If you're going to do off-road riding, then the KDX 200 will do just fine. If you are going to ride moto-cross, you might consider a moto-cross bike. Although a KDX will jump, it doesn't have the suspension of a motocrosser. Talk to your Dad. With 10-yrs riding experience, he should be able to help you out more than you may think. Either way, if you're just starting out, make sure that you do not try to ride over your head and always wear your safety equipment. Take your time and learn how to ride. Ask your dad for riding advice, read riding and maintenance tips in magazines, ask a freind. Some of these magazines can be found on-line. Actually, slower is sometimes faster. Practicing a particular skill at slower speeds and then increasing your speed as your skill level progresses will make you a faster rider in the end. Also, dirt bikes are not toys. You can be seriously injured on them. So take your time and learn the sport of off-roading and don't let your freinds talk you into trying something that you may not be ready for. Be patient, and you will eventually be as fast or even faster than your freinds.