WHY CYCLES Big Iron (frame)

Brand: Why Cycles
–20 %
WHY CYCLES Big Iron (frame)
€3 520,84 –20 % €2 816,67 €2 327,83 excl. VAT
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  • Frame
  • CaneCreek 40-series IS42/IS52
  • Seat Collar
  • Maxle

The delivery date of the pre-order bikes will be arranged with you by a sales representative.

Detailed information

Product detailed description


Built on new standard 27.5" thick wheels with clearance for up to 27.5×4.5" or 26×5" tires, this modern titanium steed will be your trusted companion in any endeavor to ride on snow or soft surfaces. The team at Why goes back to the early days of fat bikes in Alaska. The Big Iron is the culmination of many years of experience with this type of biking. Combined with modern design features and technical optimization of the bike's individual components, the Why - Big Iron is ready for a great ride.

It is named after the famous song by Martha Robbins. The Big Iron is designed to be the ultimate riding tool. Whether it's a short weekend trip on a local groomed trail or an epic 1,100-mile journey through Alaska. Modern geometry, a stiff yet flexible titanium frame, and a lifetime warranty make it a bike you'll be proud of and want to take its big tires everywhere.





  • Integrated standard headset 42 mm upper cup, 52 mm lower cup
  • BSA standard 100 mm threaded centre axis
  • Axle spacing increase 12 mm x 197 mm
  • Feet 12mm fixed axle, 1.75 thread pitch, compatible with adjustable feed and belt drive
  • Bottle holders - bottle holders on seat tube, upper down tube, lower tube. Third bottle hole attachment on down tube for attaching accessories
  • Mounts - All standard rack and fender mounts
  • Seatpost - 31.6 mm
  • Seat clamp - 34.9 mm
  • Brake - Max 180 mm rear with adapter, standard for direct mounting
  • Ground clearance - Max 27.5 x 4.5″ tires, 26 x 5.0″ tires or 29 x 3.0″ Big-Iron-Geo-Chart
  • Pedals - without pedals
  • Sizes S / M / L / XL
  • Frame Warranty -  Lifetime Warranty(Details Here


** Specifications are subject to change without notice**





The Big Iron uses truly modern mountain bike geometry adapted for use with huge 27.5 fat tires. The reach is longer than most other fat bikes, allowing the same body position with wider bars and a short track. The handling benefits of this setup are magnified when riding on snow with a sometimes unstable front tire at low pressure. The chainstays are adjustable from 445mm to 460mm, so you can really dial in the rear shock of this bike based on your chosen tire size. The lower seat tube and curved top tube allow for excellent standover height and allow you to use a longer than normal seat tube and still retain a nice big front triangle if you choose to use a frame bag to store your gear.



We make our bikes from the best possible materials for the terrain we ride. We use the highest quality grade 9 3/2.5 titanium for our frame tubes and 6/4 titanium for the head tube, center compound shell and machined bits all around the frame. Wonder material has so many outstanding ride quality attributes: 43% lighter than steel, higher strength-to-weight ratio than aluminum, significantly more resistant to impact damage than carbon, and the best vibration damping properties of the three materials. We think you'll agree that we've achieved our goal of creating titanium frames with a modern twist by engineering internal cable routing, integrated headsets and threaded bottom brackets. For riders who want a high-end, comfortable and fast bike built to last a lifetime, we believe a properly engineered titanium frame is the best choice and a lifetime warranty.



Additional parameters

Category: frames
Warranty: lifetime
Vytvořil Shoptet | Design Shoptetak.cz