TRP Spyer
https://www.youtube.com/watch?v=oWAb8HUpcWU
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RESET BRAKE CABLE TENSION AND ACTUATION ARM PRE-LOAD
Wind in the barrel adjusters on the brake calipers first all the way (clockwise), then back them out two full turns (counterclockwise) so you have enough room for adjustment.
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SET PAD POSITION
Take your 3 mm hex key and insert it into the black holes on either side of the actuation arm. These are the pad adjusters. Make sure the hex key bottoms out into the adjuster.
The pad adjusters work by moving the brake pads closer to the rotor when turned clockwise. It’s best to adjust by small increments – a quarter-turn at a time, at the most. Test the pad spacing by spinning the wheel and listening for any rotor rubbing. If there is any audible rubbing, back out the pad adjusters until the rotor quiets down.
It’s entirely possible for the pad adjuster on one side to be set too far away from the rotor while the other is set too close. That usually means only one pad is doing the lion’s share of the deceleration work, effectively flexing the brake rotor one way with no counter-force, and is wearing away far quicker than its opposite number. The pads should be adjusted so they share braking loads and are balanced in wear rate.
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TOOL-FREE ADJUSTMENT WITH THE BARREL ADJUSTER
If you’re pressed for time and have no tools on hand, a quick way of adjusting the Spyre’s brake pads is by the familiar barrel adjuster. Backing out the barrel adjuster by turning it counterclockwise brings the pads closer by increasing the pre-load on the actuator arm. As before, listen for rotor rubbing. If it happens, wind the barrel adjuster in clockwise to decrease pre-load and spread the pads away from the rotor.
If your calipers’ pad adjusters were set correctly, you’ll find that small adjustments at the barrel adjuster are all you should need to compensate for pad wear. If more than five full turns of the barrel adjuster were needed to cinch up the braking action, that’s a sign that the caliper’s pad adjusters are set too far away and need to be re-tuned.