Warning: Tuned e-bikes & e-scooters are not permitted within the road traffic regulations!

Bosch and Ninebot Tuning – Unlock Full Power!

Push the limits of your ride with our revolutionary digital tuning license keys. MountainTuning gives you full control: No hardware. No app. No limits. 

EBTsmart Unlock Key – Unlock Bosch Smart System motors via USB & browser.
EBT Unlock Key – Unlock Bosch Gen1–Gen4 motors via USB & browser.

Choose your unlock key!

Browser-based tuning for modern Bosch e-bikes

Unlock more freedom without chips, apps or permanent hardware changes

MountainTuning focuses on clean, browser-based unlocking solutions for compatible Bosch e-bikes. Choose your Bosch system, check compatibility and activate directly through your browser.

Bosch e-bike tuning

Bosch E-Bike Tuning – Unlock More Speed

Bosch e-bikes are known for reliability, smooth motor support and strong everyday performance. But many riders want more than the factory-set 25 km/h speed limit. That is exactly where our browser-based Bosch tuning solutions come in.

With the EBT Unlock Key, you can unlock many compatible Bosch Gen1 to Gen4 e-bikes on BES1 / BES2 – completely without a chip, without motor disassembly and without software installation. Simply connect your bike via USB data cable, open the browser-based platform and activate your personal licence key.

NEW: Bosch Smart System / BES3 For compatible Bosch Smart System / BES3 e-bikes, we now offer the EBTsmart Unlock Key. This browser-based solution works with many Smart System bikes with or without rim magnet. In Stage 1, assistance can be increased to 32 km/h while keeping speed, distance and mileage values correct.

Whether you ride a classic Bosch system or a modern Smart System bike, MountainTuning offers a hardware-free unlocking solution designed for riders who want more freedom, more comfort and a cleaner alternative to traditional tuning modules.

Video Guides

Installation videos for EBTsmart Unlock Key

Watch our step-by-step tutorials for browser-based Bosch Smart System tuning. Choose the correct video for your language.

EBTsmart Unlock Key Installation – English

English walkthrough for the browser-based Bosch Smart System unlock process with the EBTsmart Unlock Key.

EBTsmart Unlock Key Anleitung – Deutsch

Deutsche Videoanleitung für die browserbasierte Freischaltung von Bosch Smart System E-Bikes.

Latest from MountainTuning Blog

Latest Bosch tuning guides and compatibility updates

04.05.2026 Bosch Performance Upgrade 2.0 (2026) Firmware 19.24.0, Smart System & EBTsmart compatibility explained. 02.05.2026 Bosch Smart System Tuning 32 km/h or 45 km/h – which EBTsmart setup is right for you? 01.05.2026 Bosch Display Behaviour After Tuning Why your speed and mileage values may look different after unlocking. 30.04.2026 Bosch Smart System Tuning 2026 What actually works? 27.04.2026 Bosch BES2 or Bosch BES3? Identify your Bosch e-bike system. 22.04.2026 EBTsmart Unlock Key Compatibility Compatibility with current Bosch Smart System firmware.
Legal notice

Tuned e-bikes are not permitted for use on public roads unless they meet all applicable legal requirements. These solutions are intended for private property use only. Please check your local regulations before use.