Join Date: Jul 2004
Location: Ffld Cnty Connecticut
Bikes: Old Steelies I made, Old Cannondales
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There's a microscopic difference in the spacers between chainrings on some. Others are sold as 9-10 speed.
I use a "5-speed" crankset from 1985 on my Campy 10-speed bike.
Using a narrower chain on a tiny bit wider crank is ok. going the other way might not work.
Bikes: Old steel race bikes, old Cannondale race bikes, less old Cannondale race bike, crappy old mtn bike