Setting up RD from new. I didn't tighten it super hard or anything – although I may have screwed it gently to it's limit (the largest cog is 52t so I'm struggling to dial it in with the derailleur hanger extender.)

Anyway, it still functions ok (for the moment). Is it safe to ride with this cracked? I believe my other RDs have had this happen before. Suppose I'm wanting to check to see if I should pursue warranty or not.

So also, is this my fault?

by InvestigatorOk6278

1 Comment

  1. Looks like that plastic collar is there to prevent the limit screw vibrating loose. So it isn’t needed, but you should apply Loctite on the threads to prevent loosening since the plastic piece won’t do that anymore.

    Not a warranty issue.

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