Lemond Revolution - Upgrading 9s Cassette to 11 Speed

Get a Campy freehub.

Either you're running Campy already and there's nothing to worry about, or you're SRAM/Shimano and Lennard Zinn says that'll work just fine too.

The Lemond manual might answer this question with an odd footnote on page 19, which states "11-speed components will fit, but may not allow full use of the cassette." Assuming you own the same model, that is. http://www.lemondfitness.com/files/fetch/revolution/300223-RevolutionOM-RevB.pdf"

If anyone is still wondering about this, I recently picked up a Lemond Revolution, with the 10speed free hub. What I did to make it compatible with my 11 speed grippe is: on my 11-28 cassette, remove the 12 tooth cog, and add a spacer on the inside before the 28tooth, and bam. Shifts perfectly, no limit screw adjusting or anything.