To allow 2" or 2-1/16" gauge to fit onto the factory gauge mounts on 2014-newer HD touring bikes. Allows you to re-use factory gauge bezel. Some modifications to factory gauge mount bucket may be necessary depending on gauge used. Priced each. Can be used on either the left side (normally a VOLT gauge) or the right side (normally a FUEL gauge). Could also be used for some tweeters or horn speakers
