Conrod life time ( for competition )
.21 on-road engine 3hrs run time, 60min/5min x 3 x 125cc = 4.5L fuel (if average 21s per lap, about 514 lap)
.12 touring engine 5hrs run time, 60min/5min x 5 x 75cc = 4.5L fuel (if average 23s per lap, about 782 lap)