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.
Gain D30 GRX 600 Disc E-Gravel Bike 2021
For long mixed-surface adventures that you simply want to enjoy to the full, treat yourself to an Orbea Gain D30 GRX 600 Disc E-Gravel Bike. The powerful motor is housed in the rear wheel and is designed to enhance your ride rather than dominate it. So, you can call upon its 250 watts of assistance when you want it, and ride freely without assistance when you don't.
The 248Whr battery is housed in the down tube, and the neat Mahle Ebikemotion iWoc ONE remote interface will let you know how much power you have left among other metrics. Also in the head unit, you'll find a 60 lumen integrated front light, with a rear light housed in the seatpost too.
A Shimano GRX groupset is specified here with a 1 x 11-speed setup that's perfect for choppy trails and long canal tow-paths, with the wide-ranging 11-40t cassette combining with the 40t chainring for loads of gearing options. The grippy Vittoria Terreno Dry Gravel G2.0 tyres come in a size 38c, so you'll have comfort and traction wherever you ride.
- The Mahle Ebikemotion X35 Plus motor is designed to improve your rides, not dominate them
- Motor is located on the wheel axle, not the bottom bracket, so you’ll enjoy pedalling without resistance when the power assist is off
- ICR Plus internal cable routing keeps the cockpit clean looking
- Integrated lights
- Mahle Ebikemotion 248Wh battery neatly housed in the downtube
- Mahle Ebikemotion iWoc ONE interface displays battery and assist levels as you ride
- Hydroformed Aluminium frame is lightweight and robust
- Endurance geometry is perfect for riding all day long
- Shimano GRX 11-speed groupset is ideal for gravel riding
- Vittoria Terreno Dry Gravel G2.0 tyres are plush and comfortable off-road, providing plenty of grip too
- Maximum Assist: 250w up to 25km/hr
- Motor Weight: 3.5kg
- Range: Up to 47 miles / 75km depending on usage and riding conditions
- Battery Power: 250Wh
|Frame||Orbea Gain Hydro 6061 Hydroform Aluminium 2021, ICR cable routing, Forged BB, safety screw, 135x9 QR, Flat Mount disc mount, 700x40 maximum tyre, 1" 1/2 semi-integrated headset, 41 x 86.5 Pressfit bottom bracket|
|Fork||Orbea Gain Hydrocarbon fork, full carbon, 1-1/8" - 1.5" tapered head tube compatible, 700x40 maximum tyre, flat mount disc mount, Thru-axle 12x100mm|
|Headset||Orbea Acros Alloy 1-1/2" Internal Cable Routing|
|Stem||Orbea OC1 31.8mm interface -6º|
|Handlebar||Orbea OC1 All Road, reach 80mm, drop 125mm, flare 12º|
|Front Brake||Shimano GRX400 hydraulic disc|
|Rear Brake||Shimano GRX400 hydraulic disc|
|Brake Levers||Shimano GRX400|
|Rear Derailleur||Shimano GRX812 GS 11-speed|
|Shift Levers||Shimano GRX ST-RX600 11-speed|
|Cassette||Shimano SLX M7000 11-40t 11-Speed|
|Crankset||Shimano GRX RX600 40t|
|Front Wheel||Blackjack Ready GR clincher|
|Rear Wheel||Blackjack Ready GR clincher|
|Front Tyre||Vittoria Terreno Dry Gravel G2.0 TNT 700x38c clincher|
|Rear Tyre||Vittoria Terreno Dry Gravel G2.0 TNT 700x38c clincher|
|Saddle||Selle Royal Asphalt GR|
|Seatpost||Orbea OC 27.2 Offset 0, for integrated light|
|Pedals||Available to be purchased separately|
|Accessories||60 Lumen COB LED front light on display holder, 11-lumen Lezyne STVZO seatpost mounting rear light|
|Motor||Mahle Ebikemotion X35 Plus 25kmh (250 watts, 40Nm maximum torque)|
|Remote||Mahle Ebikemotion iWoc ONE|
|Battery||Mahle Ebikemotion 36V/6.9A 248Wh ANT+|
|Charger||Mahle Ebikemotion X35|
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.