Trek 7100 multitrack
Bikepedia list the Trek 7100 as having been in production from 2002-2012. In some cases you can determine the year of production by seeing which color combinations or components were available for a particular year. Bicycle values are difficult to state as they change over time and can vary greatly by geographic area. The msrp was highest at the mid $400 range. Your best bet is to look at similar bikes with similar component levels and compare price and condition.

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