The 20-inch wheels and 3-inch tires work great for stability and the low pressure enables the bikes to grab every bit of traction while giving you a unique floaty feel on snow, sand, and mud. This kids bike is fitted with an easy to use Shimano 7-speed drivetrain and twist shifter. Colorful paint will catch the attention of the little hero in your life at first glance. The Minifat Kids Mountain Bike is a ton of fun to ride and allows your aspiring Youth rider to feel confident on all terrain.