I think there has been an unannounced change to
Vexpro #25 roller chain in the last year or so. Can anyone corroborate this experience?
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The new chain is very clearly visually different (dark matte surface finish instead of glossy lighter gray).
Triple Helix also has some evidence that the new un-stretched length is different as well. The
.018 adder we typically apply to c-c distances now appears to be way too big.