I am looking at buying a new bike that that comes with all x9. I have a friend who wants to sell his 2010 XX shifters and derailleurs to me that have a season of use. Just trying to decide if I would notice a performance differerence with the year old xx vs a brand new X9 setup.
Thoughts? It would be going on an XC race bike.
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Thread: New 2011 X9 vs used 2010 XX