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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an 8 or 9s same chainring should work. The correct separation should be built into the crank arm.
However, you need to be a bit careful because not all inner rings have the same offset, or distance from the crank arm face to center of the tooth. Too much offset will allow a narrow chain to jam between the chainring and crank arm.
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