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The BULLS E-Core EVO TR 27.5+ is a high-spec eMTB that will speed to the top of almost anything . Its ability to carry twin lightweight 375Wh batteries (one supplied with bike, second available as an optional upgrade) give a world-beating capacity of 750Wh total power. Sminano’s E8000 drive unit is perfectly syncronysed to a groupset designed for the rigors of ultimate off-road riding. It just doesn’t get any better than this.

High-end Rock Shox 120mm suspension will keep you in one piece on the way up and Magura 180/180 hydraulic disc bakes provide ample stopping power on the way back down.

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

Motor Power
Battery Location
In Frame, removable
Battery Chemistry
and Capacity

Li-Ion, 750 Wh
(36 Volt x 21Ah)

750 36 21

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 E-Core EVO 2 TR 27.5+


The high-power Shimano Steps E8000  motor delivers a smooth 70Nm of torque capable of taking you to the top of almost anything. There are three assistance modes: Eco, Trail and Boost, with the latter providing 300% assistance. The E8000 system also has a walk assist function to help manage the bike when you’re pushing not riding!


 Small is beautiful

The Shimano drive unit’s small form factor enables BULLS designers to incorporate shorter chainstays, this allows E8000 equipped bikes to benefit from the decades of frame geometry development that has gone into manual MTBs. Additionally, the very narrow width of the E8000 allows the retention of manual MTB’s narrow pedal position, resulting in a natural and efficient pedal stroke.  Combining these features ensures a perfectly balanced riding position that other manufacturers can only dream of.

Weight the enemy

At 2.8kg,  the STEPS drive unit is a full kilo lighter than the Bosch drive system. While the Bosch unit uses a small drive sprocket that’s geared up from the crank (more moving parts = more mechanical losses), the Shimano is direct-drive, enabling use of 34T or 38T chainrings. The image shows rearward location of the hollowtech shaft and short chainstays.

Tune and Update with Bluetooth

Using the Shimano E-tube app on your pc, tablet or smartphone, you can adjust the preset power modes on your E8000 powerd e-bike to create personalized assistance levels on the fly with Bluetooth connection. No cables needed!



The Bulls has been designed with twin 375Wh batteries hidden in the down tube giving a total capacity of 750Wh. You can run with 1 to reduce weight on short runs, or fit a second if you’re planning longer trials. The Bulls comes with one battery so please let us know if you’d like us to supply a second (price TBA). The batteries, produced by Germany’s BMZ, are locked into the frame with a key and can be charged on or off the bike.



Shimano Deore: 

Shimano’s Deore 10 speed range has always been  a practical, no-nonsense, well-performing component set that works well in all but the most arduous situations. Slightly heavier than XT/XTR and a little less precise but it’s a great option for those not wishing to splash out on XTR or XT gear sets.



 Rock Shox + LYTRO

The 120mm Rock Shox gas unit allows full adjustment of bounce/rebound damping, BULLS LYTRO 120mm gas forks perform well over rough trails and come complete with remote handlebar lock-out.

3-position adjustment

Low-speed compression

High-speed compression

Low-speed Rebound

High-speed Rebound

Air spring pressure 




▶ Magura MT5 front, and MT 4 rear

Huge braking performance and low weight doesn’t have to be expensive! The braking power of 4 pistons, adapted from Magura’s motor sport experience, gives you all the fine control and maximum stability you will ever need, even on the most difficult terrain, and on long descents.



This electric mountain bike has an inductive transfer Monkey Link system built-in! Monkey Link makes it possible to fit a range of accessories such as bicycle lights and mudguards with built in lights to the bike with no additional electrical connections – accessories such as front and rear lights are powered from the electric bike’s main battery via electromagnetic Inductive transfer.




BULLS Lytro RL-R, 120mm

REAR SHOCK   Rock Shox Deluxe RT, 120 mm
BAR   FSA Gradient Riser
STEM   Monkey Link
SEAT POST   Fox Transfer Factory Travel Internal Kashima (39/44 = 100 mm / 49/54 = 125 mm)
DRIVE UNIT   Shimano steps E8000 70Nm
BATTERY   Twin Core, 375 Wh (expandable to 750 Wh)
SHIFTER   Shimano Deore RD-M6000GS
REAR DERAILLEUR   Shimano Deore SL-M6000
CASSETTE   Shimano CSHG500  10 11-42T
BRAKE   Magura MT5 (front) and MT4 (rear) hydraulic Discs, 180/180 mm
WHEELSET   BULLS Eccentric 35, tubeless ready
TIRE   Schwalbe SnakeSkin, TLE, Apex, Addix SpGrip, 70-584, 27,5 x 2.8

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


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

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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


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