Universal Motorcycle Turn Signals Turn signals are among the most popular accessories in the Louis motorcycle accessories range. Not least because stock turn signals are often rather clunky and unimaginatively designed. At Louis you're certain to find a great alternative. Brighter, smaller, better looking! Louis has them all! Classic bull's eyes for vintage bikes and high-tech LED turn signals, plus fairing, bar-end and mini turn signals in lots of different designs. All the turn signals in the Online Shop are "E" marked and can be used without individual component approval.