After all the buzz around wider boost hubs leading up to Sea Otter, we weren’t surprised to see a new bike from Trek to take advantage of the added tire clearance. What we weren’t expecting from Wisconsin was an entirely new range of plus/mid-fat/and fat bikes with (even) more new tire sizes.
It’s getting to the point that just calling a bike “fat” doesn’t really mean that much. What started as basically just a 3.7″ tire has morphed into an increasing number of sizes that now will include even a 27.5″ fat. The way trek sees it, tire sizes from 2.8-3.25″ fall into the plus/mid-fat category while 3.25-5″ tires qualify as fat. Then there is the wheel size itself. Originally limited to 26″ hoops, now riders have the choice between 26, 27.5, and 29″ wheels with varying rim widths.
Why so many? Well, as the fat bike continues to evolve, so does the manner in which they are ridden. While the Stache is what Trek thinks of as the “trail hardtail perfected,” the Farley gets broken down into different groups depending on the intended terrain. The stratification of the fat tires is intend to ultimately provide the most fun bike possible…
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