Chainring WOLF TOOTH COMPONENTS POWERTRAC DROP-STOP CHAINRING 30T SRAM DIRECT MOUNT 3MM OFFSET FOR BOOST CHAINLINE POWERTRAC CR1057 part name: Chainringpart make model: WOLF TOOTH COMPONENTS POWERTRAC DROP-STOP CHAINRING 30T SRAM DIRECT MOUNT 3MM OFFSET FOR BOOST CHAINLINE POWERTRACCR1057bike part approved: