According to the DID website the newer 520ERV7 chain is heavier by 3.41 lbs (1.54 Kg) per 100 links. I have personally never used either ERV chain and normally just use their 520ZVM-X version which I?ve never had any issues with.
https://didchain.com/2020-updates/
Did anyone try the new DID 520ERV7 chain? What is the difference in weight if any?
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