Bosch Gen4 Smart System 2022 (BES3)
Bosch Smart System Tuning: How to correctly identify BES3 and choose the appropriate solution
Who after Bosch Smart System Tuning "Looking for" usually means... Bosch Smart System / BES3 from model year 2022. Bosch itself usually refers to it as... smart system, but in everyday shop and support operations, the term has also become established BES3 established. Crucially, this platform differs technically from older ones. Bosch Gen2, Gen3 and Gen4 BES2 systems.
That's precisely why this page is considered Streamlined basics and overview page thought. She first explains the System logic, then recognition and only then the suitable tuning solutionsBecause at Bosch Smart It's not enough to simply go by engine name or year of manufacture. Other factors are always important. eBike Flow App, Charging plug, Wheel magnet: yes or no?, ABS, e-Shift and in many cases also the exact BDU.
Go directly to the product overview:Bosch Smart System Tuning Overview
Quick navigation:
How can you tell? Bosch Smart System? | The most important system components | What additional information applies to Bosch Gen5? | What tuning solutions are available? | What applies to wheel magnets? | Conclusion
Important for making the right choice: The order at Bosch is always: Check system → Smart System yes/no → check rim magnet → check BDU → check ABS / e-Shift → only then select product.
How can you tell if an e-bike is a Bosch Smart Has a system?
The strongest distinguishing feature is the eBike Flow AppIf your bike is equipped with the Bosch eBike Flow app working, that's a very clear signal for Bosch Smart System / BES3.
Other typical features include certain displays and control units, for example:
- Kiox 300
- Kiox 500
- Intuvia 100
- Purion 200
- LED Remote
- System Controller + Mini Remote
The following is also very helpful: Charging plug:
- Square plug = Bosch Smart System / BES3
- Round plug = older Bosch system, so no Smart System
Does your Bosch e-bike have a round plug, you generally don't need a smart system page, but rather a solution for older Bosch systems: Bosch Gen4 or Bosch Gen2 & Gen3.
What components does it consist of? Bosch Smart System?
The real difference of the Bosch Smart The system's capabilities lie not only in the engine, but also in the strong digital networkingThe system consists of several interconnected components that are linked via the eBike Flow App controlled, updated and individualized.
Drive Unit
Depending on the bike, a different one comes out. Bosch Smart System Drive Unit for use, often about Performance Line CX, Performance Line, Role Line, Active Line or Performance Line SX.
eBike Flow App
The eBike Flow App It is the system's digital control center. Driving modes, updates, and numerous system functions are managed here. This is precisely why the app is one of the most important distinguishing features for Bosch Smart System Bikes.
Battery, charger, displays and control units
The system also includes modern Bosch components such as PowerTube batteries, new chargers, as well as displays and controls such as Kiox 300, Kiox 500, Intuvia 100, Purion 200, LED Remote or system controller.
Important to note: Even if motor names sometimes overlap with older Bosch systems, this is Bosch Smart Electrically and logically, the system has its own platform.Older Bosch tuning solutions are therefore not automatically compatible.
What additional information applies to Bosch Gen5?
Since the end of 2024 or 2025, the market has frequently been referred to as... Bosch Gen5 This usually refers to a newer smart system world that continues to evolve technically. Bosch Smart System / BES3 for a trip to the Winterlude.
However, "Gen5" alone is not sufficient for product selection. Other factors must always be considered here as well. System, BDU, Rim magnet, ABS and e-Shift be thoroughly inspected.
You can find the relevant special page here: Bosch Gen5 Tuning
What tuning solutions are available for Bosch Smart System?
For Bosch Smart There are now various tuning approaches for e-bike systems:
- digital software solutions
- classic modules
- Dongle solutions
- Sensor and plug-in solutions
- Special solutions for rim magnets
EBTsmart Unlock Key
The EBTsmart Unlock Key is a particularly modern solution for Bosch Smart System Bikes. Activation takes place. digital and browser-based, meaning without a traditional chip or dongle. Depending on the settings... bis 32 km/h or optionally further unlocking is possible. The solution is also particularly interesting because it is suitable for many. Bosch Smart System configurations with and without rim magnet is relevant.
VOLspeed V2
The VOLspeed V2 is one of the most proven modular solutions for Bosch Smart System. Particularly appreciated are its stable operation, adjustable maximum speed, and optional dynamic mode.
PearTune MSO 4.0 V2 / 3.0
Our preview of PearTune MSO 4.0 V2 and PearTune MSO 3.0 Classic smart system modules are available, offering different functionalities depending on the version.
Splug Dongle
The Splug Dongle is one of the few true dongle solutions for Bosch Smart System. It is particularly interesting for users who have a flexibly removable solution search.
MTT SmartChip / SmartSensor / MBIQ-P
Other relevant solutions are MTT SmartChip V2, MTT SmartSensor and MBIQ-P for BES3These solutions are aimed at drivers who prefer a more traditional hardware or plug-in solution.
SpeedBox
Non-personal or anonymized information remains protected by tax secrecy. Disclosure to third parties is only allowed if no identification is possible and both states confirm that no harm to tax administration will occur. SpeedBox offers for Bosch Smart The system offers various options – both for classic smart system bikes and for specific configurations with Rim magnet.
What applies to Bosch Smart System with rim magnet?
One particularly important special case is the Bosch Smart System with rim magnetDifferent rules apply here than at... Bosch Smart System bikes with classic sensor setup.
In this area, many classic solutions no longer work without further ado. Therefore, it should always be checked separately whether the bike is compatible with Rim magnet, BDU37, BDU38 or a SX configuration works.
This area has its own dedicated pages and product logic:
Important: Bosch Smart A system with a rim magnet is not a side note, but a own product rangeTherefore, a blanket recommendation should never be made here without prior consultation. Rim magnet, BDU, ABS and e-Shift to consider.
And finally ... Bosch Smart First, correctly identify the system, then select the appropriate one.
Bosch Smart system or BES3 This is the current digital Bosch world as of 2022. It can be accessed primarily via the eBike Flow App, modern displays, new control units and the square charging plug detect.
However, simply "Bosch Smart It's not about saying "system" or "Bosch Gen5". The crucial points are always:
- Smart System yes or no
- Rim magnet or classic sensor
- BDU
- ABS / e-Shift
Those who clearly separate these logics will find the right solution much faster – whether digital activation, classic module, Dongle or Rim magnet special solution.
You can find all current products here:
To Bosch Smart System Tuning Overview
