Aaron M. Sprecher/Getty Images

Brad Pitt and Angelina Jolie's oldest son Maddox celebrated his 11th birthday on Sunday, and his dad got him a really cool gift - a Suzuki DRZ-125 motorbike, a rep for Suzuki told E! News.

Pitt bought the bike at a dealership in Ruislip, Germany. A source tells E! News, "He wants the boys to be able to ride them on private land. It'll be a fun thing for them to do, and obviously he has a real passion for bikes which he'd like to pass on."

The model Pitt purchased is specifically made for young riders and only reaches a top speed of 50 miles per hour.

Pitt and Jolie have six kids in all.