Thread: Help choosing a Trek FX
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Old 06-01-14 | 10:53 AM
  #45  
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Wanderer
aka Phil Jungels
 
Joined: Apr 2005
Posts: 8,234
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From: North Aurora, IL

Bikes: 08 Specialized Crosstrail Sport, 05 Sirrus Comp

I never heard of one wearing out...... I think it is more of an isolator(an interrupter), than a shock absorber, isolating vibration from upward travel.
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