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fat-bike: A bicycle with tires that are 3.8" wide or larger. Designed for use on any and all conditions such as snow, sand, mud, singletrack trails, rough urban riding etc...
"Hey man, don't you have a tough time riding around in the winter or worry about cracks and potholes riding a bike? "

"Nope! I ride a fat-bike - i can ride over everything all the time!"
by two9mtnbikeman July 31, 2016
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