Had the same 3 sets under warranty so far on 2 different bikes , I hear it’s a bit of a problem on other makes too . Have to save for some Hopes eh ?are they deffo 615 and not m6000? I have had warranty problems with m8000 m7000 and m6000 lever pulls to the bar and wont return properly. two sets on my bike and one set on my wifes all replaced under warranty
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