- Installation Video: How To Install ProBEAM Solid Amber 1157 Bullet LED Turn Signals for Harley Davidson Motorcycles September 15, 2020 13:37 Updated How To Install ProBEAM Solid Amber 1157 Bullet LED Turn Signals for Harley Davidson Motorcycles Related articles - Installation Video: How To Install ProBEAM® 1157 Bullet LED Turn Signals for Harley-Davidson® Motorcycles - Installation Video: How To Install ProBEAM Rear Red Ring 1157 LED Turn Signals by Custom Dynamics -Product Comparison: ProBEAM® Dynamic Ringz™ vs. Genesis® 4 Halo-Free LED Front Turn Signals - Installation Video: How To Install ProBEAM Amber/White LED Front Turn Signals for Indian Motorcycles - Installation Video: NEW Custom Dynamics PROBEAM Front Bullet Bezel LED Turn Signals Install And Comparison