How do they keep the salt so smooth?
It's naturally a very flat stretch of land. The BLM has been working with the industrial area south of the flats to pump brine water back onto the flats each year. That leaves a new deposit of salt. Here's a site with more info:
http://www.saltflats.com/save%20the%20salt.htmlI always thought salt was soft and would be destroyed with people driving on it.
It's hard on top but soft under the crust. Out where you run the bike it feels almost like concrete. You will see along the access road where people have driven out and left deep marks where it's not so firm.
When do the classic bikes run at Bonneville?
BUB Speed Trials is dedicated to motorcycles and runs once per year, usually after speed week. In 2009 it will be from Aug. 30 to Sept. 3rd. here:
http://www.speedtrialsbybub.comThey are kind of a "run what ya brung" event. But if you set a record with them it's official with AMA and FIM.
I believe you can run motorcycles with the SCTA (Southern California Timing Association) events, but I've heard that they can be so packed with cars that you can only get a few passes in during the whole week.