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The BULLS AMINGA E1 is amazing value for money, a quality electric mountain bike for under £2000! It’s built on 27.5 inch rims – this wheel size performs well on hard surfaces and even better off-road. It features BOSCH’s most powerful Performance Line motor producing 63Nm. The BOSCH battery is removable and can be locked in place with a key for added security. Tektro HD-M285 hydraulic disc brakes provide excellent stopping power, Suntour forks with remote lock-out can cope with the toughest terrain.

If you’d like a test-ride please call in at our London, Leicester or Suffolk branches, or email to arrange a date.


bulls electric mountain bike aminga e1

Motor Power
Battery Location
Downtube Rmovable
< 90
Battery Chemistry
and Capacity

Li-Ion, 500 Wh
(36 Volt x 14Ah)

500 36 14

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)


bulls electric mountain bike


Equipped with the BOSCH Performance Line electric drive unit the AMINGA E1 e-mountain bike will carry you effortlessly over all terrain. A great all rounder and great value for money, equally at home on the tarmac or off road tracks.


▶ Electric Bike Drive System

▶ A drive system that reads your mind:

Three sensors measure torque, speed and acceleration more than 1,000 times per second, ensuring perfect integration between you and your e-bike. This adaptive power characteristic of the Bosch Performance Line drive system is controlled by your pedal pressure, this ensures smooth assistance in normal riding conditions and the seamless transition to full power for strong acceleration when you need it.

▶ Peak power: 500W (250 max continuous)

▶ Peak torque: 63 Nm

▶ Assistance level: ECO: 50%

       TOUR: 110%

       SPORT: 170%

       TURBO: 260%

The level of assistance ranges between 50% and 260% depending on which power level you choose; 100% assistance equates to the motor doubling your pedaling force.


▶ Electric Bike Battery


Bosch’s lithium-ion based e-bike batteries are lightweight, compact and available in 400Wh and 500Wh capacities. With unrivaled energy density Bosch batteries offer market leading range to weight ratios whatever size you choose.

They are easy to fit and remove, and can be charged either on the bike or unlocked using its key for charging at home or work. The battery management system provides optimal protection against overload, overheating and short circuit.

Modern Bosch lithium-ion batteries do not suffer from ‘memory effect’ or self-discharge issues. Your battery will charge to 50% in about 2 hours, depending on the charger and battery capacity.



▶ Electric Bike Display & Assistance Control

Bosch Purion e-bike display smallThe Bosch Purion display gives you all the information needed to monitor and adjust your e-bike. The illuminated screen is clearly visible under all lighting conditions and  thumb switches enable you to change assistance levels while keeping your hands safely on the handlebar. As well as speed, range, battery level and trip functions the display also lets you know  when it’s time to haver your e-bike serviced!

▶ micro USB connectivity

▶ five assistance levels

▶ back-lit LCD

▶ info on charge status, speed, assistance level, range, trip and total distance.





The Shimano Deore 9-speed system delivers accurate and dependable shifting. It’s matching Alivio selector ensures perfect synchronization and has a built-in micro adjuster to compensate for cable wear.


▶ Suntour XCM Air Suspension

The BULLS Anmiga is fitted with quality Suntour XCM 100mm AIR forks. These are designed with serious mountain biking in mind and will provide may years of dependable service. The yoke features a hydraulic lock-out and the stanchions are forged from aluminium to keep weight down whilst not compromising strength.


▶ Tektro HD-M285 Hydraulic Disc Brakes

Tektro HD-M285 hydraulic disc brakes feature dual pistons and give good stopping power without braking the bank.

It is a solid durable system with an exceptionally smooth operating feel and good feed back – it’s easy to apply exactly the right amount of stopping power whatever the road conditions. As with all Tektro hydraulic disc brakes, maintenance is simple and spare parts are readily available worldwide.



Drive unit Bosch Performance Line
Engine type Middle motor
Torque 250 Watt
Assistance speed up to bis 25 km/h
Power pack Bosch
Power type Lithium Ionen
Range up to 190 km
Battery voltage 36 V
Battery capacity (Ah) 11 Ah, 13,4 Ah
Battery capacity (Wh) 400 Wh
Charging time 100% ca. 3,5 hrs
Charging time 50% ca. 1,5 hrs
Frame size 37 cm, 41 cm, 46 cm
Wheel size 27,5 inch
Fork SR Suntour XCM DS HLO
Travel 100 mm
Rear derailleur Shimano Deore RD-M592-SGS Shadow
Shifter Shimano Alivio SL-M4000
Gears 9 derailleur gears
Crank set
Brakes Tektro HD-M286 hydraulic disc brakes
Brake levers Tektro HD-M286
Saddle BULLS
Seatpost STYX Aluminium
Chain KMC
Spokes Nirosta
Hubs STYX Aluminium
Tires STYX Ace of Pace
Tyre size 57-584 (27,5 x 2.25)
Handelbar STYX Aluminium
Pedals Wellgo
Weight ca. 21,9 kg

Specifications correct at product launch date and may vary during production year.


bulls electric mountain bike aminga e1

BULLS make 77 different models of electric mountain bike, each designed to meet a specific need – if you would like us to help you find the perfect BULLS for you please email or call Clare or James on 0208 960 9848 (London), Keith on 01728 830 817 (Suffolk), or Martin at our Midlands branch on 0116 3666 980 (Leicester).

All of our electric bikes are fully assembled, checked and road-tested by our expert staff prior to delivery.

High quality electric bikes last for many years so it’s important you get the one that’s right for you – but there are so many to chose from! Online research can help you narrow the options but by far the best way to ensure you’re making the right choice is to visit one of our branches, discuss you needs with one of our friendly experts, and test-ride one or all of the many brands and models we stock – there’s no substitute for spending time in the saddle!  Once you’ve made your choice you can ride your new e-bike away. Don’t worry if you can’t spare the time or are just too far from one of our shops, we’ll be happy to help you choose over the phone or via email and deliver your e-bike to your home at a time that best suits you.

▶ Personal Home Delivery

no brown box delivery1

If you choose this option our experienced staff will deliver your electric bike in person 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. We’ll 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!

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.

Note: After you have inspected the bike, found it to be in good working order, and agreed that this is the right bike for you, the sale will be complete. If we have delivered in person 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 (e.g. you ordered a white bike and later decided you prefer black), we reserve the right to make reasonable charges for delivery and or any work done to the bike prior to delivery.

▶ 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.

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.

▶ Courier Delivery

Before being delivered via courier your e-bike will be fully assembled and road tested. Once we’re happy with all aspects of its performance we will carefully pack it in a sturdy box ready for shipping.  Please note that the pedals are removed and handlebar rotated inline with the frame for packing so these will need to be fitted and adjusted on arrival. This is simple to do but should you like reassurance we will happily talk you through the process over the phone, we can also arrange a phone-call with your local, trusted bike mechanic if you decide you would rather give the job to them.


Telephone: 01728 830 817 (Suffolk), 0208 960 9848 (London), 0116 3666 980 (Midlands)
Email: info@justebikes.co.uk


no brown box delivery1


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