BMW Front Turn Signals signal the direction you're turning. They're also called BMW front indicator lights or blinkers. Stock front turn signals replace the ones that came on the motorcycle from the factory. Aftermarket ones usually offer some sort of improvement and may be slimmer, brighter, look better, or even re-position the location of the front turn signals. The better options use LED lights, and are plug-and-play. The later means no cutting, splicing, or drilling is required to install them on your BMW.