SRAM Centrelines are available in 140 and 160, and aren't too expensive. Can't think of anything cheaper which would be available in both sizes.
TRP might come in cheaper
I mean at one point I was pretty much giving them away.
Indeed. Thanks. :-)
@Howard started
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SRAM Centrelines are available in 140 and 160, and aren't too expensive. Can't think of anything cheaper which would be available in both sizes.