SpeedBox 1.4 B.Tuning for Bosch SX Smart System with Rim Magnet (BDU3144 and BDU3145)

Tuning chip for e-bikes with Bosch Performance Line SX motor and Rim Magnet
Unlock the 25 km/h limit and use the full power of your e-bike!

Bluetooth • SpeedBox Connect

The product is fully compatible with motors
Performance Line SX 4th generation:
Motor models BDU3144
Motor models BDU3145
• Motor mounting: 2 diagonal screws

Compatible with Software 21.12.0!

Recommendations for trouble-free SpeedBox operation

• Keep the e-bike turned on after each ride until the “Countdown” (distance recalculation) is completed.
• During short stops, keep one foot on the pedal to prevent the countdown from starting.
• During longer stops, allow at least part of the countdown process to complete.
• Do not disconnect the display before the countdown is finished.
• Do not perform software updates – disable automatic updates.
• Always activate/deactivate tuning before or after the ride, not during.
• Do not increase the set maximum speed of 35 km/h.

Instalation

Warning
Please note that operating such modified pedelecs on the street may be contrary to the laws in force in some countries. The manufacturer assumes no responsibility for damage caused by the use of SpeedBox products. E-bikes equipped with SpeedBox products must not be used on roads, bike paths and public areas. E-bikes equipped with SpeedBox products may only be used at your own responsibility and property. Using SpeedBox products can void your e-bike guarantee.

We recommend using additional safety features and protection products to avoid injuries at higher speeds.