Procedure

so the caliper can move freely.

to fully retracted (turn the red dials on a BB7 fully outward — counter-clockwise as viewed from the inboard side).

at the cable pinch bolt and tighten (4–5 Nm).

in this position.

(the one on the spoke side) inward by turning its red dial clockwise until it just contacts the rotor. Then back off 1/4 turn.

the same way — turn its dial inward until contact, back off 1/4 turn.

Adjust pad dials further inward if needed for a firmer lever or more bite.

same idea but both pads adjust via similar mechanism. The Spyre's design self-centers, so bias is already balanced. ---

Procedure #

Loosen caliper mounting bolts so the caliper can move freely.
Set both pad adjusters to fully retracted (turn the red dials on a BB7 fully outward — counter-clockwise as viewed from the inboard side).
Squeeze the cable taut at the cable pinch bolt and tighten (4–5 Nm).
Squeeze the brake lever firmly and hold.
Tighten the caliper mounting bolts in this position.
Release the lever.
Adjust the inboard pad (the one on the spoke side) inward by turning its red dial clockwise until it just contacts the rotor. Then back off 1/4 turn.
Adjust the outboard pad the same way — turn its dial inward until contact, back off 1/4 turn.
Test the lever pull and the wheel spin. Adjust pad dials further inward if needed for a firmer lever or more bite.
For TRP Spyre (dual-piston): same idea but both pads adjust via similar mechanism. The Spyre’s design self-centers, so bias is already balanced.

Mechanical Disc Brake Setup (Avid BB7 / TRP Spyre)