absoluteBLACK Oval Direct Mount 1x Chainrings for SRAM 3-Bolt cranks are specifically designed for SRAM cranks with a 3-bolt direct mount interface and a removable spider. These chainrings offer significant weight savings compared to a standard spider and chainring combination. Crafted from CNC-machined 7075 aluminum with an anodized finish, they deliver exceptional durability. The ovality is optimized for each chainring size, ranging from 10.2% to 14.4%, with timing set at 110.5 to 116.3 degrees after TDC (top dead center).