There are two things this should do. Hold air and send print data. Doesn't fit either. It's successfully programmed and sending data regularly so I know it's set up correctly. But it was unreliable, giving out TPMS trouble codes on almost every ride. Also, I have to add air every other day to keep the pressure up. It's too much work to install these sensors to waste time on this matter. I sent it back as defective.