When I'm feeling a 'bikers high' it's usually:
"Allez! Allez! Allez!"
I've even said it out loud!
When I'm struggling it's a fairly simple:
"Do it!" Over and over again in my head.
Yeah, not real interesting, but it does the trick! My favorite is the joyful "Allez!" exclamations though. Just reminds me how much I love being on my bike.

