#2015 TREK STACHE 7 SEATPOST MANUALS#
#2015 TREK STACHE 7 SEATPOST PLUS#

The Stache will make use of the new Bontrager Line Plus wheels which offer a 39mm internal and 44mm external width with a TLR and OSB rim bed and Boost compatible hubs with Bontrager’s Rapid drive freehub. Based on the chart above you can get an idea of what the different wheel/tire sizes will do to the geometry of the Stache but due to the variance in listed tire sizes the numbers may change slightly based on the tire used.

The frame will accommodate 27.5+ but at this time Trek sees 29+ as the better option since it offers the best roll over, angle of attack, and contact patch. Available in both 27.5 and 29″ the Magnum uses Boost 15×110 front spacing to allow for a front wheel that matches the stiffness of the rear.Ĭurrently, the Stache is offered complete only with 29×3″ tires. We’ll get into the details of the fork in another post, but the Cliff’s Notes version is that it is the first purpose built fork for plus size tires. Of course none of this would be possible without a suspension fork which comes in the form of Manitou’s new Magnum Comp and Pro.

#2015 TREK STACHE 7 SEATPOST MANUALS#

Instead it is purpose built to be a bike that rides, carves, and manuals like a trail bike, just with huge tires. The key for the new frame for the Stache was that it wasn’t just a stretched 29er frame to fit bigger tires.

Trek actually found that stays could be too short in this application as they make the bike too stiff and makes for a rough ride. The final stage of the project involved a geometry change and tubbiest tweaks and resulted in a bike that has impressively short 405-420mm chain stays with tire clearance for 29+ tires. After deciding to move to 29+ in 2013, Trek realized the bike needed a higher bb to accommodate for the sag of the bigger tires. Implemented to find out what the absolute shortest chain stays could be for a 29er, the project started with a bike that had 398mm stays and clearance for a 29×2.5″ tire. The beginning of the new Stache came about when Trek started Project Weird in 2012. Boost offers the ability to run wider tires while keeping chain stays super short and also allowing for the use of larger single ring chainrings. With the new 15×110 and 12×148 Trek was able to build 29″ wheels that are about as stiff as a 27.5″ and has wheels on the way that will increase stiffness by as much as 30% once they make the most out of the new flange geometry. If you want the most distilled version of the why for Boost hub spacings, the answer seems to be increasing the stiffness of 29″ wheels. The stratification of the fat tires is intend to ultimately provide the most fun bike possible… 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. Why so many? Well, as the fat bike continues to evolve, so does the manner in which they are ridden. Originally limited to 26″ hoops, now riders have the choice between 26, 27.5, and 29″ wheels with varying rim widths. 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. 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. It’s getting to the point that just calling a bike “fat” doesn’t really mean that much. 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. Learn more.Īfter 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.

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2015 trek stache 7 seatpost