Badass Box 4 for Giant

TYPE: Yamaha Syncdrive

VENDOR: Badass Box

154,00 €149,00 €

You Save: 5,00 € (4%)

Payment & Shipment
Customer reviews

Badass Box 4 for Giant motors

A proven and practical tuning tool, this time in a version especially for Giant e-bikes with Yamaha mid-motors (the tool is only compatible with e-bikes with the sensor shown above left). The Badass Box 4 completely removes the 25 km/h speed limit so that you can finally use the full power of your Giant drive. After initial installation, the tuning can be switched on or off at any time by plugging and unplugging the Badass Box and moving the supplied spoke magnet.

Please note that when tuning is switched on, an incorrect speed is displayed (also applies to values derived from this). Tip: You can use GPS-based additional devices such as smartphones or cycle computers to display the correct speed when tuning is active.

Attention: If you have a different sensor (the crossed-out one at the top right), you need the Badass Box Giant 2020!

The Badass Box 4 has some significant improvements compared to the previous models:

-The box has been slimmed down so that there can no longer be any installation situations that are too tight (the sensor application is now only 3 mm).

-The O-ring of the predecessor model has been replaced by a patented snap lock, so that the box can be plugged or unplugged faster than ever before.

- Even more robust and insensitive to moisture, as the electronics in the box are sealed with special potting compound from the automotive industry.

- New AAA battery ensures a much longer range. Batteries of this type are available practically everywhere and only need to be replaced after more than 7,000 km or 1 year. This is also due to the specially developed, patented "FEET" field enhancement technology ("Field Enhancement & Elimination Technology").

- Now additionally with optional fastening security by means of a cable tie on the snap lock.

- Double quality control. Every Badass Box is tested for correct functionality before and after casting.

- The Badass Box 4 for Giant is 100% Made in Germany (developed and manufactured in Germany).

How it works

The Badass Box is placed on the speed sensor of the e-bike and then sends a modified signal to the motor, which leads to the speed limit being lifted. This happens contactless and without direct intervention in the motor electronics, so that damage to the motor is excluded.

Badass Box 4 for Giant - Installation & Activation

The initial installation of the Badass Box 4 is simple; there is no need to open the engine.

In principle, the Badass Box 4 for Giant simply needs to be fitted over the speed sensor next to the rear wheel. As soon as the snap lock engages, the box is securely attached to the sensor. If you wish, you can also secure the Badass Box with cable ties.

Please note that you have to replace the original magnet with the supplied spoke magnet when mounting the Badass Box for the first time. This spoke magnet works in the same way as the original magnet, even without the Badass Box attached. However, when the box is attached, the spoke magnet is needed for the patented field amplification technology to function.

After the Badass Box has been attached to the speed sensor, the spoke magnet must be moved towards the edge of the housing in the direction of the snap lock. If the spoke magnet should touch the Badass Box, one has to place the spoke magnet as close as possible to the Badass Box and turn it by 90° - this tunes the e-bike and removes the speed limit.

To end the tuning, simply remove the Badass Box 4 and move the spoke magnet back to its original position. Now the e-bike has its original driving characteristics back and the motor support ends at 25 km/h again. The current speed is also displayed correctly again.

Badass Box 4 for Giant - Compatibility

All Giant e-bikes with Yamaha mid-mounted motor.
For compatible sensor see picture above.

Scope of delivery

- Badass Box 4 for Giant
- AAA battery
- Spoke magnet with lobe screw

Badass Box 4 for Giant - Technical data

- Dimensions: 61 x 39 x 15 mm
- Weight: 27g (with battery 37g)
- Battery: 1.5V AAA battery (IEC R03)

Payment & Shipment

Delivery time, Shipping costs, Minimum order value und Payment methods:

Delivery time

Delivery time is 1-8 business days within Germany. Postal delivery time outside Germany may take longer.

Shipping area

We ship to Belgium, Bulgaria, Denmark, Estonia, Finland, Germany, Greece, Ireland, Iceland, Italy, Croatia, Latvia, Lithuania, Luxembourg, Malta, Netherlands, Austria, Poland, Portugal, Romania, Sweden, Slovakia, Slovenia, Spain, Czech Republic, Hungary, Cyprus.

For shipping to Germany please use our german shop.

For a solution to Switzerland and Liechtenstein please see here.

We do not ship to the USA, France, Canada (including all overseas territories) and generally outside the EU.

Shipping costs

The shipping costs for Germany are 3,50 Euro. The shipping costs are waived from an order value of 180 Euro. For countries within the EU the shipping costs are 9,90 Euro. The shipping costs are waived from an order value of 300 Euro. We ask you to cover the cost of any return shipment yourself. Please note that customs fees may apply in third countries outside the European Union.

Minimum order value

The minimum order value is 25 Euro. Only from this amount you can use prepayment or PayPal and bank transfer as payment methods.

Maximum order value

The maximum order value for orders outside the EU is 1.000 Euro. The maximum order value within the EU is 12.500 Euro.

Payment in advance bank transfer

Please transfer the total amount with your order number to our account which you received in the confirmation email. Please note that bank transfers within Germany can take up to three working days. Transfers from abroad, especially from Austria and Switzerland, usually arrive very quickly. From other countries, transfers can take a little longer on average.

Payment in advance Paypal

At the end of the order process you will be redirected to the page of Paypal. There you can initiate your payment. As soon as the Paypal transaction is completed, the status of your order will change in the store. The goods will then be shipped as soon as possible.


Comparison of e-bike tuning products




Badass Box

RedPed / BluePed /






Sx2 Dongle


Software (Module)
Box Module Module Module Module (Kit)
Module /
Module /
Range of functions ***** ***** * ***** **** *** *** *** *** / ** *

Easy installation of the tuning

***** ***** **** ** ** ** ** ** / * ** / * *

Invisible after installation

***** ***** * ***** ***** ***** ***** ***** ***** / **** ****

Switching on / off while riding

Gerät, Display
App, Display
(App), Display
Display, Magnet
***** / ****
Display /
Dongle, (Licht)

No more tuning Module at the bike

***** ***** ***** * * * * * * / **** ****

Invisible dismantling

***** ***** ***** ***** ***** ***** ***** ***** ***** / *** ***

Easy dismantling

***** ***** ***** ** ** ** ** ** / * ** / * *

Correct display of km/h

* *****
Display, App
Display, App
* ****


***** ***** ***** ***** ***** ***** ***** ***** ***** *****


* ***** * ***** ***** ***** ***** * * *

Price range in euros

169 to
189 to 299 149 to 154 219 to
159 to 179 139 to
139 to
89 to
89 to
139 to


Customer reviews

Important: Tuning measures on e-bikes and e-scooters mean that they are no longer permitted for use on public roads. Legally permissible use is therefore only possible on private property or - if permitted - in competitions. Driving an e-bike or e-scooter modified by tuning measures on public roads can lead to criminal liability for driving without a license as well as driving without insurance coverage. Tuning measures on the e-bike and e-scooter can lead to a loss of warranty rights and manufacturer warranties. In addition, tuning measures can lead to a loss of insurance coverage and accident victim assistance benefits in the event of accidents. The e-bike (or e-scooter) modified by tuning measures is exposed to an additional load due to the higher speed, which can lead to safety risks.

Badass Box 4 for Giant

Badass Box 4 for Giant

154,00 €149,00 €