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.
We've partnered with Pedalsure to offer you 30-DAYS FREE bike insurance on new bikes over £400. Visit our Cycle Insurance page to learn more and claim.
Haibike HardNine 6 Electric Mountain Bike 2022
Built for fast, flowing singletrack and a wide range of terrains, the Haibike HardNine 5 Electric Mountain Bike combines a lightweight aluminium frame with a reliable Yamaha PW-ST motor system. With 70Nm of torque and 250w of power, the motor feels strong and sporty on hilly terrain, making short work of even steeper climbs, and the pairing of a 630Wh battery provides long-lasting power to enhance your range. This bike has an electric assisted speed limit of 15.5 mph / 25 km/h.
A 120mm Suntour suspension fork smooths out rough trails, reducing fatigue over longer distances. The Shimano Deore drivetrain is built to last, offering 10-speed performance and excellent reliability. Hydraulic disc brakes boost control whilst descending, and the wide WTB Ranger Comp tyres bite into the trail to amplify traction when riding on loose trails.
Browse our range of Haibike electric mountain bikes today.
- Powerful Yamaha motor system with 250w of power and 70Nm of torque, 25km/h maximum assistance
- The robust and durable aluminium frame is lightweight and stiff
- Yamaha InTube 630Wh battery sees a high-capacity for lasting performance
- SR Suntour XCM34 fork with 120mm of supple suspension travel
- Shimano Deore drivetrain offers slick 10-speed performance
- Powerful Tektro hydraulic disc brakes
- 29” wheels offer fast rolling speeds and provide additional traction on loose terrain
- Maximum Assist: 250w / 70Nm torque
- Motor Weight: 3.4kg
- Battery Power: 630Wh
|Frame||Haibike HardNine Gen3 Intube, aluminium 6061|
|Fork||SR Suntour, XCM34 NLO DS, Steel spring/oil, 120 mm, 1/8 - 1 1/2" tapered, 15 x 110mm thru-axle, boost|
|Stem||XLC, alu, A-head|
|Grips||XLC, MTB grips|
|Handlebar||XLC, Topflat, 740mm|
|Front Brake||Tektro M275, hydraulic disc|
|Rear Brake||Tektro M275, hydraulic disc|
|Brake Levers||Tektro M275|
|Rear Derailleur||Shimano Deore M4120, 10-speed|
|Shifter||Shimano Deore M4100, trigger switch, 10-speed|
|Cassette||Shimano CSM4100, 11-42t|
|Crankset||Haibike, forged, aluminium|
|Front Wheel||Rim - Rodi, Tryp 30, with eyelets, hollow rim, aluminium / Hub - Haibike, Alu Nabe, 6-bolt standard|
|Rear Wheel||Rim - Rodi, Tryp 30, with eyelets, hollow rim, aluminium / Hub - Haibike, Alu Nabe, 6-bolt standard|
|Front Tyre||WTB, Ranger Comp, 55-622, 29" x 2.60", clincher|
|Rear Tyre||WTB, Ranger Comp, 55-622, 29" x 2.60", clincher|
|Seatpost||XLC, Aluminium, 31.6mm|
|Motor||Yamaha PW-ST System, 250w, 70 Nm, 25 km/h|
|Battery||Yamaha InTube, 630Wh|
|Ui/Remote||Yamaha Side Switch, 1.7" LCD, seven functions|
|Electric assisted speed limit||15.5 mph / 25 km/h|