Races in The Lost and Damned

There are races throughout the game, they are also online. You start with whatever bike you pick or bring and you have to do a certain circuit, but theres a twist, whilst racing you have a bat and you press x to hit left of you or B to hit right of you, the longer you hold the button the more powerful it it. If you just touch it it will take several hits to take someone off but if you hold it they will come off first time. Also they hit back taking you off cource. There is also an achievement for knocking off 69 bikers called "Get Good Wood" 50G.