Here are the Top 10 Biker Songs.
'Motorcycle Man' Saxon
'Live to Ride, Ride to Live' Twisted Sister
'Ballad of Easy Rider' Roger McGuinn
'Freewheel Burning' Judas Priest
'Motorcycle Mama' Neil Young
'Midnight Rider' The Allman Brothers
'Bad Motor Scooter' Montrose
'Bat Out of Hell' Meat Loaf

Any AC/DC:
Born to be wild Steppenwolf
Smoke on the water…Deep Purple
Lick it up…Kiss
Rock n Roll all night..Kiss
Rock and Roll Hoochie goo…Rick Derringer

Send me your top 5 and we will publish the entire list so you can load those mp'3s and GO!

Also, from the website "Harley Road Songs":

Harley Davidson Road Songs features a total of 30 hard rock classics spread across two discs. All of the songs either reference the biker lifestyle or feature biker motifs. The emphasis is partly on '70s legends -- Bob Seger, Lynyrd Skynyrd, the Allman Brothers -- and a couple of hard rock bands: W.A.S.P., Great White, and so on. Nearly everything here is a well-known song, some of the bigger anthems being Bad Company's "Bad Company," Steppenwolf's "Born to Be Wild," Sammy Hagar's "I Can't Drive 55," Ted Nugent's "Cat Scratch Fever," and Nazareth's "Hair of the Dog." There's nothing particularly special or novelty here -- these songs have been anthologized countless times. However, the variety of songs and the large number of anthems makes this a fun collection perfect for road trips.