The couple, who have been privately dating for a couple of years, announced they were working with Harley Davidson for a new project.
A video took a behind-the-scenes look at the couple's journey to the Olympic Peninsula, Washington.
Several shots showed the scenery and Mike and Leticia driving though on their motorcycles.
"She's a wonderful driver," Mike told the cameras while pointing at his girlfriend.
"I’m horrible at social media because I’m too busy living life," Leticia captioned the video.
"I know this video has been out for a little bit but I wanted to share it because it was such a magical experience and I’m just so f**king proud all the work that went into making it."
"Nothing in this life is easy. I didn’t land this spot for Harley for any other reason than being authentic and how I became that way was by fighting to stay true to myself every second of every day," she concluded.
Mike and Leticia seem to be expanding their career outside of American Pickers after the show appeared to be suffering.
The U.S. Sun can exclusively reveal that the February 21 episode, Tough As Nails, brought in 913,000 viewers.
American Pickers' Robbie Wolfe rages 'if you understood!' after he's accused of 'asking for too much' for his 1958 Chevy
This is the second highest-rated episode of the season, as the series has been struggling in ratings.
The U.S. Sun also exclusively revealed the Wednesday, February 14 episode brought in low numbers.
Roadside Relics brought in 774,000 viewers, as the episode featured Mike uncovering vintage movie posters while Robbie and Jersey Jon found rare Chevy signs.