Step into race-proven performance. The R- Classic binding is designed for competitive and recreational racers. The binding is compatible with all NNN and Prolink boot soles. The system features easy, tool-free fore and aft adjustability for customized performance based on snow conditions. A user-friendly step-in system makes for quick entry. It is only compatible with the Quicklock IFP plate. Tunable Performance Quicklock binding design offers easy on and off plus tool-free adjustment to fine-tune binding position to meet the conditions. Double Lock Slider (race) and Clip Lock Slider systems offer easy installation and adjustment on new IFP binding plate Classic Flexors offer tool-free replacement for progressive power transfer and better ski control for classic skiing Quick, Tool-Free Set-Up Classic Specific Flex Easy to Use