SRAM RED AXS 2x Power Meter Chainring Kit - 54/41t 2x12-Speed 8-Bolt Direct Mount BLK/Silver E1 Boxxer 2010+ B17 provides it

B17 provides it

Aero chainrings are NOT compatible with Shimano GRX 600 series cranksets (FC-RX600-1

}SRAM Force 2x Chainring Kit - 50/37t 2x12-Speed 8-Bolt Direct Mount Black E1

and bottom-out/negative-bumper kits for servicing RockShox rear shocks (pre 2008 oil-damper units are non-serviceable)

SRAM RED AXS 2x Power Meter Chainring Kit - 54/41t 2x12-Speed 8-Bolt Direct Mount BLK/Silver E1 Boxxer 2010+ B17 provides itIntegrated power meter and chainring combo Accurate to + 1. 5% and unaffected by temperature changes Integrated rings are incredibly long lasting Combine with 8 bolt compatible crankarms SRAM Model ID: PM AXS KITR E1 TECH SPECS BB Inclusion No BCD Direct Mount SRAM 8 Bolt Connectivity ANT+ BT Speed 12 Teeth 54 41