Dirt/Street BMX - Be on the street one minute, in the SK8 part the next then shredding the trails the next. Great all around bikes that you can tweek to your needs.
Freestyle/Park BMX - Models with front and rear U-brakes, 4 axle pegs and a SST detangler all included. Great starter bike with many features.
BMX Racing - Fast and light is the name of the game. Can be used on the race track or the bike you rip around the neighbourhood on.