Device designed for e-bike in order to remove the speed locker of the engine set at 25 Km / h and consequently to maintain the assistance up to 50 Km /h,  fully exploiting  the performance that the engine can provide. Installation is simple as it takes place in a few minutes, without opening the engine, without the help of  power supply, nor the unsealing of the original part; additionally it  is totally  invisible as it is housed inside the motor casing carter. Equipped with connectors.

The unlocking  of the engine at 25 km/h is activated by pressing a button of the computer on board. The speedometer will always  show the real speed.
To turn the unlock on and off, the walk button is used.
Eplus is equipped with an automatic wheel circumference setting system. The wheel calibration is automatic, with the possibility of manual modification.