EBT Unlock Key
EBT Unlock Key – Software Tuning in Your Browser

The EBT Unlock Key is the world’s first fully browser-based solution to unlock Bosch e-bike motors from Gen1 to Gen4 – without any software installation, apps, or dongles. You only need your browser (PC or MAC), a USB cable, and your personal license key.
Unlock your Bosch e-bike in just a few steps:
- Purchase your license (1, 2 or 4 unlock keys available)
- Receive your key by email
- Connect your Bosch e-bike via USB to a browser (Windows PC or MAC)
- Open the web platform (link after purchase)
- Enter your key and unlock your bike
- Re-lock anytime via the same browser tool
Features at a Glance
- 100% browser-based – no software required
- No hardware needed – just your PC or MAC and USB cable
- Fully reversible – unlock and re-lock anytime
- Works after battery or display swap
- Compatible with BES1 & BES2 Bosch systems
- No speed chip, no app, no installation
System and Display Behavior on Bosch Motors
When using the EBT Unlock Key with Bosch E-Bike motors of Gen2 through Gen4, users will notice that the speed displayed on the onboard computer is shown at exactly half of the actual riding speed. This effect is by design and stems from how Bosch systems process and limit speed-related signals once tuning is activated. It does not impair functionality or riding performance. Importantly, this behavior does not indicate a malfunction. Users of Bosch Gen1 motors benefit from accurate and full speed display values during operation. The EBT Unlock Key works reliably across all supported systems, and no 504 error messages or similar issues occur.

Important Notes
- Not compatible with Bosch Gen1 HMI displays
- Not compatible with Bosch Smart System (BES3)
- Intended for private/off-road use only (not legal on public roads in most countries)
Bosch E-Bike Motor Compatibility Overview
This table provides a detailed overview of Bosch e-bike motors from Gen1 to Gen4, including their connector type (BES1, BES2, or BES3), compatible displays, and whether the EBT Unlock Key can be used to remove the 25 km/h speed restriction.
Motor Name | Display | Connector Type | EBT Unlock Key | Correct Values |
---|---|---|---|---|
Bosch Classic (Gen1) | HMI | BES1 | No | – |
Bosch Classic (Gen1) | Intuvia | BES1 | Yes | Yes |
Bosch Active Line (Gen2) | Intuvia / Nyon / Purion | BES1 | Yes | No |
Bosch Performance Line (Gen2) | Intuvia / Nyon / Purion | BES1 | Yes | No |
Bosch Active Line Plus (Gen3) | Intuvia / Nyon / Purion | BES2 | Yes | No |
Bosch Performance Line (Gen3) | Intuvia / Nyon / Purion | BES2 | Yes | No |
Bosch Performance CX (Gen4) | Intuvia / Kiox / Nyon / Purion | BES2 | Yes | No |
Bosch Smart System (Gen4 & Gen5) | Kiox 300 / LED Remote / Intuvia 100 / ... | BES3 | No | – |
Note: The EBT Unlock Key is a browser-based, license-controlled tuning solution. It supports all Bosch e-bike systems with BES1 and BES2 connectors, except Gen1 models with HMI display. Bosch Smart System (BES3) motors are not supported.

Still have questions?
Visit our step-by-step guide!
Looking for tuning hardware? Visit our german store: www.ebiketuningshop.com
E-Bike Tuning: No chip. No app. No excuses.
Experience the freedom of digital tuning – safe, simple, and fully browser-based.
Read more: Step-By Step | EBT Unlock Key FAQ | Unlock Your Bosch E-Bike