MTT SmartChip V2: Chip for Bosch BES3

MTT SmartChip V2: Tuning Chip for Bosch Smart System (BES3)

The MTT SmartChip V2 is a practical tuning chip for removing the 25 km/h limit on e-bikes with Bosch Smart System (BES3). The MTT SmartChip is a convenient module solution that is very compact and easy to install. This module is tiny and, unlike some other modules, fits into even the smallest engine compartment. Once connected, the MTT SmartChip allows you to ride with full motor support, even at speeds well above 25 km/h.

Attention: The new version has significantly higher quality connectors as can be seen in the product photos. They are therefore probably the best connectors for Bosch Smart System Tuning ever.

The MTT SmartChip does not need its own battery, the power is supplied by the bike. When tuning is activated, the display will no longer show real values from a speed of 25 km/h.

The MTT solutions for Bosch Smart System motors are the best products for this motor to date. They generate by far the fewest error messages with the new Bosch motors.

The MTT SmartChip "Switch" is a chip with an ingenious additional function: If you cut a small cable, a secret routine for starting the tuning is activated; if you reconnect the cable, all the original setting options are possible again. This function is actually intended for e-bikes without a display, but it can be used on any e-bike with the Bosch Smart System with spoke magnet.

Three different operating modes

You can switch the MTT SmartChip on and off as required. There are three different operating modes to choose from. The desired operating mode is set when the E-Bike is started up by making certain wheel movements that move the spoke magnet along the sensor.

-Tuning permanently activated (factory setting): Speed limit is removed, the real speed is only displayed up to 25 km/h.

-Tuning permanently deactivated: The e-bike functions as in its original state (motor support up to 25 km/h, correct speed display).

-Tuning according to switch-on condition: Here you can spontaneously specify when switching on the bike whether the tuning should be activated or not. To activate the tuning, the magnet must be in front of the sensor for at least 4 seconds when the e-bike is switched on (sensor active), otherwise the tuning remains deactivated.

You even have the option of individually setting the maximum supported speed using certain wheel movements.

Note: When delivered, the MTT is always in "Tuning permanently activated" mode, with maximum speed assistance.

How it works

After installation, the MTT (with the tuning active) will analyze and process the current speed profile and pass on manipulated values. This outwits and removes the preset 25 km/h speed limit so that you can ride much faster with full motor support.

Please note:

As the MTT SmartChip locks out speeds above 25 km/h for the motor firmware when tuning is active, the displayed speed always remains ≤ 25 km/h. This means that the real speed is only displayed up to 25 km/h.

Therefore, the system's total mileage display will no longer correspond to the real distance traveled.

Installation

For installation, the MTT SmartChip V2 must be installed in the engine compartment.

To gain access to the plug connections, the plastic cover of the engine (and sometimes also a crank) must be removed briefly.

MTT SmartChip V2 for Bosch Smart System - Compatibility

This tuning module is compatible with e-bikes with the "Bosch Smart System" drive system, sometimes also referred to as "Bosch Gen4 2022", "Bosch Gen5" or "BES3" ("Bosch development stage 3"). This drive system largely uses the already familiar mid-mounted motors, but the motor manufacturer Bosch has introduced a new generation of plugs here.

Important:

-Not compatible with e-bikes that have a magnet on the valve (rim magnet). You need the RimBoost for this.

-Not compatible with Bosch e-bikes with ABS system.

Attention: Please do not carry out any Bosch updates after installing and using a tuning! Compatibility may then no longer be guaranteed!

The MTT SmartChip V2 is tested and used on e-bikes from CUBE, Haibike, Kalkhoff, KTM, Winora, Focus and many others.

Tip: Bosch Smart System e-bikes (BES3) can be easily recognised by the charging cable plug, among other things.

SQUARE plug = Bosch Smart System BES3 (Gen4) + Bosch Gen5:

ROUND plug = Bosch Gen2, Gen3 & Gen4:

If your Bosch e-bike charging cable has a square plug (as shown above), you have selected the correct tuning module (provided the bike does not have ABS or a rim magnet). If your Bosch e-bike does not have either connector, you either do NOT have a Bosch e-bike or an e-bike with the old Gen1 drive (Classic Line).

Scope of delivery

-1 MTT SmartChip V2

Made in Germany.