The ROLLCii V.2 1X direct-mount chainring is crafted from 4mm thick 7075-T6 alloy plate using CNC machining technology, striking a perfect balance between lightness and durability. This chainring features a special narrow wide tooth profile, allowing seamless compatibility with multiple brands' 9 to 12-speed chains, offering you greater flexibility in choice. The SRAM DM 8-BOLT direct-mount interface simplifies the replacement and installation process. Whether you're challenging yourself on rugged mountain trails or enjoying a ride on country roads, it easily meets the demands of any adventure.