I have tektro on my fixed and I'd say they are probably comparable to Tiagra quality. Better than Sora, but noticeably worse than 105.
BTW, they are much, much, much better than Nashbar house brand brakes.
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Cat 2 Track, Cat 3 Road.
"If you’re new enough [to racing] that you would ask such question, then i would hazard a guess that if you just made up a workout that sounded hard to do, and did it, you’d probably get faster." --
the tiniest sprinter