Haibike SDURO HardSeven 1.0 27.5" 2019 - Electric Mountain Bike

Extend the adventure and ride with less effort. The Haibike SDURO HardSeven 1.0 is an electric mountain bike that offers a powerful boost to your natural pedalling power. The powerful Yamaha crank drive motor is combined with a suspension fork and multi-terrain tyres so that you can ride on rough gravel tracks as well as smooth tarmac cycle paths.
Key Features:
- 6061 aluminium frame is lightweight and robust
- SR Suntour XCM fork offers 120mm of trail smoothing suspension travel
- Shimano 1x9 speed drivetrain for reliable gear shifting
- Tektro hydraulic disc brakes for all-weather stopping power
- Sizes: 35cm (X Small), 40cm (Small), 45cm (Medium), 50cm (Large), 55cm (X Large)
- Colour: Black Grey Blue
- The Haibike SDURO HardSeven 1.0 is available with 0% APR finance
Drive Information:
- Motor: Yamaha PW-SE System, 250W
- Battery: lithium Ion, frame mount, 400Wh
- User interface/remote: Yamaha Side Switch 1.7“ LCD display
SDURO opens up the world of sporty innovative ePerformance bikes to a wider range of riders than ever before. Comfort, quality and class leading performance has never been so accessible.
New for 2019 across all Yamaha equipped models is the introduction of Yamaha PW-SE motors – with improved response to higher cadence and a higher torque output.
Across HardSeven, FullSeven and even Cross & Trekking models we’ve introduced intube batteries, not only for a sleeker look, but so that Yamaha models can benefit from our Modular Rail System line of accessories. Our Bosch equipped Trekking and Cross models have been improved too making them more accessible with rider focussed Bosch Active plus systems.
The HardSeven comes with agile 27.5" wheels available in wide or comfortable plus tyres, for tours in easy terrain. You also have the choice between high-quality, light aluminium frames and different drives.
Highlights:
NEW Yamaha PW-SE drive unit: The PW-SE engines provide all the popular features of the first PW generation together with improved cadence support up to 110 rpm and Bluetooth connectivity.
Yamaha side-switch LCD display: 1.7“ LCD display for a wide range of use with easy-to-handle screen featuring speed and battery level indication.
All Tredz bikes are:
- Fully built & ready to ride
- Fully checked & tested by Cytech qualified mechanics
- Available with 0% APR finance on baskets over £99
- 365 day no hassle returns
- Free delivery in the UK Mainland on a date that suits you
In the box with every Tredz bike is:
- Free Tredz 9 key trail tool
- Free Tredz pedal spanner
- Free basic pedals
- Tredz drawstring kit bag
- 16 point quality control check sheet
- Basic bike setup instructions
- Free Cycle Plan insurance voucher (8 weeks)
Occasionally, without notice, manufacturers change product design and/or specifications.
Electric Bike Bike Size Chart
Height |
e Bike Size |
e Road Bike Size |
e Mountain Bike Size* |
4’8” – 5’1” 143 – 155 cm |
XXS |
44 cm |
13” (33 cm) |
5’1” – 5’4” 155 – 163 cm |
XS |
48 cm |
15” (38 cm) |
5’4” – 5’7” 163 – 170 cm |
S |
51 cm |
16” (41 cm) |
5’7” – 5’10” 170 – 178 cm |
M |
54 cm |
18” (46cm) |
5’10” – 6’0” 178 – 183 cm |
L |
56 cm |
19” (48cm) |
6’0” – 6’3” 183 – 191 cm |
XL |
58 cm |
20” (51 cm) |
6’3” – 6’5” 191 – 196 cm |
XXL |
60 cm |
21” (53 cm) |
6’5” – 6’9” 196 – 205 cm |
XXXL |
62 cm |
22” (56 cm) |
* Mountain bikes are sized differently to road bikes. Typically, they are sized in inches as the first MTBs were produced in the USA. European brands like Lapierre and Haibike like to use centimeters for all their bikes. The measurements of their mountain bikes doesn’t match their road bikes but is like a simple conversion from the inches measurement. This is why we have included cm measurements in brackets for the e mountain bike column.
See our bike size guide for more on bike sizing
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