Haibike sDuro HardSeven 2.5 Limited Edition Electric Mountain Bike - 2021

The Haibike SDURO HardSeven 2.5 Limited Edition is a versatile hardtail electric mountain bike. With a perfect integration, the HardSeven 2.5 features a stylish design blended with value and performance.

Need some advice on your choice of e-bike? Give us a call on 020 3870 3207 for a no-obligation chat with one of our experts!

The Haibike SDURO HardSeven 2.5 e-MTB is destined for extended tours, featuring a strong Bosch Performance CX drive with an integrated battery, Suntour suspension fork, Shimano Deore 11-speed gears, 4-piston disc brakes as well as high-quality tyres for true sporty off-road use.

Ideal For

Mountain bikers, trail riding, 27.5" wheel riders

Key Features

  • Yamaha InTube 500Wh integrated battery a sleek solution for trail-bashing escapes
  • Yamaha PW-ST mid drive motor system, generating 70Nm max torque for effective assistance up hills
  • Clear Yamaha Side Switch LCD display
  • Top assisted speed of 25km/h
  • Haibike HardSeven 6061 aluminium alloy hardtail frame with trail geometry and internal cable routing
  • Suntour XCM32 Boost 120mm coil-sprung fork for superior control and ride comfort
  • Powerful Tektro hydraulic disc brakes for powerful, reliable braking in tough conditions
  • Easy to use Shimano Altus 9 speed gearing
  • WTB Ranger Comp, 27.5x2.30" tyres provide outstanding grip and longevity


  • Maximum Speed
    15.5 mph / 25 km/h
    Maximum Range
    The distance that you can travel on a single charge. This can be influenced by terrain, riding style and environmental factors.
    47 miles / 75 km
    Frame Material
    Metal aluminum frames are strong, reliable and cost-effective. Carbon frames offer greater stiffness and less weight, but are more expensive.
    Aluminium 6061
    22 kg
    Motor Power
    The rated power output of the motor. The higher the wattage then the higher the power consumption will be.
    250 W
    Motor Model
    Yamaha PW-ST
    Torque Output
    70 Nm
    Battery Model
    Yamaha InTube
    Battery Capacity
    The amount of charge that a battery can hold, measured in Watt-hours. The larger the numer of Watt-hours, the greater the potential range of the e-bike.
    500 Wh
    Yamaha Quick Charger 4A
    Battery Recharging Time
    4 Hours
    Range Extender
    Some e-bikes can be fitted with an extra battery to extend riding time and travel further.
  • Brakes
    Tektro M275, Hydraulic Disc
    A-Head Tapered  
    Haibike Components TheBar +++ Gravity, 780mm
    Handlebar Grips
    Haibike MTB
    WTB Ranger Comp, 27.5x2.30"
    Front Hub
    Haibike Components, The Hub ++ Steckachse
    Rear Hub
    Haibike Components, The Hub ++ Steckachse
    Aluminium, Hollow Chamber
    Haibike Components, The Seatpost +, 31.6 mm, Integrated Seatpost
    Haibike Components  
    SR Suntour XCM32 Boost DS
    A-Head Haibike Components TheStem +
  • Drivetrain Brand & Model
    The crankset is the set of toothed rings and the cranks in the middle of a bike. Rings with fewer teeth are easier to pedal, while rings with more teeth enable you to travel faster.
    Haibike, Forged, Aluminium
    Sprocket Gear Ratio: 11 -36T
    Number Of Gears
    KMC X9  
    Shimano Altus
    Rear Derailleur
    Shimano Altus M2000
  • Front Light Type
    Not included
    Rear Light Type
    Not included
    Not included
    Kick Stand
    Not included
    Freeridepedal , Aluminium, with Reflector
    Pannier Rack
    A pannier rack allows pannier bags to be added, which is a classic storage solution for riders who need to transport a lot of gear.
    Not included
  • Display
    Yamaha, Side Switch, 1.7" LCD
    7 functions, including: speedometer, battery capacity, assist mode indicator

What does the warranty cover? 

The statutory liability for material defects applies to the entire bicycle for two years. The first owner gets 5 years manufacturer's warranty on the frame starting on the purchase day.

How long is the warranty cover?

Electrical Parts 2 years, Frame 5 Years

What does the warranty exclude?

Excluded from this are wear and tear parts. You can get more information about the wear and tear parts in your Haibike manual.

More information 

Please visit For more details please visit: https://www.haibike.com/gb/en/service-and-advice/warranty

How do I claim

To make a claim please contact us at Pure Electric on help@pureelectric.com or visit your nearest Pure Electric store

UK and Northern Ireland

Delivery to UK & Northern Ireland on our e-bikes is FREE and in 5 working days.

Store Click & Collect

Not around to accept a delivery? We offer free click & collect in all our UK stores. Simply purchase your item online to secure stock and collect it from your local Pure Electric store. Your order will be ready within 5 working days and we’ll be in touch when it's available to collect.

International Ordering & Delivery

We currently only take orders from the UK and Ireland. Please see our Ordering & Delivery page for more details.

Built & Ready To Ride

When you order an e-bike from us, it’ll be built and inspected by a qualified member of the Pure Electric team before being boxed up and sent to you. Once delivered, all you’ll need to do is use the supplied Pure Electric multitool to straighten the handlebars and attach the pedals.


You have 30 days from the date in which your product has been delivered to return your product. To obtain a full refund, the goods must be returned in an “as new” condition, unridden with all parts, manuals and accessories included in the original box and packaging. To find out more information and how to return your items please visit our returns page.

Store Stock

Please click here to see if there is stock available in one of our stores. Unfortunately we are unable to reserve store stock, this is available on a first come, first-serve basis.

What makes Pure Electric unique?

Nationwide stores

Find us in major UK towns and cities. Get hands-on with our range, and even take a test ride.

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Expert advice

We’re experts in personal electric transport, and our colleagues are ready to meet you and answer any questions you have!

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Service & repair centres

We offer a full range of service packages for bikes, e-bikes and e-scooters in every one of our stores.

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Sustainability at Pure Electric

Our whole business is built on a dream of sustainable travel. When you buy from us, you’re supporting a cleaner, better way!

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Finance available

We make paying for your new e-scooter or e-bike easy with flexible finance options covering a variety of affordable payment plans.

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Price match promise

Found the same product at a better price? Let us know and we could match them – giving you the lowest price (if it isn’t the lowest already!). T&Cs apply.

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When you buy an e-scooter or e-bike from us, we want you to be supported long after you leave the store. So, we’ll make sure that you receive useful information via email that will keep you riding. Read More.