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Why Cycles finally answers the fat bike question with titanium Big Iron 27.5

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After introducing titanium gravel bikes, plus bikes, and even a dirt jumper, Why Cycles will finally have a titanium fat bike. Even with a name like the Big Iron, the fat bike will be anything but, with a lightweight titanium build that represents Adam Miller’s latest take on fat. Miller has quite the resume when it comes to fat bikes after growing up in Anchorage, AK, and then working with 907 bikes, only to go on and start Borealis Fat bikes. Miller sold his share in Borealis in 2015, and is finally ready to dive into the world of fat bikes again with the Big Iron.

Why Cycles Big Iron 27.5″ wheeled titanium fat bike

The culmination of Miller’s 12 years of fat bike experience, the Big Iron uses a high end 3/2.5 grade 9 titanium frame with 6/4 titanium used for parts like the head tube, threaded BB shell, belt drive split, and sliding dropouts. Built around 27.5 x 4.5″ wheels and tires, the frame is also capable of running 26 x 5″ or 29 x 3″ wheels and tires giving you plenty of options.

Frame details include a 100mm threaded bottom bracket shell with chain stays that are shaped to clear the narrower q-factor cranks from Race Face or SRAM. Out back is a 197 x 12mm rear end with a belt drive compatible split in the dropout. Chain stays are adjustable in length from 445 to 460mm, and the frame uses internally routed cables with the option for an internal dropper post.

Suspension corrected, the Big Iron can be run rigid or with a suspension fork, and it will be available in three stock build options and as a frame or frameset. Pricing starts at $2,249 for the frame and $3,999 for complete builds, with pre-orders available with a $500 deposit. Expect bikes to ship by July 1, and they’ll ship out in custom EVOC PRO travel cases with a 30 day no questions asked return policy, and a lifetime warranty on the frame. We’ll have more details on this bike from Sea Otter!


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