It's believed to be the biggest one yet.

By mid-afternoon yesterday (Fri), more than 140,000 people were jammed into the tiny Lake Erie resort community of Port Dover for the latest Friday the 13th "Bikerfest", the last one for this year.  And more were expected before the day was over.

This is believed to be the largest single day biker event in North America.

An average “13th” will generate some $2-million in revenue, but with yesterdays weather, it was anything but average.

For the size of the gathering, police say it was run of the mill. a couple cases of heat stroke, a few alcohol-related arrests, and an incident where a motorcyclist struck a police cruiser parked at a roadblock.

Participants will now have to chill, because the next Friday the 13th doesn't occur until Sept. 2013.