Chain rings -- 8 vs 9 speed

Originally posted by rek
Hi guys, quick question ... I've found a good price on some Blackspire road chain rings that are marked as "8 speed"..

Will these be compatible with my 9 speed Shimano setup, or might there be differences (I'm guessing either through tooth width or ramping/pinning) that would screw things up?
There might be some slight differences,that would bother the ARs. Nothing will screw up.

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