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Haibike sDuro HardSeven SL 2015 Yamaha

£1,849.00 Sold Out

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Who is this bike suitable for?

With 100mm of travel, this hardtail electric bike is the entry level model within the Haibike sDuro range. The HardSeven 2015 eBike is built on more entry level components without compromising quality. It is designed for the eMTB'er who wishes to take on some of the local trails. It is suitable for XC / Trail use. Can also be used as a clutter free commuting bike. 

To sum up, it's fantastic! I came to the conclusion that it's possibly the best purchase I've ever made. Value for money spot on, quality spot on, service spot on. Just buy one! Whatever you want it to do it will exceed your expectations and look mighty fine in the process. If a smile is worth a pound It's already paid for it's self. Happy riding guys!..

New Features

The brand new Haibike HardSeven SL 2015 eBike is an exciting one for us, it offers an affordable way into the crank drive electric bike world. 

This eMTB features the the new revolutionary 27.5" (650B) wheel size which takes all the benefits of both 26" & 29" and squeezes them into the ultimate hardtail.

Haibike have equipped this model with a Shimano 9 speed gear system, which operates on trigger shifters. 

The HardSeven SL features a Suntour 100mm front suspension fork with lockout so the riders energy can be conserved whilst climbing or on less bumpy terrain. 

Shimano Deore 9 Speed Gear System

This fork is air adjustable and can be pressurised for the riders exact weight. We see the Tektro hydraulic disc brakes front and rear with larger 180mm rotors for increased stopping power. The 27.5" wheels are made up of XLC disc hubs which are quick release front and rear, these are laced onto Rodi disc specific alloy double wall rims and Sapim double butted spokes.

sDuro Hard Seven SL with Tektro Disc Brakes

Although the entry level model Haibike have managed to squeeze a decent set of Schwalbe Rapid Rob tyres into the equation. 

These tyres offer decent off road grip but don't pick up too much resistance on tarmac or hard pack terrain. 

All in all the new Haibike HardSeven 2015 model is certainly a eBike not to be reckoned with in terms of its affordable price ticket and the components used.

 A German built bike with the Yamaha crank drive motor, all for under £2K? You decide!

Haibike sDuro range? 

The new Haibike sDuro range is focused on the younger generation. With the age range of people using eBikes getting younger and younger the sDuro electric bikes are all equipped with the Yamaha eBike system offering a more affordable system to younger people.

The prices, styling & design reflect this and the bikes start at a lower point and only go up so far. The xDuro range then crosses over and takes the component level further for more advanced riders. The sDuro range was developed for riders in the age range of 20-30 to offer a new level of eBikes to the next eGeneration. 

New HardSeven SL with Yamaha eBike system

Yamaha eBike System

The new Haibike sDuro HardSeven SL is powered by the latest Yamaha electric bike system. Haibike has partnered with Yamaha to bring a brand new line of sDuro eBikes, this powerful 250w motor offers up to 280% assistance and peaks at 80Nm of torque. 

The power curve comes in early and is responsive as soon as you touch the pedals. The assistance is set in 3 levels - 'Eco', 'Standard' & 'High'. This allows the user to fine tune the amount of assistance required during the ride offering complete flexibility and control. 

You can read the full review of the Yamaha eBike system on our blog pages here

 The Yamaha system uses a 400Wh battery with an assisted range of up to 80 miles. The Haibike sDuro Hard Seven SL 2015 eBike is offered with the largest 400Wh battery to give a full days ride time. It can be quickly recharged in a matter of hours and the new LCD display shows not just how much capacity the battery holds but also the predicted range in assisted miles. 

 Learn more about the Yamaha eBike system on our Blog here.

Whats included? 

This bike comes fully set-up by our workshop technicians. You can be sure that every aspect of the eBike has been dialed in for optimum performance. On all suspension models, be sure to let us know your weight as we can pre adjust the suspension to the desired rider weight, giving the perfect balance and agility specifically for individuals needs. All our electric bikes arrive with a user manual, keys, charger & free follow up service.

Warranty on Haibike sDuro HardSeven SL

Our electric bikes also include a 5yr warranty on the frame, 2yr warranty on all the electrics & 1yr warranty on the components. In the event of a problem, we handle all warranty claims in-house. 

E-bikeshop is a UK Yamaha Electric Bike Service Center and our in house workshop is now exclusively reserved for our own eBike customers. We also have parts / spares to hand should they be required.

Customer Reviews

Hi all I wanted to do 2nd review about this bike. After having it for 8 months, done 6920km , maby pointing the GOODs and the BADs, just describing what goes wrong with bike after the time, so you know what to expect when buying bike like this

Write a review



General Bike Specifications


Aluminium 6061, 27,5", hydroforced tubes, Yamaha Motor Interface


Suntour XCR Air RL-R, Remote lockout, suspension: air/oil, travel: 100mm

Rear Shock



Tektro Auriga, hydraulic disc brake, 180mm


Shimano Acera SL-M 390, Rapidfire Trigger Shifters

Rear Mech

Shimano Deore M591, 9 Speed


Haibike sDuro Aluminium


Shimano HG 200-9, 11-34 Teeth, 9 Speed


KMC X9e 9 Speed


XLC Evo Disc Hubs, Rodi Alloy Double Wall Rims & Sapim Spokes


Schwalbe Rapid Rob, 27,5x2,25, Presta valve


sDuro Lowriser Aluminium


sDuro Aluminium, A-Head


FSA No. 57, A-Head, semi-integrated, tapered


Sduro Alu 31,6mm, Alu Patent, clamp with QR


Selle Royal Sirio


21.2 kg

Electric Bike Specifications


Yamaha Lithium Ionen 36 Volt, 400 Wh


Yamaha multifunctional display with operation unit & walk assist


Yamaha Crank Drive 36V 250W


40-80 miles range, cost to charge from flat - 5 pence

Further Information


The most frequently asked questions on this eBike -

The below questions relate to this particular bike. You can find a full F.A.Q on eBike & website questions by clicking here.

What sizes is this bike available in?
The Haibike sDuro Hard Seven SL is available in the following sizes - SOLD OUT

Is this bike in stock now?
The stock status is shown at the top of this page next to the price. If the stock level is shown as 'Pre-Order' this means it is a new model arriving soon, you can see a better date at the top of each bike description, it is highlighted in a grey box. You can order a bike for pre-order. Once the checkout has been completed we will take a small deposit, then settle the balance when the bike becomes available. 

Are there any colour options?
No, the HardSeven SL bike is only available in the colour shown.

Where can I find a geometry chart of this bike?
You can find the geometry chart of each bike by clicking on the 'Downloads' tab of each bike.

How fast will this bike go?
This bike will assist you to 15 mph. From there you can pedal faster, but with no assistance. You can add a tuning kit to increase the assisted speed For off road (private land) use only.

How do I add a tuning kit to the bike?
Its simple, just add the bike to the basket along with the appropriate Tuning Kit. We will then fit it prior to dispatch / collection. 

Where is this bike made?

Can I try the bike before I buy?
Yes of course, you can visit, we can talk you through your riding style and requirements and offer expert advice as to which model to select. We will be able to advise particular eBikes and talk them through in more detail. We also give you the opportunity to ride crank drive bikes so you can get a feel for them prior to purchase. 

At e-bikeshop we work by appointment only so we can talk to each customer on an individual basis to give the best advice possible. If you like the bike, you have the option to take it away there and then with and accessories selected fitted and a full fitting session on the bike itself. We ask you to go for a short ride on the bike to make sure you are happy with the set up and also able to answer any operational questions you may have. 

If you cannot find the answer you are looking for, please do not hesitate to get in touch.

Remember you can find a full F.A.Q on general electric bike & website questions by clicking here.

The following links will open PDF files in a new tab -


Yamaha eBike System Overview - Yamaha eBike System Overview

Winora Bike Manual - Winora Group eBike Manual

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Finance Options

The prices below do not include any additional products, product options or shipping costs.
To pay by finance select the finance option during the checkout process.
Finance is only available for UK residents.

Finance Options
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The above values are best estimates, Final pricing will be confirmed on the V12 Retail Finance application. The UK Electric Bike Company Ltd is registered in England and Wales 08775019. Registered office: 12 Borelli Yard, Farnham, Surrey, GU9 7NU. The UK Electric Bike Company Ltd acts as a credit broker and only offers credit products from Secure Trust Bank PLC trading as V12 Retail Finance. The UK Electric Bike Company Ltd is authorised and regulated by the Financial Conduct Authority. Our firm reference number is 659966. Credit provided subject to age and status.