| A numpty chain question...
Excuse the lack of knowledge...
Im looking to replace the chain on my 749 as Im going up a couple of teeth on the rear and need a slightly longer one.
Will any good quality 525 chain do?
Do I need to worry about the different codes that go after the number? The manual says standard fitment is a DID 525 HV? What does the HV signify? | 
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