like what u just about the bike thing their easy as hell to work all u have to do as rapp that little magnet to the inside of your rims and other reciving part to somewhere on your truck but place it near the inside of the rim then just calibrate it for the rim size mount the panel on your truck and drive, then get your truck and read the pannel and it will tell u top speed. i might work it might not but im gunna tare my dads off his bike and tell u if it works