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Join Date: Oct 2009
Location: Loves Park, Illinois
Posts: 414
Bikes: 1897 Crescent Tandem, 1904 Rambler shaft drive, 1921 Schwinn Henderson, 1958 Schwinn Tiger, 1973 Raleigh International, 1982 Trek 420, 2010 Trek 720
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I broke my first spoke in my new Trek 7200 just two weeks after buying it (about 175 miles). My LBS replaced the spoke and I broke another one 30 miles latter. they replaced that one and I broke another 1/2 mile later. Trek sent out a completely new wheel and the LBS installed it under warranty. 6 weeks and 500 miles later no more broken spokes.
That seams to back up what CliftonGK1 said. Also I have ben told by another non Trek dealer that Trek had quality issues with a batch of spokes recently. My 7200 is a 2010 so I do not know if that was a factor.
Additionally with the new wheel the mechanic better fitted me with the bike and moved the seat forward about an inch and a half. That took some of the weight off the rear. I also started riding with 90 psi in the rear tire that calls for 60-80 psi and set the front shocks to maximum firmness.
So I changed four things at the same time making it difficult to know what had the biggest effect. My best guess is the wheel.