers||Shimano BR-RX810, hydraulic disc|
|Rear Derailleur||Shimano RX812 GS, 11-speed|
|Shift Levers||Shimano ST-RX810, 11-speed|
|Cassette||Shimano XT M8000 11-40t, 11-speed|
|Crankset||Shimano GRX RX810, 40 tooth chainring|
|Chain||KMC X11, 11-speed|
|Front Wheel||Orbea Ready GR with 12mm E-Thru Shimano RS470 28H hub, 12x100mm M12xP1.5 hollow thru-axle compatibility|
|Rear Wheel||Orbea Ready GR with 12mm E-Thru Shimano RS470 28H hub, 12x142mm M12xP1.5 hollow thru-axle compatibility|
|Front Tyre||Vittoria Terreno Dry Gravel G2.0 TNT 700x38c, tubeless-ready|
|Rear Tyre||Vittoria Terreno Dry Gravel G2.0 TNT 700x38c, tubeless-ready|
|Saddle||Prologo Akero AGX STN, size 155mm|
|Seatpost||Orbea OC2 27.2 Offset 20|
|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.