Jul
26
i am looking for a trek bike either 3700 3900 or 4300 which is the lightest and will work the best
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![]() Very Nice Schwinn Airdyne Comp Exercise Bike Bicycle Great Condition w Computer US $192.50
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![]() Schwinn Montague Biframe Folding Bike US $152.50
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![]() Schwinn Lil Tiger bike US $102.50
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US $1,200.00



They are all good bikes.The best working bike is one that is maintained and lubed properly.
A 5 dollar bike that is tight and lubed is always better than a 3500 dollar bike that has loose bolts and rusty cables as the 5 dollar bike will get you from point a to point b succesfully.
4300.
Both have the same aluminum frame and components are virtually the same except for the fork. The 4300 come with a 100mm vs 80 for the 3900–not that it makes that big of a difference anyway.
All 3 bikes are meant as a dirt path/light XC trail bike, not for jumping or downhilling.
Good luck!