Join Date: Apr 2009
Location: New Rochelle, NY
Bikes: too many bikes from 1967 10s (5x2)Frejus to a Sumitomo Ti/Chorus aluminum 10s (10x2), plus one non-susp mtn bike I use as my commuter
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The red spacers go between all the sprockts except the smallest which usually has a built in spacer. The extra spacer is most likely a spare for use on freehub bodies which require a spacer behind the cassette.
There's also the unlikely possibility that the first sprocket's built in spacer isn't full width, so it might go there, but I've never seen it done that way. Use your common sense and mechanical instincts to work it out. The keys are that all the sprockets need equal (or very near equal) spacing, and the first one has to overhang the end of the freehub body by 1mm ir a bit more so the lockring can compress the cassette without bottoming on the freehub body.
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“Never argue with an idiot. He will only bring you down to his level and beat you with experience.”, George Carlin
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