First find a club that is close that has womens classes that you can ride in. www.wheretomx.com or www.dirtwerkz.com. Go along for a race day and watch. Ask some of the other girls what bikes they have so you can get a bike much like the others are racing. The size of the bike also depends upon how big a 15 year old girl you are.
The price of the bike also depends upon what bike you get and where you live as bike prices vary greatly from country to country. You need all the appropriate bike gear chest guard, kidney belt, gloves, goggles, shin guards, elbow guards, good helmet, boots, pants, jersey, and if you can afford it a leatt brace is a good idea. Go onto a few websites and look up prices as again things vary from where you are in the world as to cost.
You will also need to be able to get the bike to and from race meets so will need a truck or trailer. there are many other things needed as well that you may not think of like tie downs for the bike and all the things that are needed to race like spare levers and air filters, spark plugs in case you foul one. so you need to get a spares kit together.
Make sure you talk to the race secretary of the club you join to find out what things you need to do to be able to race as they are different depending upon where in the world you are. Also see if they have a club coach you could get some lessons from.
Don't attempt to race till you have attended quite a few practice days.
The country I am in to get a bike decent enough to race all the gear that is needed you would be looking at, at least no less than $6000 or above depending upon whether you buy new or not.
· 1 decade ago