EBS BergFex Umbausatz: schnelles E-Bike

EBS BergFex Umbausatz: schnelles E-Bike
The EBS BergFex e-bike retrofit kit is the mountain champion among our conversion kits.... altro

The EBS BergFex e-bike retrofit kit is the mountain champion among our conversion kits. Extreme gradients and extensive mountain rides are the specialties of the EBS BergFex. With this conversion kit you can build yourself a high performance e-bike that is light and also easy to handle, even on rough terrain. Thanks to the internal planetary gear, the EBS BergFex has an excellent climbing performance. These features are enhanced by the design of its motor: the large cooling vents in the rotor are the cause of the excellent temperature management inside the engine. This drive is thus optimally equipped for the highest loads. The EBS BergFex is your strong companion for challenging tours in mountainous areas and a powerful assistent for heavy loads.

The EBS BergFex is specially designed for very steep inclines and is therefore the ideal choice for rides in high mountains.

The EBS BergFex Conversion Kit... and its Preferred Area of Application
» extra large cooling vents » the Alps
» perfectly balanced temperature management » extreme gradients
» excellent climbing ability » demanding challenges in high mountains
The Components of the EBS BergFex E-Bike Conversion Kit Basic Box All small parts required... altro

The Components of the EBS BergFex E-Bike Conversion Kit

Basic Box

All small parts required for the conversion are located in the basic box. These include, for example, various cables, fixing materials, sensors, adapters, torque supports, cranks, plugs and various other parts depending on the retrofit kit. For some conversions we offer a basic box for the front wheel and rear wheel. Make sure that the selected base box fits your engine type.

EBS BergFex Motor 1200W

PUMA Motor

When we assembled our EBS BergFex we chose the PUMA motor because it has been known for years as one of the most powerful and durable high-power geared motors. Another argument in favour of this high-tech motor is the continuous improvements that keep the PUMA at the cutting edge of technology. These advances go so far that the PUMA now surpasses and replaces the BMC. The robust construction is designed for strong gradients and can withstand the resulting high thermal loads over long distances, due to the large cooling holes inside the engine. Despite the outstanding performance data, the engine weighs only about 4.5 kg thanks to its optimized design: under the housing there is a planetary gear made of special composite plastic, which saves a lot of material and enables the excellent climb rate of the PUMA.

The motor axles are also equipped with close-knit O-ring seals, which guarantee very good water protection. The particularly smooth freewheel ensures that you can drive with less effort even when the engine is switched off, as the engine rotates very easily in the direction of travel. The EBS BergFex 1200W conversion kit is suitable for both rim brakes and disc brakes due to the brake disc holder.



Puma CST Kassettenmotor


The Puma rear wheel motor is available as a cassette motor. The integrated plug-in ring holder eliminates the need for a screw ring. This has the advantage that you can continue to use your existing ring. The modern cassette system enables a wide variety of selectable translation steps. In addition, group-internal cassettes give you your usual switching precision, which is clearly above that of the screw ring. The cassette motor has the usual 6-hole brake disc mounting. The housing of the Puma has also been modified. Thanks to its slimmer shape, it is now also compatible with the smaller 160 mm brake discs. Furthermore, the number of individual parts has been reduced, making the motor structure stiffer and more stable.

Display des EBS BergFex 1200W Umbausatzes

EBS Display: all Information at a Glance

With the bright and modern display of the EBS BergFex 1200W conversion kit you are always on track. The battery charge level, the current speed, the selected support level and the covered kilometres are displayed. With one keystroke you can read of the average and maximum speed and the total kilometres driven with this conversion kit. Another practical feature is the switchable backlight, which keeps the display clearly legible even when driving at night or in bad weather.

EBS Throttles

EBS BergFex Umbausatz horizontales Daumengas The EBS BergFex conversion kit comes with a thumb throttle. This allows you to control the e-bike and regulate the engine support. In contrast to our pedelec conversions, you do not have to pedal when riding, because the e-bike can also be driven only by the throttle . The engine power is not limited to 25km/h, as it is the case with a pedelec. Due to the higher power, higher speeds can be achieved. Our power control also helps to preserve the natural driving experience. Whether you attach the throttle at all is up to you - the system also works without one.
Upgrade option:Decide how you want to drive! When buying, you can choose from various ergonomic shapes, the function is the same in each case.

EBS Pedal Sensor: Mounting Without Tools, Quick Start and Short Cut-Off Time

PASEBS BergFex 1200W Umbausatz The Cadence Sensor (Pedal Assist Sensor, PAS) detects the pedalling movement of the driver and controls the motor support. It is attached to the frame in no time with a cable tie and a special double-sided adhesive tape. The divisible magnetic disc is attached to the bottom bracket axle - no further work on the bottom bracket and no assembly tools are required.

The EBS BergFex guarantees a fast support during starting and a very short cut-off time thanks to the high number of 12 magnets. The support starts already after a quarter turn of the crank, which is considerably faster than with all systems with 6 magnets. The overrun is very short: only 0.3 seconds after you stop pedalling, the motor stops. Therefore you do not need brake switches and you do not need to make any changes to your existing braking system.

The EBS pedal sensor has two Hall sensors with which it can detect whether and in which direction the pedal crank is turning. This enables him to activate the motor support only during forward movement. This means that a safe pedalling is possible at any time without the motor starting. In addition, the Hall sensors enable particularly fine control of the system and thus lead to more pleasant driving characteristics.

Note: Our separable magnetic disc is suitable for use with 4-sided bottom bracket bearings. If you have a Hollowtech II or Octalink bottom bracket, you will need a special magnetic disc. Select the EBS pedal sensor set that suits you under the menu item "Upgrade options" at the top of the page. You can find help for determining your bottom bracket on Elektrofahrrad Technik:

EBS IES 48V Controller

EBS IES Controller with Individual Power Control

Now you can even better adapt the driving behavior to your needs. The new technology allows fine adjustment of the power . This allows you to directly regulate whether you want to drive gently or vigorously. The modification is clearly shown in the more fluent step” transition. This results in better riding comfort and natural handling. With the individual power control, your pedelec can achieve a higher range, as the motor runs more energy-efficiently in lower stages and thus protects your battery.
Learn more about EBS power control.

EBS IES Controller Mode of Operation

The EBS BergFex 1200W conversion kit is controlled by a special EBS controller for IES systems. It controls the motor according to the signals it receives from the display and the pedal sensor. The controller is designed for a 48V battery with 24A permanent current carrying capacity. The robust metal housing dissipates heat and protects the electronics from damage. The controller is splash-proof and can withstand any weather.

EBS PurePower Akku für BergFex 1200W Umbausatz

48V EBS PurePower Frame Battery

The full power potential of the EBS BergFex 1200W conversion kit can only be achieved with a powerful accumulator that provides a continuous output current of at least 24 amps. Ebike Solutions offers with the shapely EBS PurePower frame rechargeable batteries exactly matched to these requirements in different capacities, in which the latest battery technology in the form of ultra-modern lithium-ion cup cells is used. All rechargeable batteries are controlled and protected by a battery management system (BMS).

Technical Details Puma Motor Puma CST Motor Motor Weight 4.3kg 4.2kg... altro
Technical Details Puma Motor Puma CST Motor
Motor Weight 4.3kg 4.2kg
Installation in Rear wheel Rear wheel
Recording Screw crane mounting Cassette recording
Motor Spoke Holder 36 36
Bolt Circle Diameter 173mm 171mm
Axle Diameter 14mm, flattening 10mm 12mm, flattening 10mm
Hub Spacing 135mm (1er - 7er screwcap) /
138-140mm (8er - 10er screwcap)
1-11-speed cassettes (no SRAM 11-speed cassettes)
Rated Power 500W 500W
Peak Input Power 1200W 1200W
Voltage 36V - 50.4V 36V - 50.4V
Construction Type Gear motor with freewheel Gear motor with freewheel
Magnet Pole Pairs 16 16
Hall Sensors Yes Yes
Temperature Sensor 10kOhm NTC 10kOhm NTC
Recuperation No No
Brake Disc Mounting Yes, 6-hole Yes, 6-hole
Cable Exit From the axis / left direction of travel From the axis / left direction of travel
Cable Length 25 - 30cm 25 - 30cm
Connector Standard HIGO EPMS


Windings Speed Constant rpm at 36V rpm at 46.8V (13S)
16T 5.7 rpm/V 150rpm 267rpm
12T 7.1 rpm/V 200rpm 332rpm
10T 8.5 rpm/V 275rpm 389rpm
Instruction & Notes Assembly of Brake Disconnectors (optional) Special brake switches... altro

Instruction & Notes

Assembly of Brake Disconnectors (optional)

Special brake switches are not necessary due to the very short overrun: As soon as you stop pedalling, the motor stops the support within 0.3 seconds. If you still want to have brake switches, you can easily adjust them at any time and for any type of brake. For this you also need our EBS cable distributor 4-fold. This has a total of four connections for the display, throttle grip (optional) and two for the brake switches.

Assembly of the Brake Disc

Front wheel and rear wheel motors are equipped with a 6-hole brake disc holder. The new housing for the PUMA is considerably slimmer than the previous model, so that now ALL brake disc sizes can be mounted. Previous PUMA models had only 203 brake discs compatible.

Note: Only use 5x8mm screws to mount the brake disc. Longer screws will block the mechanics of the motor and may damage your conversion kit. Suitable screws can be found here: 5x8mm stainless steel TORX screws.

Hub Spacing in the Rear Wheel When Using a Screw Ring

The hub spacing of 135mm depends on the utilized screw ring. For 6- and 7-fold rings require a hub spacing of 135mm, for 8- and 9-fold rings require a hub spacing of 138-140mm.

Please note: Rules and regulations for e-bikes and pedelecs can vary significantly from country to country! Please inform yourself about current rules and regulations.

Verfügbare Downloads:
Services of EBS Lacing Service: Professional Impeller Construction Gladly we take... altro

Services of EBS

Einspeichservice - Laufradbau von ebike-solutions.com

Lacing Service: Professional Impeller Construction

Gladly we take over the professional impeller construction for you. Our mechanics process only high-quality components and pay particular attention to robustness and longevity. We only use stainless steel spokes and, if technically possible, highly stable aluminium hollow-chamber rims. Please indicate in the order comment after the shopping cart how many pinions/wheels your plug-in cassette has and whether you want a certain valve type (AV/DV/SV). You can also send us your own rim for spoking instead. Please keep in mind, however, that we cannot reduce the price, as the accurate measurement requires additional work. If you would like to order a Tadpole Trike, please let us know in the order note, as it may be necessary to save differently. We will then contact you.


Umbau - und Lieferservice von ebike-solutions.com

Conversion in our Workshop

You don't want to retrofit your bike yourself? No problem, in our workshop we can convert your ordinary bicycle into an electric bicycle with the conversion kit you have requested. In addition to the retrofit, you will receive a free initial inspection!

Your Advantages with EBS All components of the conversion kit have been tested by us and... altro

Your Advantages with EBS

EBS Premium Technik: Modification

All components of the conversion kit have been tested by us and modified to our high standard. By continuously improving the individual parts and the system communication, Ebike Solutions can provide you with a perfectly matched set of replacement parts with high-quality features. The advantages of an EBS system at a glance:

  • Harmonious driving experience due to power control in the controller
  • Water protected and upgraded wiring
  • Tread sensors matching the bottom bracket, freely selectable and free of charge
  • Various display upgrades
  • Different throttle grip options
  • Easy adjustment of cable lengths through finely graduated extension cables

Cable system

All cables of the EBS Plug & Drive are equipped with water-protected plug connections – just plug them together and you're done. The length of the connecting cables is adjusted to suit typical conversions. We have extensions for all important cables in our range.

Ihre Set-Auswahl

Aktuelle Konfiguration:
0,00 € *

Prezzi incl. IVA più spese di spedizione


Mit dieser Basisbox erhalten Sie 10 % Rabatt auf alle Artikel des Umbausatzes mit Ausnahme der Anpassungen auf Kundenwunsch. Retournierte Artikel aus der Basisbox werden mit 50 % des Einzelartikelpreises erstattet. Für weitere Informationen klicken Sie bitte auf das Feld "Weitere Informationen" unterhalb von "Zum Set hinzufügen".

EBS BergFex Basisbox Vorderrad
EBS BergFex Basisbox Hinterrad
Motore Maxon MX Motore Maxon MX
Da 1.333,70 € *