Originally Posted by
cyccommute
The Spykes use a 3 mm Allen wrench and can be a bit delicate. Out of the box, the adjusters on the Spykes were too tight and the small wrench needed tends to round out the aluminum easily. I had to get replacements from TRP, which they sent to me without question and welcomed the information that they were too tight in the caliper body. It was a problem, however.
My Spyers came with the adjusters free enough that I had no problems using a 3 mm hex key to center the pads. Perhaps TRP took your experience to heart.
Note to the OP: If you can change your order, pay the premium and buy the Spyre-SLC brakes. Their arch that is pulled by the cable to apply the brakes is carbon, not aluminum, and should better tolerate the corrosive conditions you ride in. The weight difference is negligible so don't buy them for that reason.