Long-distance motorcycle riding

Rallies take on a multitude of formats, differing in duration (anywhere from 8 hours to 11 days), style, types of roads ridden and so forth.

This event takes place over eleven days, usually in late August, on odd numbered years, and is run by the Iron Butt Association.

Over the past decade or so, as distance riding has gained in popularity, the event has become so crowded that the IBA has imposed a limit of 125 riders.

The basic concept is a lap around the lower 48 United States, with possible diversions into Canada and Alaska.

There are interim checkpoints, at which the rider must appear within a brief time window or forfeit any bonus points acquired on that leg.