Yokomo’s new RPX speed controller is finally here. The RPX3 is the new flagship model that surpasses the performance of the previous RPX speed controller. While maintaining the overwhelming power that reaches maximum RPM instantly, the throttle feel has been optimised by smoothing out the power delivery, adding a controllable characteristic that prevents breakdowns even when power is increased. An auto mode that changes boost in accordance with throttle is also included, enabling high-boost driving with a linear curve. The boost value can now be increased to a maximum of 75, whereas in the past the upper limit was 60, and instantaneous power has reached a level far beyond what was previously available. A dedicated programmer is required to change the RPX3 program and is now also available. They also plan to distribute firmware to update the old programmer (BL-R26P), but you will need to revert to the old firmware if you wish to change the program of the old ESC after the update.