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Old 05-19-07, 09:22 PM
  #17  
Ymmie
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Join Date: Jul 2005
Location: Minnesota
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Bikes: KHS XC504, Gary Fisher Piranha, GT Backwoods

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I will obviously need to buy disc brakes. Because of this, I will have to update my shifters. But the current XT shifters are for 9-speed cassettes. When my bike was built (Y2K), XT used an 8-speed cassette, meaning that my cassette and rear derailleur will also need to be replaced. I'm guessing the current XT uses a different chain than the old XT as well.
I'm not 100% positve about the new XT stuff but the past XT stuff has always been 8/9 speed compatible, and your hub will also accept both 8 or 9 speed cassettes, just differant spacers, overall width is the same. 8 speed chain is an 8 speed chain. None of this stuff would need to be replaced.

I can see Trek replacing the frame, but good luck getting them help spring for what you would need to replace. You could make the disc brake upgrade for $300 or less.
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