Functions: Applicable Tire Size: 700Cx(Tubular-20-38mm),650Cx(20,23mm), 16\"'"\"'"-27\"'"\"'" Feature SPD: Current Speed Data SPD COMPARATOR: Higher Or Lower Than Average Speed ODO: Total Distance DST: Distance Of One Single Trip MAX SPD: Maximum Speed AVS: Average Speed Of One Single Trip TM: Trip Time TTM: Total Trip Time Record RAT: Riding Record Of All Time STOPWATCH TH: Current Outdoor Temperature (C/F) SLEEP MODE: Over 300 Seconds OVER-SPEED REMINDER: SPD Over 20km/H MAINTENANCE ALERT: ODO Over 300 Km/H CARE REMINDER: ODO Over 300 Km FREEZE FRAME MEMORY: DST,TTM,SPD Data Will Be Frozen Except STOPWATCH Mode WIRED REMOTE CONTROL: TRIP UP----Trip Count Up TRIP DN----Trip Count Down TM UP----Time Count Up TM DN----Time Count Down BACKLIGHT: Open Time From 6 Pm To 7 Am Of The Next Day 12/24 Clock Setting