Wolf Tooth direct mount stainless steel chainring for SRAM (left) - http://www.wolftoothcomponents.com/collections/chainrings/products/stainless-steel-direct-mount-for-sram-gxp-cranks-and-long-spindle-bb30 Wolf Tooth Direct Mount Bashring for Stainless Steel Chainrings (Right) - http://www.wolftoothcomponents.com/collections/chainrings/products/direct-mount-bashring-for-stainless-steel-chainrings