Originally Posted by
Road Fan
I’m working with some old track gear now. I’m building up with a ⅛ chain, sprocket, and chainring, on a Stronglight 49D chain set, Additional chainrings are getting scarce, so I’d like to use 3/32”CW with the 1/8” chain. Does this raise any concerns?
Not in my experience. 1/8" chain runs fine on both 1/8" and 3/32" drivetrain components, allowing you to mix and match as needed. TA did make track chainrings for 1/8" chain that can mount on the 49D crank, but they're pretty scarce these days. They can be distinguished from the road chainrings by a "3" stamp, indicating 3mm (1/8") chain tooth profile, just below the tooth count stamp.
