Buy now the X-Fire 5-LED taillight with laser lane marker and save up to 29%. It will keep the distance in between cars and bicycles and you will be much safer to enjoy your night ride. This is designed to project a bike path onto roadways. The X-Fire 5-LED taillight with laser lane marker project two lines onto the asphalt, extending back from either side of the bike. While those lines don’t do anything to physically protect the cyclist, they do provide motorists with an attention-getting visual guide as to how much distance they should be keeping.