Originally Posted by
fietsbob
I have several 1 by IGH bikes they're fine with simple flat old style chainrings ..
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That's good info if the OP were talking about converting to singlespeed or an IGH, i.e. chainline is presumably very good and doesn't change. But the OP is not talking about that, his chainline will change radically as he shifts from one end of the cassette to the other.