a 150r small wheel works great for me
10- 15
125
yes
probaly like 15 years old or more you just have to the right size to fit it
2 stroke, 10- 15 years old is a good year spand. 4 stroke, 4- 8.
No, it is not okay for a 15 year old to date a 36 year old because the 15 year old is still a minor.
As a starter bike yes, but an experienced rider will want a 125 or 250.
No. The 15 year old is a minor and the 21 year old is an adult. It is illegal.
If the parents give permission the 15 year old can live anywhere they allow.
The following is from one of my local motocross tracks, most local tracks should have something similar: 0-85cc 7-15 Beginner 0-85cc 14-15 years 150cc and smaller 4 Stroke, 15 years old & younger
 and any of the novice or intermediate classes depending on their ability
Made - 2002 Motocross Kaitlin 10-15 was released on: USA: 28 May 2009
A 16 year old can with parental permission. A 15 year old cannot.