PearTune MSO 4.0 for Bosch SMART SYSTEM E-BIKE E-MTB TUNING KIT

Peartune tuning kit removes the 16mph (25km/h) speed limit, allowing the motor to help you at higher speeds. With the speed limit removed, 28-37mph (~45-60km/h) can be expected, depending on the bicycle and gearing.

After exceeding 16mph (25km/h) your actual speed is indicated on the last two digits of the display. This works with km/h only.

Example:
- 22.3 corresponds to a speed of 23 km/h
- 23.1 corresponds to a speed of 31 km/h

The tuning kit can be activated directly on your bike’s display. After pressing the 'WALK' or '+ - + -' buttons, from now on you will be able to ride at a speed of 25 mph (40 km/h) and even up to 31 mph (50 km/h)!

To deactivate the tuning kit, press the 'WALK' or '+ - + -' buttons again. Your e-bike will then work the same as before installation of the chip.

Service menu video:

The PearTune MSO 4.0 can be activated or deactivated anytime during the ride by short-pressing the LIGHT/WALK button or [+ -] buttons. Original function of these buttons remains unchanged. After activating PearTune - you will be able to ride at a speed of 25 mph (40 km/h), 31 mph (50 km/h) and even more than 37 mph (60 km/h)!

Brose:
Activation: ONE short press of LIGHT button or TWO short press of LIGHT button and/or [+ - + -] buttons, or [- + - +], or [+ + - -]or [- - + +] / (↑ ↓↑ ↓) buttons
Indication: displayed number 9.9/2.5 for few seconds after activation/deactivation (or equivalent in miles)

Specialized:
Activation: ONE short press of WALK button and/or [+ - + -] buttons, or [- + - +], or [+ + - -]or [- - + +] / (↑ ↓↑ ↓) buttons
Indication: displayed number 9.9/4.0 for few seconds after activation/deactivation (or equivalent in miles)

Bosch:
Activation: ONE short press of WALK button and/or [+ - + -] buttons, or [- + - +], or [+ + - -]or [- - + +] / (↑ ↓↑ ↓) buttons
Indication: displayed number 9.9/2.5 for few seconds after activation/deactivation (or equivalent in miles)

Bosch Smart System:
Activation: ONE short press of WALK button and/or [+ - + -] buttons, or [- + - +], or [+ + - -]or [- - + +]
Indication: displayed number around 19.0/12.0 for few seconds after activation/deactivation (or equivalent in miles)

Giant:
Activation: ONE short press of WALK button and/or [+ - + -] buttons, or [- + - +], or [+ + - -]or [- - + +] / (↑ ↓↑ ↓) buttons
Indication: displayed number 9.9/2.5 for few seconds after activation/deactivation (or equivalent in miles)

Yamaha PW-X3 | PW-S2:
Activation: TWO short press of LIGHT button
Indication: displayed number 9.9/2.5 for few seconds after activation/deactivation (or equivalent in miles) InterfaceX no indication, only if any App for Yamaha e-bikes available

TQ Flyon:
Activation: ONE short press of LIGHTS button and/or [+ - + -] buttons, or [- + - +], or [+ + - -]or [- - + +] / (↑ ↓↑ ↓) buttons
Indication: displayed number 9.9/2.5 for few seconds after activation/deactivation (or equivalent in miles)

With the new PearTune 4.0 module, you can set whether the tuning should automatically be ON or OFF when the e-bike is switched on. You can set Your preferable speed range, make the chip invisible or make Your own activation code. Only + and - buttons on the eBike remote controls are used to change preferable settings, but the speed readings must be set to km/h. Download the chip service menu and have full control of the tuning kit.

Here are few guidelines how to use chip service menu:

In order to change preferable speed limit - refer to chip service menu section A • max. speed (10x)

1.Select the maximum assistance level on the display and wait at least 5 seconds
2.Begin with two presses of [- -] buttons and continue changing assistance levels by pressing + and - until 10 times pressed in total: [- - + - + - + - + -]
3.The display shows the current maximum speed setting, which you can change to desired maximum speed by pressing the + and – buttons. After 10 seconds of inactivity, the selected speed is automatically saved and the service menu is closed.

In order to set the tuning kit to be always active - refer to chip service menu section C – starting the chip (x15)

You must change the setting from 13 (default) to 11 (Still-ON)
meaning: the chip is ACTIVE when the bike is turned on - the chip is activated automatically when the bike is turned on (then the chip can no longer be deactivated by pressing any button)

1. Select the maximum assistance level on the display and wait at least 5 seconds
2. Begin with two presses of [- -] buttons and continue changing assistance levels by pressing + and - until 15 times pressed in total: [- - + - + - + - + - + - + - +]. If entering the menu is successful, the displayed value of 15 drops to 13 within 3s = (default setting).
3. Press [- -] until the value of 11 (Still-ON) is displayed. Do not change it to any other value for 10s so the setting can be saved and the service menu is closed.

The tuning chip for e-bikes with the newest Bosch Gen4 motor with Smart System.
Compatible with:
- displays KIOX 300
- motors Bosch Gen4 + Smart System

Not compatible with e-bikes that have a magnet attached to a valve (Bosch Rim Magnet).

Not compatible with with e-bikes with Bosch ABS system

If your e-bike has Bosch Gen4, Gen3 or Gen2 without Smart System, we recommend Peartune 3.0 for Bosch (incl. Gen4) or Peartune 4.0 for Bosch (incl. Gen4)

When connecting Tuning Kit to an e-bike you will find connectors colored to make installation very simple. We have prepared detailed instructions and videos to make installation easy for you. Disassembly of our tuning kit is just as easy. If you have any troubles with installation or disassembly, do not hesitate to contact us.

If you are planning to install Peartune on a brand-new bike, make sure you ride it for at least 0.6 miles (1 km) before the tuning kit is activated.

Installation Guide:

Please note that the operation of this type of modified electric bikes on public roads may be against the law in some countries. The manufacturer takes no responsibility for damages resulting from the use of Peartune products. Electric bikes equipped with Peartune products are not allowed to be used on public roads, cycling paths and public places. Electric bikes equipped with Peartune products can be used exclusively on private property and entirely at one’s own risk. The use of Peartune products may void the warranty of your ebike.

We strongly recommend using other safety features and protective gear to prevent injuries in higher speeds.

Peartune products are thoroughly tested and we stand by their quality - Peartune provides 2 years warranty to all their products.

In case of updating the software of your e-bike, uninstall the tuning kit from the e-bike first, update the software and reinstall tuning kit back. Product's warranty does not cover eBike software updates. We recommend to contact us before updating the software.