Kanye West is venturing out!

X17online has the EXCLUSIVE pix of Yeezy out BMX biking with pals -- and yeah, it's a surprising new hobby for Kanye.

We spotted the rapper -- looking very much like a kid -- wearing a motorcycle helmet, sweats and Yeezy Boosts. How clever and discreet of him! We have a feeling he's laughing under the helmet, because when has any other celeb figured out a way to outsmart photographers like this? You've gotta give him points for originality...

Yeezy was joined by several friends who followed suit with moto helmets as well. His bodyguard was on two wheels and another followed in an SUV.

But the big news -- we'll repeat it -- is that Kanye is NOT at home with Kim! He's wearing his wedding ring, which is important, but he's still not back at the family home with his wife and kids Nori and Saint. He's working, creating, making music and figuring things out. A source tells X17online exclusively: "Kanye's happy right now. He's positive and feeling healthy. He was overworked and not taking care of himself and now he's rebuilding and feeling good."

On Thursday Kanye was spotted at “Rick Owens: Furniture” art installation at the Pacific Design Center in West Hollywood, and he debuted his new blonde locks as he chatted with a few folks at the show. Italian artist Giovanni Bassan posted a photo of the rapper on Instagram and wrote, “K’s in da house.”

Kanye was discharged from UCLA Medical Center last month, and after that he received outpatient treatment at Kendall Jenner's former Los Angeles apartment. Last week he went home to the Bel Air mansion he shares with Kim very briefly, but on Wednesday night, he abruptly left the family pad.