Badass Box 4 Sachs

Finally, this proven tuning tool is also available in a version especially for E-Bikes with SACHS engines. The 25 km/h speed limit will be completely lifted.
SKU: badass-box-4-sachs

Availability: In stock

Incl. 19% Tax
Product Description

Badass Box 4 for Sachs

Sachs E-Bike motors are considered to be extremely powerful, but unfortunately the preset 25 km/h speed limit reduces the riding pleasure. This is where the Badass Box 4 for Sachs can help, because this ingenious tuning tool simply removes the annoying speed limit completely. Therefore the 25 km/h limit will be a thing of the past and you can finally enjoy the full power of your Sachs drive system!

Contactless E-Bike tuning

After the box has been attached, it transmits a modified signal so that the 25 km/h speed limit is lifted. This happens contact-free, without any intervention in the engine electronics or software. Since there is no electrical connection to the engine, it cannot be damaged unintentionally.

A great advantage of the Badass Box 4 is that you can restore the original condition of your E-Bike at any time and in a few seconds: Simply pull off the box and move the spoke magnet to its original position – after that, the E-Bike has its original riding characteristics back and the engine support ends at 25 km/h again.

Important note: Due to the special function of the Badass Box 4, an incorrect speed is shown on the E-Bike display when the tuning is active (this also applies to values derived from it).

Therefore our tip: Simply use mobile, GPS-based additional devices such as bicycle computers or smartphones to display the correct speed.

For the best possible protection against mechanical stress and moisture, each Badass Box is glued into the housing with a special casting compound and completely sealed. Each box is tested for correct functionality before and after sealing. By the way, the casting compound originates from the automotive industry.

Made in Germany.

Advantages over previous versions

Compared to the previous versions, the Badass Box 4 has been optimized in many ways, making it the best version of this tuning tool ever:

The housing has been completely redesigned and made slimmer so that it can no longer be too narrow when it is installed (the sensor application is now only a minimum of 3 mm).

At the customer's request, an additional, optional fastening using cable ties on the snap lock is now also possible.

The previous CR2- was replaced by a more powerful AAA battery. This battery has a very long range and only needs to be changed after more than 7000 km or once a year. No tools are needed to replace the battery, and suitable replacement batteries are available almost everywhere. The high range is made possible by the specially developed, patented FEET field enhancement technology ("Field Enhancement & Elimination Technology").

Easy installation

Unlike many other E-Bike tuning tools, the Badass Box 4 for Sachs is very easy to install and can be removed just as quickly. And you do not have to open the engine to attach the box, too.

You just have to mount the Badass Box over the Sachs speed sensor next to the rear wheel. As soon as the snap lock engages, the box is securely attached to the sensor. If desired, you can also secure the Badass Box additionally with a cable tie.

For the initial assembly we recommend replacing the screw of the spoke magnet with the supplied thumb screw. This allows you to move the magnet without any tools in the future. After placing the Badass Box on the sensor, the spoke magnet must be moved in the direction of the snap lock. When the spoke magnet touches the box, the magnet must be placed as close as possible to the box and has to be rotated by 90° - this completes the installation.

To undo the tuning, you simply have to remove the box again and move the spoke magnet back to its original position - thanks to the thumb screw, this can be done very quickly and without tools. The E-Bike is then restored to its original condition.

Badass Box 4 for Sachs – Technical data

  • Dimensions: 61 x 43 x 15 mm
  • Weight: 27g (with battery 37g)
  • Battery: 1.5V AAA battery (IEC R03)

Badass Box 4 für Sachs – Compatibility

Compatible with E-Bikes with Sachs engines.

Scope of delivery

  • Badass Box 4 for Sachs
  • AAA battery
  • Thumb screw


Additional Information
Additional Information
Manufacturer Badass Box
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