

Internal black box mechanisms sense the motorcycle’s path and orientation, automatically turning off signals when turns are completed. How does it “know” to turn signal lights off after a turn? The STS “black box,” connected between the handlebar turn switch and the motorcycle wiring harness, activates relays energizing the left or right turn direction signals from the original (albeit modified) handlebar turn signal switch. What if the rider changes his mind about a turn after signaling? Moving the handlebar switch to the same direction again extinguishes the blinking turn signal lights.


The STS is also savvy when navigating “roundabouts,” or traffic circles, automatically canceling turn signals after 15 seconds if no turn is made. This works at virtually any turn angle, including lane changes. And, when the bike is “straight and level” after the turn is completed, the system automatically disables the flashing indicator. The Smart Turn System ( STS) automatically shuts off the turn signal lights when a turn is completed. False signaling could inadvertently lead to accidents. You may have ridden behind “Left Turn Charlies,” motorcyclists who fail to turn their signals off after completing turns.
