If you've ever wondered how the ATV trails are groomed, you are not alone. Leveling drags do all the hard work. Here's what you need to know about leveling drags, gravel drags for ATVs, and general trail grooming so that you can get started on your next off-road adventure. What is a leveling drag? A leveling drag is a tool that you can use to level out an ATV trail. This is especially important if you're planning on doing any serious off-roading, as it will help ensure that your ATV doesn't get stuck in the mud or sand.