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How do dual 48.8/51.8 FDs do the 3mm offset?

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How do dual 48.8/51.8 FDs do the 3mm offset?

Old 08-24-19, 09:54 PM
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amadeus88
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How do dual 48.8/51.8 FDs do the 3mm offset?

Some Shimano FDs advertise themselves as dual chainline compatible: 48.8 mm for 142 mm O.L.D. and 51.8 mm for 148 mm O.L.D.

Just curious as how the 3 mm offset is done. For example, the SLX FD-M7100 are all dual chainline compatible.

TYIA.
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Old 08-24-19, 11:42 PM
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HTupolev
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Limit screws.
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