You do know that the TLR takes a 530 chain and sprocket set right? Not a 525.
Having said that, I use DID X-Ring Gold exclusively on both of my bikes, and I have yet to have a failure.
I sure wouldn't go to a 520 or 525 on a liter bike, but I know many people do with no troubles. I *have* seen a 520 let go on a TLR and shelled the case. Just somethin' to think about.
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