1mm spacer goes on before the cassette. The reason for it is that the bottom sprocket is not in line with the end of the carrier it is attached to, there is a slight dish. You can't use a 3mm spacer out of the middle of an old cassette.
@gbj_tester started
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1mm spacer goes on before the cassette. The reason for it is that the bottom sprocket is not in line with the end of the carrier it is attached to, there is a slight dish. You can't use a 3mm spacer out of the middle of an old cassette.