Dave, Stuckthrottle is right, the bikes run on the old part of the LDC course. The start finish line is where pit C use to be about 10-12 miles from Laughlin up HWY 163 on your Left hand side. Actually they usually have a very good turnout, a couple hundred bikes if I remember correctly.
This is Casey's best motorcycle race of the year and I would expect a record turnout. I'm racing 250 pro with Matt Berault, Chad Ragland is racing with his cousin and Larry Ragland and his brother Dan are teaming up. I tell everyone if there is one motorcycle race a year that you do it has to be the Laughlin race. Also Roeseler will be there. Lots of truck racers racing bikes.