SRAM eTap AXS Service Manual page 8

Loosen the caliper bolts.
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Squeeze the brake lever several times to position the brake pads to
the proper distance from the rotor.
Center the caliper on the rotor, and tighten.
Spin the wheel and check the brake function. The pistons should move
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freely and there should not be excessive brake lever throw.
If there is no improvement in the brake function, proceed to
9
Caliper Service.
T25
T25 5 N·m (44 in-lb)
Disc Brake Pad Advancement Procedure
22
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