Bosch Gen4 Tuning

Bosch Gen4 engines

Bosch Gen4 Tuning overview: In this category you will find suitable tuning solutions for Bosch Gen4 (BES2) E-bike drives – especially for Bosch Performance Line, Performance Line CX and Role Line From model year 2020 onwards. At the same time, this product range is also suitable for many older customers. Bosch Gen2 and Gen3 systems relevant if they are technically related to the classic BES2 world belong. That's precisely why this category is often not only interesting for Gen4 in practice, but for the entire classic Bosch system world before the Bosch Smart System.

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Important: At Bosch, a clean separation must always be ensured. Bosch Gen4 (BES2) and Bosch Smart System (BES3) A distinction must be made. Not every Bosch Gen4 motor automatically belongs to the classic Bosch Gen4 world. Since 2022, there have also been e-bikes with Gen4 engine in Bosch Smart SystemThese bikes then require not the classic Bosch Gen4 product range, but its own category Bosch Smart System Tuning.

That's exactly why you should always check the following before buying. System in the background determine. A classic Bosch Gen4 BES2 is something different than an outwardly similar Bosch bike with Smart System / BES3A clear classification according to System, Charging plug, Display and if necessary eBike Flow App This is therefore particularly important. If your e-bike is equipped with the eBike Flow App working, that strongly speaks for Bosch Smart System / BES3 and against the classic Gen4 world. You can find a detailed overview in the Bosch Tuning Finder or  Bosch Tuning Guide.

who for Bosch Gen4 BES2 Anyone looking for a particularly powerful and proven hardware solution will find several key products in this category. These include, in particular, RedPed 3 for Bosch, PearTune MSO 4.0 for Bosch and VOLspeed V4 for Bosch Gen4These products belong to the category Bosch Gen2 / Gen3 / Gen4 among the most important classic hardware options.

One particularly interesting alternative is the EBT Unlock KeyThis solution enables the unlocking. browser-based via USB and without a traditional chip. The EBT Unlock Key is for many Bosch Gen1, Gen2, Gen3 and Gen4 systems intended and thus aimed at the classic Bosch world before the Smart SystemThe important thing here is to clearly exclude: The EBT Unlock Key is not for Bosch Smart System (BES3) thought.

In practical terms, this means quite specifically: Bosch Gen4 is not automatically Bosch Smart System. Precisely because both worlds can appear outwardly similar, a clear system assessment before purchase is crucial. Anyone looking for a classic Bosch Gen4 BES2 Those who already own a car will find suitable and proven solutions here. Bosch Smart System / BES3 Anyone using it must switch to the product world designated for that purpose.

If you're unsure about your bike, these pages can also help you:

Important: Always check before buying whether your e-bike is truly a Bosch Gen4 BES2 uses or already used Bosch Smart System belongs. If you are unsure, please contact our [company/organization] before purchasing. Support – ideally with exact model name, year of manufacture and photos of the motor, charging plug and display.

In this category you will find the currently suitable tuning solutions for Bosch Gen4 (BES2) – and in many cases also for older people Bosch Gen2 and Gen3 systems, provided they technically belong to the classic Bosch world with anti-tuning detection.


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RedPed 3 for Bosch (Gen2, Gen3 & Gen4)
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-17%
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PRODUCT TYPE: Bosch Gen2, Bosch Gen3, Bosch Gen4

BRAND: RedPed

RedPed 3 for Bosch (Gen4) Probably the most comprehensive and best tuning tool for Bosch e-bikes ever, also compatible with Bosch Gen4 drives! This tuning tool for Bosch e-bikes impresses with its extremely wide range of functions, allowing you to tune your vehicle to...

€179,00€149,00
€179,00€149,00
PearTune MSO 4.0 for Bosch (Gen2, Gen3 & Gen4)
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-6%
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PRODUCT TYPE: Bosch Gen4, Bosch Gen3, Bosch Gen2

BRAND: PearTune

PearTune MSO 4.0 for Bosch e-bikes PearTune MSO 4.0 is the most powerful and versatile version yet of this proven Bosch tuning module. It completely removes the 25 km/h speed limit and ensures that you receive motor assistance even at higher speeds...

€199,00€189,00
€199,00€189,00
PearTune MSO 4.0 for Bosch (Gen2, Gen3, Gen4) with crank puller
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-11%
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PRODUCT TYPE: Bosch Gen4, Bosch Gen3, Bosch Gen2

BRAND: PearTune

PearTune MSO 4.0 for Bosch e-bikes with crank puller. PearTune MSO 4.0 is the most powerful and versatile version yet of this proven Bosch tuning module. This set also includes a matching crank puller for installation. The module...

€199,00€179,00
€199,00€179,00
VOLspeed V4 Bundle for Bosch Gen4
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-8%
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PRODUCT TYPE: Bosch Gen2, Bosch Gen3, Bosch Gen4

BRAND: VOLspeed

VOLspeed V4 for Bosch Gen2, Gen3 & Gen4 in a set with crank puller and FINN smartphone holder. This set combines the VOLspeed V4 tuning module with practical accessories for installation and use: a crank puller and the FINN smartphone holder are also included....

€192,80€179,00
€192,80€179,00
EBT Unlock Key – Tuning license code for 1 Bosch Gen1–Gen4
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PRODUCT TYPE: Bosch Gen2, Bosch Gen3, Bosch Gen4

BRAND: MountainTuning

EBT Unlock Key – 1 digital tuning license for Bosch Gen1 to Gen4: Browser-based activation for many Bosch Gen1, Gen2, Gen3, and Gen4 drives – without a chip, additional hardware, or software installation. The 25 km/h speed limit is removed directly online via USB...

€69,00
€69,00
EBT Unlock Key – 1 Tuning Software License for 2 Bosch Gen1–Gen4
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PRODUCT TYPE: Bosch Gen2, Bosch Gen3, Bosch Gen4

BRAND: MountainTuning

EBT Unlock Key – 2 licenses for Bosch Gen1–Gen4 EBT Unlock Key – 2 digital tuning licenses for Bosch Gen1 to Gen4: Browser-based activation for two compatible Bosch e-bikes – directly via USB and browser, without an app, software installation and...

€119,00
€119,00
EBT Unlock Key – 1 Tuning Software License for 4 Bosch Gen1-4
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PRODUCT TYPE: Bosch Gen2, Bosch Gen3, Bosch Gen4

BRAND: MountainTuning

EBT Unlock Key – 4 licenses for Bosch Gen1–Gen4 EBT Unlock Key – 4 digital tuning licenses for Bosch Gen1 to Gen4: Practical multi-pack for browser-based activation of four compatible Bosch e-bikes – without app, without software installation and without additional hardware....

€219,00
€219,00
VOLspeed V4 for Bosch Gen4 with crank puller
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-5%
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PRODUCT TYPE: Bosch Gen2, Bosch Gen3, Bosch Gen4

BRAND: VOLspeed

VOLspeed V4 for Bosch Gen2, Gen3 & Gen4 – Set including crank puller. With this set you get the VOLspeed V4 tuning module including matching crank puller – ideal for anyone who wants to prepare for installation right away. VOLspeed V4 is one of the...

€182,90€174,00
€182,90€174,00
VOLspeed V4 for Bosch Gen2, Gen3 & Gen4
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-3%
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PRODUCT TYPE: Bosch Gen2, Bosch Gen3, Bosch Gen4

BRAND: VOLspeed

VOLspeed V4 for Bosch Gen2, Gen3 & Gen4 VOLspeed The V4 is a particularly versatile tuning module for many Bosch e-bike drive systems from model years 2014 to 2022. It removes the 25 km/h speed limit and also allows for individual adjustment of the maximum assisted speed...

€174,00€169,00
€174,00€169,00
Badass Box 4 for Bosch
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-4%
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PRODUCT TYPE: Bosch Gen1, Bosch Gen2, Bosch Gen3, Bosch Gen4

BRAND: Badass Box

Badass Box 4 for Bosch E-Bike engines (Gen1, Gen2, Gen3, Gen4 & Smart System) The Badass Box 4 is only compatible with the Bosch sensor shown here, provided it's located on the chainstay. The latest and best badass yet...

€154,00€149,00
€154,00€149,00
SpeedBox 3 for Bosch Gen4 with crank puller
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-20%
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PRODUCT TYPE: Bosch Gen2, Bosch Gen3, Bosch Gen4

BRAND: speed box

SpeedBox 3.0 for Bosch Gen2, Gen3 & Gen4 – including crank puller SpeedBox 3.0 is a high-performance tuning solution for Bosch Gen2, Gen3, and Gen4 e-bikes with a round charging connector. The module completely removes the factory-set 25 km/h speed limit and also enables...

€197,90€159,00
€197,90€159,00
SpeedBox 3.0 B.Tuning for Bosch with crank puller
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-12%
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PRODUCT TYPE: Bosch Gen2, Bosch Gen3, Bosch Gen4

BRAND: speed box

SpeedBox 3.0 B.Tuning for Bosch Gen2, Gen3 & Gen4 – incl. App & Crank Puller SpeedBox 3.0 B.Tuning is one of the most powerful tuning modules for Bosch e-bikes with Gen2, Gen3 and Gen4 (BES2). It not only removes the 25 km/h speed limit...

€314,90€279,00
€314,90€279,00
SpeedBox 3 for Bosch Gen4
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-21%
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PRODUCT TYPE: Bosch Gen2, Bosch Gen3, Bosch Gen4

BRAND: speed box

SpeedBox 3.0 for Bosch Gen2, Gen3 & Gen4 – the proven Bosch tuning without an app. SpeedBox 3.0 for Bosch is a sophisticated tuning solution for many Bosch e-bikes with Gen2, Gen3, and Gen4 drive systems (BES2). The module removes the factory-set 25 km/h speed limit...

€199,00€159,00
€199,00€159,00
SpeedBox 3.0 B.Tuning for Bosch
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-11%
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PRODUCT TYPE: Bosch Gen2, Bosch Gen3, Bosch Gen4

BRAND: speed box

SpeedBox 3.0 B.Tuning for Bosch – with App & Bluetooth SpeedBox 3.0 B.Tuning is one of the most popular tuning solutions for Bosch Gen2, Gen3, and Gen4 e-bikes with a round charging connector. The module completely removes the factory-set 25 km/h speed limit and also enables...

€309,00€277,00
€309,00€277,00
MBIQ-S tuning sensor for Bosch e-bikes
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PRODUCT TYPE: Bosch Gen2, Bosch Gen3, Bosch Gen4

BRAND: MBIQ

MBIQ-S Tuning Sensor for Bosch E-Bikes Here we have a simple yet efficient tuning tool for e-bikes with Bosch mid-drive motors. The MBIQ-S is a microcontroller-based sensor solution that completely removes the speed limit of Bosch drives. Additional functions are available...

€134,90
€134,90
MBIQ-P plug-in solution for Bosch e-bikes
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PRODUCT TYPE: Bosch Gen2, Bosch Gen3, Bosch Gen4

BRAND: MBIQ

MBIQ-P plug-in solution for Bosch e-bikes. A microcontroller-based tuning tool as a practical plug-in solution. The MBIQ-P completely removes the 25 km/h speed limit of Bosch e-bike mid-drive motors. This allows the Bosch drive to unleash its full power, allowing you to travel much faster...

€124,90
€124,90
PearTune MSO 3.0 for Bosch Gen2, Gen3 & Gen4
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PRODUCT TYPE: Bosch Gen2, Bosch Gen3, Bosch Gen4

BRAND: PearTune

PearTune MSO 3.0 for Bosch (Gen2, Gen3, Gen4 & COBI) PearTune MSO 3.0 is one of the most proven tuning modules for Bosch e-bikes with a round charging connector. This version is compatible with many Bosch drive systems of generations Gen2, Gen3, and Gen4 and...

€189,00
€189,00
VOLspeed V4 for Bosch Gen2, Gen3 & Gen4 - REFURBISHED
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-9%
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PRODUCT TYPE: Bosch Gen2, Bosch Gen3, Bosch Gen4

BRAND: VOLspeed

VOLspeed V4 for Bosch Gen2, Gen3 & Gen4 – REFURBISHED Availability Note: This refurbished version is only available if suitable returns are available. If this product is currently out of stock, we recommend the regular ones. VOLspeed V4 variants as well as the...

€174,00€159,00
€174,00€159,00
sIMPLEk Pro Nano for Bosch Gen4 - "Nano Edition"
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-8%
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PRODUCT TYPE: Bosch Gen1, Bosch Gen2, Bosch Gen3, Bosch Gen4

BRAND: sIMPLEk

sIMPLEk Pro for Bosch - Nano Edition The sIMPLEk The Pro Tuning Module doesn't just remove the 25 km/h speed limit on Bosch e-bikes; you can even individually set the desired top speed via the menu. This allows you to optimally tune...

€129,00€119,00
€129,00€119,00
sIMPLEk Stick Pro Dongle for Bosch Gen4 Tuning
New
-11%
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PRODUCT TYPE: Bosch Gen2, Bosch Gen3, Bosch Gen4

BRAND: sIMPLEk

sIMPLEk Stick Pro for Bosch If you want to remove the annoying 25 km/h speed limit of your Bosch e-bike, the affordable sIMPLEk Stick Pro is a highly recommended option. This tuning dongle completely eliminates the speed limitation, so you can finally benefit from the full...

€189,00€169,00
€189,00€169,00
Badass Box 4 (Slim Set) for Bosch
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-4%
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PRODUCT TYPE: Bosch Gen1, Bosch Gen2, Bosch Gen3, Bosch Gen4

BRAND: Badass Box

Badass Box 4 for Bosch e-bike motors "Slim Set" – no longer available. Important note: This product is permanently discontinued. The suitable successor is the Badass Box 5 Bosch Slim sets. Important: This set was required if the Bosch Slim...

€159,00€154,00
€159,00€154,00
Badass Box 4 (X-Set) for Bosch
New
-7%
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PRODUCT TYPE: Bosch Gen4, Bosch Gen3, Bosch Gen2

BRAND: Badass Box

Badass Box 4 for Bosch X-Set This tuning set was specially designed for e-bikes with a Bosch motor and a Bosch sensor integrated into the dropout (see images below). The set contains not only the actual tuning tool, the Badass Box 4, ...

€159,00€149,00
€159,00€149,00
Badass Box 4 (G4 set) for Bosch
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-10%
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PRODUCT TYPE: Bosch Gen4, Bosch Gen3, Bosch Gen2

BRAND: Badass Box

Badass Box 4 for Bosch G4-Set A tuning set specifically for Trek e-bikes with Bosch mid-drive motors and a G4 speed sensor integrated into the dropout (see below for the matching sensor). The set includes the Badass Box 4 and all necessary for assembly...

€164,00€149,00
€164,00€149,00
sIMPLEk for Bosch
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-50%
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PRODUCT TYPE: Bosch Gen1, Bosch Gen2, Bosch Gen3, Bosch Gen4

BRAND: sIMPLEk

sIMPLEk for Bosch The sIMPLEk This tuning tool completely removes the factory-integrated speed limit on your Bosch e-bike, allowing you to ride much faster than before with full motor support. With this tuning tool, the 25 km/h speed limit on your Bosch...

€139,00€69,90
€139,00€69,90
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