badassBox 4 for GIANT / YAMAHA X-SET 2020

€139,00 €155,00 Save €16

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Description Instructions Reviews

NOTE: The BadassBox enables motor assistance up to approximately 35–37 km/h but does not maintain accurate speed data on the onboard display. As a result, riders must rely on external GPS devices (e.g., bike computers or smartphones) to obtain correct speed readings.
In contrast, the EPAspeed BOX supports assisted speeds of up to 50 km/h while preserving full accuracy of the factory speedometer — offering the most advanced contactless tuning solution currently available

Feature	❌ Conventional Tuning Chips	✅ EPAspeed BOX
Installation Time	Tool-free installation; mounts on the chainstay in approx. 1–2 minutes.	Same fast installation time (1–2 minutes), with a more secure and vibration-resistant fit.
Maximum Supported Speed	Assistance typically increases up to 35–37 km/h, depending on wheel size.	Same assistance range of 49-50 km/h, but with higher measurement accuracy thanks to improved sensing.
Speed Display Accuracy	Output speed on the bike’s display becomes random and highly inaccurate, requiring an external GPS device for correct speed readings.	Maintains correct display readings using a 1 : 2 speed-correction algorithm, providing accurate speed feedback without external devices.
Battery Lifetime	Approx. 5,000 km or ~6 months under regular use.	Approx. 8,000 km or ~12 months, depending on conditions — engineered for extended service life.
Build Quality	Uses standard materials; the pin-lock mechanism is prone to wear and may break under repeated removal or vibration.	Reinforced enclosure designed to lock directly into the speed sensor with enhanced durability and anti-vibration structure to prevent failures.
Included Components	Box, magnet, battery. Spacer not included, which may be required for some chainstay geometries.	Box, magnet, battery. Includes multiple spacers, anti-vibration shims, and zip ties for universal and secure fitting.

👉 Click here to view the EPAspeed BOX for Giant / Yamaha

badassBox 4 for GIANT / YAMAHA X-SET 2020

E-BIKE TUNING WITH THE BADASSBOX FOR PEDELECS WITH GIANT and YAMAHA MOTOR

Our newest and best e-bike tuning for the Giant and Yamaha mid-mounted drive. New streamlined casing with patented snap-lock fastening for even faster mounting and release. Even more robust thanks to a special potting compound from the automotive industry. New electronics for even greater range with a single AAA battery. A quality product designed and manufactured in Germany.

Attention, you need this set only if the Yamaha Sensor (first picture) is integrated in the fork-end of your bike.
If the integrated sensor looks like the one in the second picture, then it is the Giant Sensor. Then you need the badassBox 4 Giant 2020.
If the Giant / Yamaha Sensor (first picture) is mounted easily accessible on your chainstay, you only need a badassBox 4 Giant / Yamaha.

The badassBox 4 Yamaha X-Set includes all the parts you need to mount the badassBox 4 on your e-bike with a Yamaha mid-mounted motor and Yamaha Sensor integrated in the fork-end:

badassBox 4 Yamaha/Giant

Universal Adapter

Spoke Magnet with Thumb Screw

With the badassBox 4 Yamaha X-Set you not only get all the necessary parts to tune your e-bike in one 'click', but you also save money.

INSTALLATION

The integrated Yamaha Sensor is located in the area of the fork-end.
To get to the sensor you have to dismount the rear wheel.

Find the position of the integrated sensor^* in the fork-end of your e-bike.
^*The sensor shape shown is an example.

Undo the screws of the bracket that holds the sensor^* is fastened to the fork-end.
^*The sensor shape shown is an example.

Fasten the Universal Adapter with cylinder head screw, washer and nut (included in delivery) to the Yamaha Sensor^*.
^*The sensor shape shown is an example.

Now you can attach the Universal Adapter with mounted Yamaha Sensor^* on the chainstay with supplied cable ties.
^*The sensor shape shown is an example.

Slide the badassBox onto the adapter until it clicks into place.
Reinstall the rear wheel.
Mount the spoke magnet and align it with the edge of the badassBox housing. That's it. Have fun with your faster e-bike!