PearTune MSO 3.0 is a chiptuning set for e-bikes.
It can remove the speed limiter from your e-bike, so the bike will not stop assisting at higher speeds.
The function can be turned on or off at any time during a ride.

VERY easy installation: All connectors are original as in the Shimano motor as only one in the market!!

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All display readings and control are correct to 23km/h and then are the values halved.

The speed limit is shifted to 50km/h.

The only difference is that you can go the speed you want with your bike. 50km/h with assist? Just plug & enjoy!



  • Activated and deactivated with short pressing of the "light" button in the menu of your display.
  • Original connectors, miniature waterproof enclosure. Can be deinstalled without any signs.
  • Microcontroller-based electronics. Automatic adjustment of all the required parametrs.
  • Original Shimano diagnostics (highest level) did not find any signs of the device after removal.
  • Works seamlessly with Shimano Steps E8000, E6010, E6100, E7000, E5000.
  • We offer similar device for all Bosch motors, Yamaha Syncdrive, Yamaha Sport, GIANT and BROSE motors.
  • Designed and manufactured in the Czech Republic.
  • More than 20000 units sold worldwide, including UK and US with MPH reading.
  • All devices fully tested on real e-bike prior to shipping.
  • Comes with manual and installation instructions.
  • CE and RoHS compliant.
  • It is the user's responsibility to use this device in compliance with local law.
  • We can issue full refund in case of any problems with compatibility.