This kit includes EVERYTHING you need to convert your bike to wireless shifting. We took all the guess work out of it. In this kit we include EVERY adapter for whatever derailleur you have. Including both aluminum and magnetic mounts, so you can try them both and decide which is better for you. Road bike kit includes a pair of BIT buttons for mounting in hood or bar tape. If you have a flat bar, you should order the 1X MTB Kit.