https://www.sebikes.com/products/micro-ripper-12

The smallest SE bike ever! The Micro Ripper lets the tiniest of riders get their first feel of the balance of riding a bike. This micro-sized PK Ripper-styled bike is built with legendary SE features such as Floval shaped frame tubing and Landing Gear forks. The frame is built with an ultra-low standover height and kid-friendly geometry. The Micro Ripper is a perfect introduction to the SE lifestyle.