The BK1000 Deluxe Wheel Chock Combo Kit is the most trusted and secure trailering system for all sizes of motorcycles from cruisers to dirtbikes. Security and stability start with the steel wheel chock that automatically closes the front wheel securely in place. Apply the front tie-down for the ultimate stable ride for your bike. Then double up your stability by using the rear tire ratcheting tie-downs to lock the rear tire into place. By using this Combo Kit, you can ensure your bike will remain secure through potholes, gravel roads, and speed bumps.