50 mph
40mph
around 70-75 kmp
Up to 40mph depending on the riders weight.
52
klx110 no i think u should get a coolster 110 they will last forever not cheapy Chinese crap klx110 is a nice bike but coolsters are made to last/go fastand pass in races or just to go have fun i am 12 and know farly alout about what bike to get for a eleven yr old i have a 125cc coolster but 125cc has clutch bot 110cc does not it is semi auto so justr shift no clutch im 5'4 and 132 pounds a 110 coolster can get me about 45 mph it is a great bike and a little cheaper so u get it faster :)
real fast
55mph
125
45
about 70-75
a 125cc pit / stomp bike can reach limits of 70mph :)