The newly designed Velo 7 is CatEye’s entry level 7 function computer. The larger screen is even easier to read and set up is made simple with pre-programmed tire sizesAlong with current, average, and max speed measurement, track your trip distance, elapsed time, and odometerCurrent speedElapsed timeTrip distanceAverage speedMaximum speedTotal distanceClockPace arrowAuto power savingAuto start/stopTire size: 16 invh - 700cBattery: Lithium battery CR2032X1Battery life: approx 3 years (1hr use per day, may vary depending on environment.).