For SRAM RED or Force 1x cranksets with direct mount chainrings, we offer a power meter spider that pairs to a 4-bolt 1x chainring.
We have developed a new non-driveside DUB PWR equipped power meter for Rival eTap AXS. This will allow for any Rival 12-speed crankset to simply swap the left hand/non-drive side arm and attached DUB spindle to upgrade to the power version. Since the Rival integrated power meter is part of the non-drive side assembly, we offer this as an upgrade kit to any existing Rival 12-speed crankset.