Tuning Chip for E-bikes with Bosch Smart System, Gen4 Motors, SpeedBox

Quick Facts — SB11_B_1pcs_BOX Tuning chip

• Model: SB11_B_1pcs_BOX
• EAN: 8594206940298
• Type: Tuning chip for Bosch Smart System
• Compatible motors: Bosch Smart System including SX motors
• Activation: WALK function or - + - +
• Recommended max limit: 35 km/h
• Adjustable ceiling: up to 99 km/h

SpeedBox 1.1 for Bosch Smart System is a tuning chip that lifts the standard speed limit of 25 km/h on e-bikes with a Bosch Gen4 motor and Smart System, SX motors included.

The chip connects with original connectors. The wheel circumference is set after the first installation, and the tuning is switched on and off with the WALK function, or with the - + - + button sequence on bikes without an active WALK function. The display confirms the state with 3.5 km/h when tuning is active and 2.5 km/h when it is off.

E-bikes fitted with the tuning chip are not permitted on public roads, cycle paths or public places and are intended for private land.

Why e-bike owners choose a tuning chip for Bosch Smart System

The chip replaces the 25 km/h limit with an adjustable limit up to 99 km/h, where 35 km/h is the recommended level to avoid error codes. It suits all Bosch Smart System displays and all Bosch Smart System motors including SX.

The functions that matter in practice are the following:

• Real speed is not shown on the display.
• Correct travelled distance is shown after the countdown process.
• The speed limit can be set by the user.
• The chip is not compatible with Bosch Rim Magnet or ABS systems.

How a tuning chip for Bosch Smart System is used on private land

The tuning is activated and deactivated only before the ride, with the e-bike standing still. The sequence is as follows:

• Activation: briefly press the WALK function (hold the "-" button), the display shows 3.5 km/h.
• Deactivation: briefly press the WALK function again, the display shows 2.5 km/h and the limit returns to 25 km/h.
• Without an active WALK function: press - + - + to activate the tuning.
• Maximum limit: switch modes from TURBO three levels down and up (eMTB - TOUR+ - ECO - TOUR+ - eMTB - TURBO), the value is saved after 15 seconds of inactivity.
• After the ride: the e-bike is left on until 0.0 km/h is displayed, and the display is not removed before the countdown completes.

The tuning deactivates automatically when the e-bike is switched off and must be activated again at start-up. On a new e-bike, at least 10 km are ridden before activation. The connectors are joined in the direction of the lock and are not rotated during assembly.

Technical Specifications

A fit for: E-bike mechanics working on Bosch Smart System. Owners of e-bikes with a Bosch Gen4 motor. Owners of e-bikes with an SX motor. Test riders on private land.

Typical settings: E-bike workshops. Bicycle retail. Facilities on private land.

Frequently Asked Questions (FAQ)

Does the tuning chip for Bosch Smart System work with software version 11.13.0?

No, not for units ordered before 05/2024. Bosch Smart System software version 11.13.0 causes incompatibility with such tuning chips.

Do firmware updates affect the tuning chip for Bosch Smart System?

Yes. Firmware updates of the e-bike increase the risk that the tuning is detected. It is therefore recommended not to update the firmware and to disable automatic updates in the eBike Flow app.

What distinguishes the tuning chip for Bosch Smart System from other tuning chips for e-bikes?

The tuning chip raises the limit from 25 km/h to an adjustable value up to 99 km/h, with 35 km/h as the recommended level. It connects with original connectors, is switched on and off with the WALK function or - + - + and deactivates automatically when the e-bike is switched off. Real speed is not shown on the display, and correct travelled distance is shown after the countdown.