The A15 comes with 23 built-in color options, selectable with the press of a button. Ultra-bright LEDs light both sides of your bicycle wheel, spokes, tires and the road around you to help keep you visible from all angles!

• The A15 comes with 23 built-in color options, selectable with the press of a button. Ultra-bright LEDs light both sides of your bicycle wheel, spokes, tires and the road around you to help keep you visible from all angles!
• Colors can change with speed