it would be 21 to 30 inch best idea
The safety bike was different in that both wheels were the same size.
A very small bike
A bike for a 4 year old normally requires stabilizers, unless at least he or she is able to ride solo. A typical bike that suits this purpose is one with a mountain bike (MTB) frame.
Yeah if they have the right size dirt bike and gear
not recommended, but its is legal on private property.
it depends on the year, model, make and whatever size wheels are available.
What year and size wheels are interchangeable with a 2010 Honda accord.
If he needs a regular bike, I would get him a full size 26 inch bike. He is at the point where he is about to start his adolescent growth spurt.
a 120cc dirt bike is suitable for a 17 year old
For a 13 year old it depends on your size and your experience with dirt bikes, but an 85 is usually the best size bike and fastest for a 13 year old. Unless you are really tall which you would need a 125.
between 150cc and 250cc
It depends on the size of the 11-year old!