E-Bike Tuning PearTune MSO 4.0 BOSCH SMART + RIM magnet SX top

PearTune MSO Tuning for Bosch SMART + RIM Magnet e-bikes is a chip tuning device used to remove the 25 km/h speed limit on e-bikes. The device is fully compatible with the BOSCH SMART Performance Line SX motor and all displays available on the market for this motor, such as the Kiox 300, Kiox 500, Purion 200, Intuvia 100, Remote Control, etc.

Used in combination with the RIM magnet (a speed sensor magnet mounted on the valve).

Also fully compatible with the latest Bosch update 5/2026 | Version 19.54
Also fully compatible with the Bosch Connect Module
Fully compatible with Bosch SMART motors + RIM magnet

NOT COMPATIBLE WITH BOSCH SMART MOTORS featuring a classic wired speed sensor and a magnet in the wheel spokes or on the brake rotor

The MSO 4.0 version is one of the advanced variants and offers the option of advanced settings via the chip’s service menu. Activation and deactivation can be performed directly using the e-bike’s controls, such as the WALK button or a combination of buttons.

Key features:

This tuning kit is intended for use on private property and in off-road environments. Once the speed limit is removed, the e-bike may exceed the parameters of a standard e-bike intended for use on public roads.