The only formal explanation of baiku that I could find was on a personal blog, which described the poem as a six-line poem written in tercets with a syllabic pattern of 5-7-5-5-7-5 and a rhyme scheme of abcabc. 

The author of the blog goes on to give examples of baiku, including a section titled, “Tales From Shakespeare, Retold In Baiku”. My favorite? “Romeo And Juliet”.

However, not every biker poem has to be formal. A light-hearted poem entitled “Bugs On My Face” proves the point:

I got bugs on my face
There’re June bugs and May flies 
On summer’s wind ride 
God knows when they‘re born
Now I know when they died

While plenty of biker poetry is available online, an anthology edited by Jose Gouveia, “Rubber Side Down: The Biker Poet Anthology”, is already available on Amazon.  

Maybe next year the rally should host an open mic?