Bike tut for bike nut ?

Howdy fellas, i'm looking for a tutorial/information on making and tweaking bike physics ? I'm initially looking for info on a creating/scripting a basic 2D side scroller setup, say for something like a BMX game initial. Power/torque linked to the bike/frame wheeling, stopping and breaking all having a realistic effect on the bike but none of the leaning turning headaches for my first game. I'm modeled my bike in high poly and low hears a sneak peak can't wait to make it come alive with a little help !