Name: badassBox BOSCH G4-SET
Brand: badassBox
SKU: 4260475460853
Price: 154.0 EUR
Availability: OutOfStock

Description Instructions Reviews

NOTE: The BadassBox does not retain accurate speed data on the e-bike’s display. To monitor your actual speed, you’ll need an external GPS device such as a bike computer or smartphone. If maintaining accurate speedometer readings is important to you, we recommend choosing the EPAspeed BOX — the only contactless tuning solution that preserves full speedometer functionality

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 35-37 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 : 1.5 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 Bosch Slim Sensor

badassBox BOSCH G4-SET

E-BIKE TUNING WITH THE BADASSBOX FOR PEDELECS WITH BOSCH MOTOR

Our newest and best e-bike tuning for all Bosch mid-mounted drives incl. 4th generation/2022. 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, only the G4 Speed Sensor (first picture) is compatible with this set
If the integrated (in dropout) sensor has the shape of the sensor in the second picture (Bosch Sensor), then you need the badassBox 4 Bosch X-Set

If the Bosch Sensor (second picture) is mounted easily accessible on your chainstay, you only need a badassBox 4 Bosch.

The badassBox 4 Bosch G4-Set includes all the parts you need to mount the badassBox 4 on your Trek e-bike with Bosch mid-mounted motor and integrated G4 speed sensor:

badassBox 4 BOSCH

G4 Adapter

Spoke magnet with Thumb Screw

With the badassBox 4 Bosch G4-SET you not only get all the necessary parts to tune your e-bike in one 'click', but you also save money.

The integrated Bosch Sensor is located in the area of the dropout.
To get to the sensor you have to dismount the rear wheel.

With the included button head screw you can screw (for this you need a 2.5 mm Allen key) the G4 speed sensor to the G4 adapter (1).

(2) A suitably cut pad made of self-adhesive elastic foam is included as an option. This pad can be glued to the G4 adapter to attach it to the chain stay without the risk of scratches.

With the enclosed cable ties (3), you can mount the G4 adapter including screwed G4 speed sensor at a suitable location on the chain stay (4), where it is possible to slide the badassBox over the adapter.