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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I don't know the specs of both, but if they both take pressed in 1-1/8" headsets then yes you can switch it over. You should also be able to use the same fork. You're not missing anything in your calculation but it's close so there's little room for error. You might possibly have an issue if the headset design requires a spacer below the stem, but a 2mm spacer should bail you out if it comes up.
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