Building on the original Big Iron that was first introduced in 2018, the new Why Cycles Big Iron V2 still sports high-end titanium tubing and fat 27.5″ tires, but the latest version has a slightly longer reach and taller stack height, creating what Why describes as “the best balance of comfort and control that is unique to fat bikes.” While all complete builds come with 27.5 x 4.5″ tires, the frame also has clearance for 29 x 3.0″ or 26 × 5” tires.
The newest Big Iron still has adjustable chainstays (from 445mm to 460mm), two bottle mounts in the main triangle, and a third under the downtube, and can also accept racks and fenders. The low seat tube and curved top tube provide ample standover height while also leaving room for a longer-than-average dropper post. New for V2 is a replaceable Universal Derailleur Hanger (UDH), departing from the all-in-one design found on the previous version. Otherwise, most of the Big Iron’s specs remain unchanged, including a split seat stay for belt drive systems, a 100mm threaded bottom bracket, and boost 12x197mm rear hub spacing.
The Big Iron V2 is currently offered in three build kits, ranging from $4,499 (GX Eagle Kit) to $9,499 USD (XX1 Eagle AXS ENVE Kit). All three are specced with a carbon ENVE fork, Terrene Cake Eater Lite 27.5 x 4.5″ tires, a dropper post, and wide range 1×12 drivetrains. The frame costs $2,599, and the frame with carbon ENVE fork costs $3,099 USD. Frames and select complete builds are in stock and ready to ship now. Head to WhyCycles.com to learn more.
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