How can I tell if i'm fast enough to have good results in motocross

go around the track all day. have someone time you with every run. and if u keep beating it. might be good........ but do not mind me.. i'm just a fan of mx

Ask at the track what is the best lap times for ur specific bike as most tracks or people running them have a good idea of what is a good lap time & a bad. One track my son rides at u have to prove yourself capable of a specific laptime before u can ride the more advanced track. Get someone to time u next time u ride, but u should be able to gage how fast u r by riding with other riders. Do not pull off if someone faster passes u as that is not the way to improve. So many people wont ride against faster riders when training as they think they will look bad, but the only way to get better is wait till that rider comes past & try to stick with them as long as u can. See how they do it & try & match them.

That is easy, just go race and see how you do. It is not that expensive and if you come in dead last who cares. You will never know unless you try. One other option is to just find someone that does well in your class and pace them during open practice.

You can always go down to your local track and see just how fast some of the guys or girls ride in what ever class your thing of racing..You will be able to judge pretty quick..