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Old 01-08-2013, 11:45 PM   #6
Joined: Jan 2006
Location: Santa Maria, CA
Oddometer: 1,281
I do recall one time, on an XRL650 that was all hotrod, and would cruise at close to 100, that when I pulled a tire off, there was all this rubber dust in there, and a mechanic/tire guy told me that was the tube moving around at speed, grinding itself apart, maybe that is what they are trying to avoid.
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