Also, in case your conscience won't allow you to be a rebel like me (or your bike does not allow for it, but I know in Texas there are 2 types of tags. One is the hard plastic ez-pass and then they have another one that just works as a sticker. you might check with your local toll authority or various toll vendors and see if they have one of those. At least that place you could find somewhere to stick it (like a piece of plastic or a lid on touring pack/saddle bad.. etc. I'm not 100 % sure if it would work this way but you may even be able to keep it in your wallet or in a jacket pocket but I am not sure how strong the RFID signal is on those things.