absoluteBLACK Oval Narrow-Wide Direct Mount Chainrings are expertly engineered for SRAM 3-Bolt cranks featuring a direct mount interface with a removable spider. These chainrings deliver significant weight savings compared to traditional spider and chainring setups, crafted from CNC machined 7075 aluminum with an anodized finish that ensures exceptional durability and long-lasting performance.The oval shape is meticulously optimized for each chainring size, with ovality ranging from 10.2% to 14.4% and timing between 110.5 to 116.3 after top dead center (TDC). This design reduces knee stress, helping to keep your legs fresh during rides without altering the natural pedaling feel. Key features include:Patent-pending narrow-wide tooth profile that securely holds the chain in place, minimizing chain drops3D-machined teeth engineered for superior mud shedding and quieter operation in challenging conditionsExcellent weight-to-strength ratio for enhanced performance and reliability