Do these fit a 99 Harley soft tail custom
By D
Answer QuestionThese are suitable for pretty much any 12V application, including your Softail. Some minor electrical work is required to complete the installation. Other than that, you just need to find a flat surface that measures at least 1-1/2" x 6" x 1" to drill and mount these signals. They're held in place by the two mounting bosses you see in the photo.