A new range of MTB chainrings from Hope that offer a new tooth profile compatible with all major drive types, along with updated Spider designs.Features:Material:7075-T6 Aluminium Brose/Specialized Direct Mount Chain Line:52 mm Compatible with 9/10/11 and 12-speed drives, including Sram T-Type and Shimano HG+ Asymmetrical tooth profile designed for compatibility and functionality with various drive systems.Improved mud repellency.Improved chain retention.Better performance at extreme chain angles on modern 1-speed.-Drisystems The Tooth profile allows for higher chain wear before function is impaired, thus extending the service life Direct Mount chainrings have a new leg design with improved strength and stiffness Teeth count:34, 36.