RockShox Maxle Lite Through-Axle
The 20mm Maxle Lite (image may differ from actual item).
Details
RockShox's Maxle Lite is a lightweight aluminum through-axle system. It lets you remove and install your wheel as fast as with a standard quick-release while delivering the awesome stiffness with the improved strength and control of a through-axle. Plus, the lever can be closed in whatever position you like and no tools are required for installation and use!