Dax Shepard bonds over dirt bikes with 8-year-old daughter: 'This is as happy as I get'

Dax Shepard is a proud girl dad.

On Tuesday, the 46-year-old actor shared a photo and video of himself and his daughter Lincoln, both sporting protective gear as they rode dirt bikes on a course. Shepard used the caption to express his excitement.

"This is as happy as I get. Riding with my eight year-old, trailing her at all times so I don’t miss a single 'air,'" he wrote.

Fans took to the comments to praise the father of two.

"Good dads are the best," a fan said.

"That is so bad ass! Love this so much. Doing 'tough' things with my dad as a girl are some of my greatest memories," a commenter wrote, with another adding, "The best memories you rock at being a Dad!" another sharing, "Love it! I can’t wait to ride my my daughter!!"

In a recent interview with People and Parent Magazines, Shepard and wife Kristen Bell, with whom he also shares 6-year-old Delta, opened up about parenting. The two have successfully kept their daughters' faces private, even on social media, but have been open over the years about the ups and downs of parenting.

"I figured out that if I scratch my younger daughter's head extremely hard­ — her request — she is out cold within 90 seconds," Shepard humorously noted.

He also admitted that he wished someone would have warned him that he "will never have anything again" after having kids.

"That would've been a good heads-up. If you like that there are no crumbs and toys on your floor, say goodbye to it. The quicker you come to accept that you're gonna live in a pigsty and that everything will be vaguely broken — the quicker you can accept that, the happier the experience is. We fought it for like six months," he explained.

Bell added, "It's not worth the stress. You just gotta surrender, because if you spend your whole time, you're gonna lose and you're gonna be mentally fatigued. Then your kids see that you're stressed 'cause objects are in different places."