Introducing the Why Cycles Big Iron, a titanium fat bike built around 27.5″ wheels with room for 29+ or 27.5 x 4.5″ rubber…

  • Highlights
  • Angles (LG): 68.7° Head tube, 73° Seat tube
  • Stack/Reach (LG): 620mm/457mm
  • BB Drop/Chainstay: 64mm/445-460mm
  • Bottom Bracket: 100mm Threaded
  • Hub specs: 12 x 197mm rear
  • Seatpost Diameter: 31.6mm
  • Max tire size: 27.5 x 4.5″ / 26 x 5.0″ / 29 x 3.0″
  • Price (frame): $2,249

Colorado-based Why Cycles, the two-year-old company that designs, manufactures, and distributes high-end titanium bikes, today announced the official release of its brand new fat bike, the Big Iron. Why Cycles is a small company that is quickly picking up traction with its “modern take on traditional titanium,” producing unique bikes that are beautifully designed and engineered, and geared toward providing a fun and responsive riding experience.

As the fifth model in Why’s lineup, the Big Iron looks to be its most feature-packed and versatile offering yet, and one that would lend itself nicely to a variety of multi-season bikepacking expeditions. Although similar in looks to the Wayward, their 29+ mountain bike that we’ll be reviewing soon, the Why Cycles Big Iron is designed around 27.5″ fat tires, but can also fit 29 x 3.0″ tires, 27.5 x 4.5” or 26 x 5”. We can see this as an attractive bike for anyone looking to invest in a single go-anywhere, take-on-absolutely-anything rig.

Why Cycles Big Iron Titanium Fat Bike
  • Why Cycles Big Iron Titanium Fat Bike
  • Why Cycles Big Iron Titanium Fat Bike
Why Cycles Big Iron Titanium Fat Bike

Why Cycles Big Iron Specs

  • Clearance for 27.5×4.5” or 26×5” or 29×3.0” tires
  • Adjustable chainstay length (445mm-460mm)
  • Belt drive compatibility
  • 100mm threaded bottom bracket
  • 197x12mm rear spacing
  • Chainstays designed to fit the narrower Q-factor RaceFace or Sram fat bike cranks
  • Full internal cable routing, including internal dropper post routing
  • Lifetime Warranty

The Big Iron is made from the same Grade 9 titanium as the company’s other models, with a machined 6/4 titanium integrated head tube, threaded bottom bracket shell, stealthy belt drive split, and sliding dropouts. The frame also has extra water bottle bosses (with a triple on the down tube and a pair under the downtube), and rack and fender mounts.

According to Adam Miller, Why’s founder and bike designer, who previously worked with Alaska-based 907 bikes and also founded Borealis Fat Bikes, where he designed and marketed the first carbon-fiber fat bike to enter the market, “This bike really hits close to home for me. I absolutely love fat bikes, and this bike comes from my last 12 years of fiddling with and working to perfect fat bikes. High-end titanium is the best material for a fat bike in my opinion, and I really can’t wait to see the adventures that riders will take with their Big Iron.”

Why Cycles Big Iron Titanium Fat Bike
  • Why Cycles Big Iron Titanium Fat Bike
  • Why Cycles Big Iron Titanium Fat Bike
Why Cycles Big Iron Titanium Fat Bike

Why Cycles is taking reservations for the Big Iron now with a $500 deposit; it will be available as a frame, frameset, or in three different stock-build configurations. Frames and complete bikes will ship to customers around July 1st of this year. The price for a Big Iron frame is $2,249, and complete builds start at $3,999 with an eagle GX drivetrain and Bontrager Haru Pro full carbon rigid fork. Why provides a 30-day, no-questions-asked return policy, a lifetime frame warranty, and, as a nice bonus, Why ships every complete bike in an Evoc Pro travel case for the customer to keep.

Find more information by visiting or by calling/texting the company directly at 801-698-3678.



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