Why Cycles

Why Cycles Big Iron V2 - GX Eagle/Manitou Mastodon Pro

$7,499.00 $6,799.00 Save 9%
Shipping calculated at checkout.
Size: Medium

Pickup available at Warehouse

Usually ready in 2-4 days

Need a little help? We know that finding the right fat bike can be hard. Give us a call at 844-464-2453, or send us an email at eh@fatbikes.ca for pro advice!

Why Cycles Big Iron V2 Titanium Fat Bike

The Big Iron is built around the new standard 27.5” fat bike wheels with clearance for up to 27.5×4.5” or 26×5” tires.  This modern titanium steed will be your trusty companion on any snow or soft-surface endeavor.

The crew at Why goes way back to the early days of fat biking in Alaska, and the Big Iron is the culmination of years of fat biking experience combined with modern design features, and an engineering oversight to optimize Why’s titanium tubing to the rigorous riding the Big Iron is made for.

Named after the the famous Marty Robbins song, the Big Iron is designed to be a tool to get the job done. Whether its a short weekend jaunt on the local groomed single track or an epic 1100 mile journey across Alaska, the modern geometry, stiff-yet-supple titanium frame, and lifetime warranty make this a bike you’ll be proud to take anywhere that requires big tires.

Check out our review of the Big Iron V2 **Complete Build kits may vary based on current parts availability. FBC builds most of our bikes with Raceface, PNW or OneUp cockpit components which you can outline when you discuss your build. Standard tires would be Terrene Cake Eater 27.5 x 4.5 or Yippee Ki Yay 27.5 x 4.3.

DETAILS THROUGHOUT

Named after the the famous Marty Robbins song, the Big Iron is designed to be a tool to get the job done. Whether its a short weekend jaunt on the local groomed single track or an epic 1100 mile journey across Alaska, the modern geometry, stiff-yet-supple titanium frame, and lifetime warranty make this a bike you’ll be proud to take anywhere that requires big tires.

BECAUSE TITANIUM IS MAGIC

Why Cycles makes their bikes from the best materials possible for a wide variety of terrain. They use the highest quality Grade 9 3/2.5 titanium for their frames’ tubing, and 6/4 titanium for the head tube, bottom bracket shell, and machined bits all over the frame.

The wonder material has so many excellent ride quality attributes: 43% lighter than steel, higher strength-weight ratio than aluminum, significantly more resistant to crash-damage than carbon, and the best vibration damping properties of all three listed here.

We think you’ll agree that they achieved their goal of creating titanium frames with a modern twist by engineering guided internal cable routing, stealth dropper post routing, integrated headsets, and threaded bottom brackets. For riders who want a high-end, comfortable, fast bike built to last a lifetime, we believe a properly made titanium frame is the best option.

Build Kit

Fork Manitou Mastadon Pro
Headset Cane Creek
Bottom Bracket Sram Dub 100mm
Crankset Sram GX Eagle Fat 5
Stem PNW
Handlebar PNW Range 35mm
Seatpost PNW Loam w/ Range Lever
Saddle WTB Volt
Grips Raceface
Shifter Sram GX Eagle
Cable Housing Jagwire Shift
Derailleur Sram GX Eagle
Chain Sram GX Eagle
Cassette Sram GX Eagle
Brakes Sram G2R
Rotors
SRAM Centerline 160mmF/180mmR
Wheelset Corvus Big SU 27.5/XD Driver
Tires Terrene Cake Eater 27.5x4.5 or 45N Dillinger 5


*Builds are subject to slight changes based on availability. Customers will be notified

How our Builds Differ from the Stock Why Cycle’s Build:

  •  We start with the industry’s most reliable high engagement wheelset; The Corvus Big SU! The Big Su’s highlights are the high engagement 6 pawl hubs designed for AK durability laced to thier own ultralight (540g) 80mm rims. We also offer the HED BHAD wheelset which is the lightest aluminum wheel on the market! The stock Why Cycle’s build offers the Sun Ringle Mule Fut which is a heavier and less reliable entry level wheelset.
  • Why Cycles uses a Bontrager Fork. We use a higer quality Enve Fork! Or the Manitou Mastodon Pro (2024 version) Suspension Fork!
  •  To go along with the long standing durability of the Why Cycles Ti frame, we have assembled components that match that reliability and quality versus the stock build
  •  Like with most models that we carry we offer multiple tire options; both studdable and non-studdable

Other Build Options:

  • Higher end drivetrains and components potentially available upon request!
  • Total custom builds also available to create your ultimate dream machine. This can include coloured ONYX hubs, coloured wolf tooth bling kits, plus more!

Call us for more details on these upgrades and build options!

Shipping

We ship on Mondays, Wednesdays and Fridays.

If we receive your order by noon on these days we can often get your order out same day  or it will go out the next shipping day with the method you have selected. 

We will always try to ship orders out as quickly as possible.

Domestic orders are shipped Canada Post, Loomis or Purolator depending on the item and your selected service and when your order ships you will receive tracking details via email address provided.

If you require an alternate shipping option or for Remote Area orders please contact us prior to placing your order and we will provide a shipping quote.

Returns

Our policy is you may return an item(s) which are unused and in original packaging up to 15 days after receiving them.

This does not include Clearance items which are final sale. Please make your return request through email (eh@fatbikes.ca) noting the item (s) you would like to return. 

Those items must be in their original packaging and in the very condition you received them.

Please note that we have a ‘Restocking Fee’ of 15% for any and all products returned if you had received free shipping with your order. If your original shipping and handling was a higher rate than 15% of the purchase that will be the charge instead.

So please insure proper compatibility before proceeding with an order.  You are responsible for the full cost of shipping your return back to us.

There may be certain items that are Non-Refundable and cannot be returned such as various wearables/underwear

All Clearance items are Final Sale. Weekly Deals + Specials offer the same return and exchange policy as regular items.

Size: Medium
Ready For Winter in Canada!

Key Features

Learn more about this awesome bike!

Fork Options

The Why Cycles Big Iron V2 offers several front fork options to suit different riding preferences: ENVE Carbon Fork: A high-quality carbon fork known for its lightweight and responsive characteristics, enhancing the bike's agility. Manitou Mastodon Suspension Fork: A suspension fork providing additional comfort and control on rough terrains, ideal for riders seeking a more cushioned ride.

Frame Construction

Frame Material: Constructed from Grade 9 3/2.5 titanium tubing with CNC-machined 6/4 titanium components, offering an optimal balance of stiffness and compliance.

Universal Derailleur Hanger (UDH)

Equipped with SRAM's UDH for enhanced drivetrain compatibility and easier replacement.

Wheel and Tire Compatibility

Accommodates multiple wheel sizes, including 27.5" x 4.5", 26" x 5.0", and 29" x 3.0" tires, providing flexibility for different riding conditions.

Why Cycles

DETAILS THROUGHOUT

Named after the the famous Marty Robbins song, the Big Iron is designed to be a tool to get the job done. Whether its a short weekend jaunt on the local groomed single track or an epic 1100 mile journey across Alaska, the modern geometry, stiff-yet-supple titanium frame, and lifetime warranty make this a bike you’ll be proud to take anywhere that requires big tires.

Build Kit Specs

Component Specification
Fork Enve Carbon
Headset Cane Creek
Bottom Bracket Sram Dub 100mm
Crankset Sram GX Eagle Fat 5
Stem Raceface Aeffect
Handlebar Diety 35mm
Seatpost Raceface Ride
Saddle WTB Volt
Grips Raceface
Shifter Sram GX Eagle
Cable Housing Jagwire Shift
Derailleur Sram GX Eagle
Chain Sram GX Eagle
Cassette Sram GX Eagle
Brakes Sram G2R
Rotors SRAM Centerline 160mmF/180mmR
Wheelset Corvus Big SU 27.5/XD Driver
Tires Terrene Cake Eater 27.5×4.5
Bottom Bracket SRAM DUB BSA
Grips Lizard Skins Charger Evo Grip Black
Seat Collar Revel 34.9mm Dia
**Specifications subject to change without notice**
Component Specification
Fork Manitou Mastadon Pro
Headset Cane Creek
Bottom Bracket Sram Dub 100mm
Crankset Sram GX Eagle Fat 5
Stem PNW
Handlebar PNW Range 35mm
Seatpost PNW Loam w/ Range Lever
Saddle WTB Volt
Grips Raceface
Shifter Sram GX Eagle
Cable Housing Jagwire Shift
Derailleur Sram GX Eagle
Chain Sram GX Eagle
Cassette Sram GX Eagle
Brakes Sram G2R
Rotors SRAM Centerline 160mmF/180mmR
Wheelset Corvus Big SU 27.5/XD Driver
Tires Terrene Cake Eater 27.5x4.5 or 45N Dillinger 5
**Specifications subject to change without notice**