Sparta R10i Crossbar e-Bike Green

Electric bike frame size guide

Inside leg range Frame size
24 - 29" (61 - 74cm) 14" (35.56cm)
25 - 30" (64 - 76cm) 15" (38.1cm)
26 - 31" (66 - 78cm) 16" (40.64cm)
27 - 32" (69 - 81cm) 17" (43.18cm)
28 - 33" (71 - 84cm) 18" (45.72cm)
29 - 34" (74 - 86cm) 19" (48.26cm)
30 - 35" (76 - 88cm) 20" (50.8cm)
31 - 35" (79 - 88cm) 21" (53.34cm)
32 - 37" (81 - 94cm) 22" (55.88cm)
33 - 37" (84 - 94cm) 23" (58.42cm)

Sparta electric bike made in holland

The SPARTA R10i Crossbar electric bike is designed for Low Weight, Maximum Power and Long Range (up to 160 miles). With a built-in power boost throttle it’s 40Nm silent motor will summit the steepest inclines with ease, then as you roll back down the other side Sparta’s regenerative braking system will harvest the energy and re-charge your battery. Like all Sparta electric bikes it’s available with not just one, but a choice of 4 different battery sizes (see table below for range per charge).

Sparta R10i Crossbar electric bike

Motor Power
Battery Location
Rear Rack
< 160
Battery Chemistry
and Capacity

Li-Pol, 600 Wh
(36 Volt x 17Ah)

600 36 17
  • Overview
  • Delivery
  • After Sales Service
  • Sparta’s powerful 40Nm motor and regenerative braking system make it ideal for those living in hilly areas …or planning to tour the Pyrenees! This system is similar to the KERS technology found on modern Formula One racing cars – rather than wasting braking energy, when you switch on the KERS the motor does the braking for you and puts the otherwise lost energy back into the battery when you’re slowing for a junction or descending a steep incline. This system extends the distance between charges considerably when in London’s stop-start traffic or on the hilly Cornish coast.

    Spata R10i_Crossbar electric bike uk


    The powerful ION motor – designed and built by Sparta – has no internal moving parts so it’s completely silent and sealed against the elements. The amount of assistance it provides is directly proportional to the amount of pressure you put on the pedal – you are in complete control: press gently on the pedals and the bike will whiz you along at speed, stop pedaling and your e-bike will simply coast to a halt – it’s just like riding a manual bike, only much easier and much more fun!

    The aluminium frame is beautifully formed, reassuringly sturdy, and the combination of gel filled Selle Royale seat, sprung seat post, and clever head-stock front suspension ensure maximum rider comfort whether on road or exploring bumpy tracks and rural paths.


    Sparta have always been ahead of the competition when it comes to security:

    Electronic Security: Before the Sparta can be sold the owners details must be stored electronically in the motor, the battery, and the handlebar-mounted LCD display unit. These details are also recorded by us, by Sparta in Holland, and stored on the European cycle database. Once the bike has been registered in this way the large clear display unit acts as an electronic immobiliser – simply un-clip it from the handlebar and the Sparta’s battery and motor are disabled. In practice this feature – unique to Sparta e-bikes – renders the e-bike of near zero value to knowledgeable cycle thieves …so the leave it just where you left it.

    Mechanical Security: A hardened steel mechanical ‘ring-lock’ is secured to the frame just beneath the saddle (thieves would have to cut this Sparta in half to pinch it!). If the Sparta is going to be left unattended for longer periods a bayonet chain (optional) can be plugged into the frame’s ring-lock enabling the Sparta to be secured to a railing or cycle stand. The same key is used to lock the battery securely in position.

    Un-professional thieves that aren’t familiar with Sparta’s advanced security systems are flummoxed by the built in mechanical locks. In eight years only one of our London customers has had their Sparta stolen – once the thieves realised they couldn’t break the e-bike’s mechanical locks and were unable to make the motor or battery work they dumped it. The police soon discovered it and entered the Sparta’s frame number into the European cycle database. The Sparta in question was delivered to the owners door by the police 4 days later.

    The multi-function back-lit LCD handlebar display shows the following information:

    Sparta electric bike security


    • selected assistance level
    • total mileage
    • trip distance
    • battery charge status
    • remaining range
    • speed
    • average speed
    • time and date
    • temperature

    Powerful front and rear lights switch on automatically when the Sparta detects low light levels and if you ever have a flat battery the motor switches roles, turning into a dynamo to power the lights. This model also features a power boost throttle for fast and safe acceleration away from junctions or up steeper inclines, and a park-assist function that propels the e-bike through deep sand and slippery paths or up steep ramps and stairs when you’re walking alongside … yes, the Dutch have thought of everything!


    Front and rear lights are powered by the main battery and switch on automatically (if you every have a flat battery the motor switches roles and turns into a dynamo to power them). This model also features a POWER BOOST THROTLE for fast acceleration from junctions and PARK ASSIST function to help you climb steep ramps or stairs. – See more at:
    Front and rear lights are powered by the main battery and switch on automatically (if you every have a flat battery the motor switches roles and turns into a dynamo to power them). This model also features a POWER BOOST THROTLE for fast acceleration from junctions and PARK ASSIST function to help you climb steep ramps or stairs. – See more at:

    Powerful Magura hydraulic brakes front and rear give effective and predictable braking in all conditions, and it’s sporty steering geometry make it a very rewarding ride for accomplished cyclists whatever the road or track conditions.


    Key Features:

    • Ultra-light weight (21.5Kg).
    • Regenerative braking.
    • Shimano Deore 10 Speed gears.
    • 5 power assistance levels.
    • Power Boost and Park Assist throttle.
    • Magura Magura HS-11 hydraulic breaks front and rear.
    • Full mudguards and fully enclosed chain.
    • Built-in front and rear lights.
    • Sturdy side stand fitted as standard.
    • Adjustable handlebars.
    • Sprung seat post.
    • Telescopic fork front suspension.

    Battery & Range:

    There are 4 battery options: 300, 400, 500, or 600Wh (Watt Hours). Choose the smaller one if you plan to do only shorter trips, or the 600Wh if you need to travel 100+ miles before stopping to recharge. All batteries are locked in place with the same key that locks the frame.  Details of the bike and its owner are stored electronically in the battery so it cant be used on any other e-bike.

    sparta electric bike battery

    The following ranges (Km) are achievable under normal riding conditions, the minimum range guide is applicable when you’re in hilly and or stop-start environments, the maximum range guide is applicable for flat and open terrain.


    POWER SETTING      300Wh Battery      400Wh Battery      500Wh Battery      600Wh Battery

    ECO 70-135 90-175 115-220 135-260
    CRUISE 50-100 70-130 85-165 100-195
    TOUR 35-70 45-90 60-115 70-135
    SPORT 30-55 40-75 50-95 60-110
    POWER 25-50 35-70 45-85 50-100


    Please click here to see reviews of this Sparta electric bike

    Sparta made in holland

    SPARTA are the most successful electric bike producer in Europe, by a huge margin.

    They enjoy the No.1 spot in Holland, Germany, Belgium, Austria and France where their e-bikes win design awards year after year. How have they achieved this international success? …simple, by making electric bikes that exceed the expectations of men and women in their home market of Holland, where today, hundreds of thousands of Dutch men and women are whizzing about on Sparta e-bikes. The Dutch know a thing or two about cycling – if they think a Sparta offers better value and performance than all the others, then it’s quite likely the rest of the word will too!

    Sparta’s e-bike designers begin with a clean sheet of paper on which they write the following: Reliability; Security; Style; Ease of use; Silence; Comfort; Performance; and above all, Value for Money. Have they delivered? Clare and I think so.


    sparta electric bike technology


    For each and every one of the 8 years we’ve been supplying and servicing Sparta electric bikes to customers in the UK they have been way ahead of their competitors: Like other world-leading technology companies such as Apple & Samsung, Sparta have managed to take mid-bogglingly complex engineering and package it in reliable and easy to use products No other e-bikes have built in mechanical security locks and personal electronic immobilisers; No other e-bikes have powerful silent motors that automatically turn into dynamos to power lights if you ever have a flat battery; No other electric bikes incorporate a switch-less regenerative braking system to recoup energy when you’re descending steep hills.

    Sparta started with the advantage of decades of experience producing “SpartaMets” – those peculiar contraptions that combine a bicycle with a small petrol engine hidden within the rear wheel – a few of which can still be heard buzzing around the streets of Amsterdam today. We have a 1972 vintage SpartaMet in our Suffolk showroom – come and try it, its great fun!

    Justebikes Sparta electric bike shop inside


    Sparta electric bikes in cafe location mojoAs advances in battery and electric motor technology developed to a point where comparable range and power could be achieved without the din and smoke of a two-stroke engine, Sparta made the natural leap to e-bikes.

    With this wealth of powered bicycle experience behind them they developed a range of beautifully engineered e-bikes that meet the requirements and expectations of discerning customers of all ages and tastes. For example, some Sparta e-bikes have batteries hidden away in their frame so they look like conventional bikes. Some have removable batteries so they can be un-clipped and recharged alongside the toaster up in a 7th floor flat. All have built in mechanical locks and many have electronic immobilisers. All have powerful and silent maintenance-free motors.

    In seeking out the best e-bikes available I visit many factories. I’m at Sparta’s headquarters in Apeldoorn at least twice a year and each time I’m surprised by some new manufacturing process, or advance in technology. Sparta, you see, are ahead of the game by at least two years. But one thing never changes: the Dutch men and women that operate their state-of-the-art production line, man the phones, print the brochures, and make the coffee, are happy and proud of their work. They may not sport wooden clogs these days, but the sight of a smiling Dutch workforce doing what they’ve done best for centuries is somehow reassuring in this modern age. Producing 21st century vehicles built on the same ‘Quality First and Last’ ethos as their 1930’s machines, that’s something special indeed.

    When we deliver your Sparta e-bike our staff will take time and care to ensure the seat, handlebar and controls are perfectly adjusted to suit your size and riding style. Once everything is perfectly positioned you will be able to appreciate the real value of a Sparta electric bike – an invisible hand pushing you up every hill, the hidden technology that’s so subtle you’ll think you’re bionic, all the pleasures of cycling without the sweat!


    Sparta makingin quality bikes since 1917



    Click here to read comedian and Daily Telegraph motoring correspondent Alexei Sayle’s review

    SPARTA make 56 different models of electric bike, each designed to meet a specific need – if you would like us to help you find the perfect one for you please email or call Clare or James on 0208 960 9848 (London), 01728 830 817 (Suffolk).

    Please click here to see our full range of Sparta electric bikes

    Commissioned and road tested e-bike

    Before being delivered your electric bike is checked and road-tested by our expert staff to make sure everything is perfect.

    Fully assembled and delivered direct to you by our expert staff

    We don’t believe your e-bike experience should begin with a white van dropping off a brown cardboard box. This is a whole different delivery experience – our experienced staff will gladly spend time with you to make sure you’re happy with your choice and understand all its features, so be ready to put the kettle on!

    no brown box delivery1

    One of our team will deliver your e-bike to your door fully assembled and tested at a pre-arranged time, and will work with you to ensure every thing is perfectly adjusted to suit your size and preferred riding style before that all-important test ride.

    After your test ride, when everything has been fine-tuned to your liking and you are comfortable with your e-bike we will fit any accessories you may have ordered – or those you might already have – a favourite old saddle perhaps, a particular bell, or pair of trusted hand-me-down panniers.

    Only when we are certain you are completely confident in your e-bike choice and understand how everything works will we leave you to enjoy your new found freedom.

    The cost of this personal service varies depending on your location and whether you would prefer evening or weekend delivery, please email or telephone us for an estimate.

    No quibble 100% money-back guarantee:

    In the unlikely event that you’re not 100% delighted with your e-bike after the test-ride we simply take it back and either return later with alternative model of your choosing, or give you a 100% refund*.

    *Note: After you have inspected the bike, completed the test ride and agreed that this is the right bike for you, the sale will be complete. Please be sure you are happy with everything before we leave as we cannot accept returns once our delivery staff have driven away unless the e-bike can been shown to have a design or manufacturing fault. We then retain the right to determine the appropriate remedy, be that on-site repair or replacement of a part, a replacement electric bike, or full or partial refund. If the reason you decide not to accept the bike could have been established easily before you ordered it (eg order a white bike and later decide you prefer black) we reserve the right to make reasonable charges for delivery and or any work done to the bike prior to delivery.

    Parts and labour warranty:

    A solid manufacturers warranty is a key benefit of choosing one of our quality European made e-bikes. In the unlikely event that a component fails a replacement will shipped to us from Holland or Germany, usually within 24hrs, and fitted free of charge either at our Suffolk workshop, or at your home if you have purchased our on-site service option.

    Note: All our e-bikes carry a minimum two year warranty; please see e-bike specification table for model-specific variations.

    Evening and weekend delivery:

    Because few of us are at home during working hours these days, we offer the option of our personal home delivery service on Saturdays and Sundays, and evenings during the week.

    On-site service:

    Convenient dates for your service visits are arranged with our staff when we deliver your bike.

    Experience has taught us that regular preventative maintenance is much better than simply reacting to problems as and when they occur. By choosing our on-site service option you’ll have the peace of mind that potential problems are likely to be identified and dealt with before they arise, thereby helping ensure your e-bike is safe and in good working order.

    In the unlikely event that an unexpected problem arises – for example a puncture or broken front light – simply call or email us to bring forward a scheduled service and we will visit and carry out repairs.

    Note: If you would prefer to bring your e-bike to our Suffolk workshop for servicing, the cost is £40 plus VAT.


    The table below summarises the delivery and after sales service packages we provide. Please note that the guide prices below for home delivery, onsite servicing and insurance costs may vary according to your location. Please contact us by email or telephone for an accurate quote.

    Bronze Silver Gold
    FREE £199 £399
    Fully commissioned and road tested e-bike
    Fully assembled e-bike delivered direct to your door by our expert staff
    No quibble 100% money-back guarantee
    Parts and labour warranty
    Evening and weekend delivery
    2 on-site service visits
    Courtesy e-bike


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