School is in. The subject? Dirt Jumping/Mountain Biking 101. And, the focus today is Kona's Shred 20, a little ripper sporting the same famous design and materials as Kona's big Shreds, just downsized with 20-inch wheels for the 5 to 8 year-old set. It's ready to tame the trails with a sweet-riding Kona 6061-aluminum frame and a 50mm-travel suspension fork to soak up the bumps. Plus, it's built with first-rate components, such as a 6-speed Shimano and FSA drivetrain, confidence-inspiring disc brakes and grippy Schwalbe tires. Get them started in style on the Shred 20.