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I can't see the video in the OP but so far on street mine are silent with light braking. There is a noticeable card in bike wheel sound when braking hard (like seeing a cop)
Haven't track them yet though but I imagine it will make that sound on track too. Who care, normal street driving (light braking) it is silent.
I have carbotech 1521 on right now, ill have XP10 for track
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