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fat bikes

$1,599.00
$1,849.00
14% Off
The All-Around Fat Bike
Wednesday sits in the middle of our Trail category, but don't let that fool you into thinking that's its only use. With Wednesday, we borrowed elements from some of our Trail and Touring models to create a versatile fat tire trail bike that can truly handle anything you want to attempt.
If you do an equal amount of off-road touring as you do hitting trails, Wednesday's ability to play both parts equally will suit you well. Or, if you're looking for a fat bike and don't need the fattest tires on the market, Wednesday's 26 x 4.6" tire clearance is just the ticket.
- Modern mountain standards: stealth dropper post routing, 44mm headtube, suspension correction, front and rear thru-axles
- Full suite of useful braze-ons: front and rear racks, multiple sets of three-pack mounts, fenders
- Full-forward, short chainstay position: 26 x 3.8" tires on 80mm rims; full-rearward, longer chainstay position: 26 x 4.6" tires on an 80mm rim
Specs:
- Rear Dropout Configuration: Horizontal slotted with optional vertical dumpout
- Rear Hub Spacing: 12 x 177mm (Surly axle included); 10 x 170mm with Surly 10/12 Adapter Washers (not included)
- Front Hub Spacing: 15 x 150mm (Surly axle included)
- Rear Brake: Disc - 51mm I.S. (203mm max rotor)
- Front Brake: Disc - 51mm I.S. (203mm max rotor)
- Head Tube: Ø44mm
- Steerer Tube: Ø28.6mm (1-1/8")
- Crown Race: Ø30mm (1-1/8")
- Stock Headset Upper (S.H.I.S.): ZS44/28.6
- Stock Headset Lower (S.H.I.S.): EC44/30
- Front Derailleur (Clamp): High direct mount top-pull (Ø34.9mm)
- Max Chainring (CL): 1x (Fat bike 170): 34T; 2x (Fat bike 170): 26/38T; 2x (Surly OD): 22/36T
- Tire Clearance Frame: 26 x 4.3" (rear axle position); 26 x 3.8" (front axle position); 29 x 3.0"
- Tire Clearance Fork: 26 x 5.25"; 29 x 3.0"
- Rigid Fork Spec: 468 x 47mm
- Max Suspension Fork Length: 511 x 51mm (Fatbike 100mm)
- Bottle Mounts Frame: 2 Standard (XS - M); 3 Standard (L - XL)
- Bottle Mounts Fork: 2 Three-Pack
- Rack Mounts Frame: Yes (upper and lower threaded)
- Rack Mounts Fork: Yes (upper, lower, and mid-blade threaded)
- Fender Mounts Frame: Yes
- Other Features: Internal dropper post routing compatible

$1,699.00
The Heyday! Advent is a machine made with adventure in mind. 26 x 4.6" tires have no trouble rolling over loose terrain or tracking through overgrown paths. The aluminum frame blends durability and weight savings with stable geometry for roaming far and wide. And Heyday!'s versatility is unmatched: Alternator 2.0 dropouts allow for multiple drivetrain setups; cargo mounts let you load up for a day or a week; your wheel and tire options also include 27.5 fat and 29+. All this, paired with microSHIFT's trusty Advent wide-range 9-speed drivetrain, will remove "unrideable" from your vocabulary.

$2,919.20
$3,649.00
20% Off
Beargrease is our fat tire bike built to go faster than you knew fat tire bikes could go. The super-light frame and fork and the sure-footed rollover of 27.5 x 4.0" wheels and tires cover challenging terrain quickly. Versatile frame and fork mounts let you carry everything you need for the backcountry. Test yourself in a snowy endurance race or pack your camping gear and embark on a long-distance overnight bike trip.

$3,999.00
Beargrease pairs a race-ready carbon frame with the capability of fat tires for the ultimate groomed-trail machine. Its trail geometry, dropper post, and 27.5" wheels grant you confidence in loose corners and descents and make for an all-season ripper. Frame and fork mounts for extra bottles and cargo make it easier to gear up for your long days out or even overnighters, and the high-performance XT/SLX drivetrain is the icing on the cake. For light-and-quick confidence on any terrain, Beargrease is one of the best carbon fat-tire bikes out there.

$3,195.00
Voytek changes the fat bike game. It is fast, lightweight, agile, and can handle even the sharpest turns of your local singletrack with ease. Think of it as a mountain bike that can fit fat tires with adjustable geometry. We paired a narrow pedal stance—aka Q factor—with aggressive XC race geometry to build a fat bike that can intuitively handle snowy trails like your mountain bike can handle summer singletrack without sacrificing ride quality. When the weather turns and the snow turns to dirt, swap out the 26" fat wheelset for a 29" MTB wheelset to keep the party going all year.
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Note: Otso is a close partner whose warehouse is located just a few miles from ACF. We show Otso's bike catalog as in-store because we can get bikes and frames same or next day. Please call to ensure we have the size you are looking for built and in-store before stopping by for a test ride.
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THE Q-FACTOR IS THE KEY
The Voytek has the narrowest Q-factor of any fat bike in the world at 183mm. With a narrow Q-factor, your weight is closer to the centerline of the bike. This is especially important when cornering because it allows for tight, responsive control—the wider Q-factor found on most fat bikes spreads out your pedals and creates a floppy, unstable feel. The Voytek frame was designed around an 83mm bottom bracket, where most fat bikes have a bottom bracket north of the 100-110mm range. With the Voytek, you don't need to compromise agile handling to ride up to 4.6" tires.
ONE BIKE, THREE WHEELBASE LENGTHS
Our Tuning Chip rear dropout is at the heart of the versatile Voytek. With a quick change in positions, the wheelbase of the Voytek can be extended or shortened by up to 20mm, which also changes bottom bracket height by up to 4mm and head tube angle by +/- 0.5º. In the forward position, you've got an aggressive, responsive Voytek for your next race. In the rear position, you've got that same intuitive handling but with added stability to make it easier to ride in deep snow or adverse terrain. In the middle, well, that's the best of both worlds.
PLUS OR FAT? FAT OR PLUS?
We're internally divided here as to whether the Voytek is a plus bike that can handle fat tires or if the Voytek is a fat bike that has the handling worthy of a plus bike. When the trails are packed with snow, we're riding 4" tires. When spring comes and the trails turn to dirt, we swap out tires and ride 29" plus until winter returns. The versatility of the Voytek blurs the lines of plus and fat, keeping the party going all year long.
MODERN GEOMETRY
Voytek's longer top tube, short chainstays—the shortest in the world for a fat bike—and slightly slacker head tube angle mean more speed and more fun.
SUSPENSION CORRECT
Voytek's suspension-corrected geometry is compatible with an Otso carbon rigid fork or up to 120 mm travel suspension fork.
COMPETITOR TESTED, ISO APPROVED
Voytek's patent-pending frame design exceeds all ISO frame safety standards and has been proven over thousands of miles of test riding, including the legendary Iditarod Invitational and Arrowhead 135 competitions.
DROPPER COMPATIBLE
The EPS molded carbon frame of the Voytek was designed to accept internally routed dropper seat posts.

$4,280.00
We've partnered with our friends at The Radavist to bring this collaboration Voytek to life. It has all of the same features as the existing Voytek, but with this special colorway. It's ready for snowy adventures and desert touring alike. A portion of all proceeds will be donated to Protect Our Winters.
When describing a fat bike, you wouldn’t typically describe it as agile. That’s where the Voytek is different. We paired a narrow pedal stance—aka Q factor—with aggressive XC race geometry to build a fat bike that can intuitively handle snowy trails like your mountain bike can handle summer singletrack.
*****************************************************************
Note: Otso is a close partner whose warehouse is located just a few miles from ACF. We show Otso's bike catalog as in-store because we can get bikes and frames same or next day. Please call to ensure we have the size you are looking for built and in-store before stopping by for a test ride.
*****************************************************************
THE Q-FACTOR IS THE KEY
The Voytek has the narrowest Q-factor of any fat bike in the world at 183mm. With a narrow Q-factor, your weight is closer to the centerline of the bike. This is especially important when cornering because it allows for tight, responsive control—the wider Q-factor found on most fat bikes spreads out your pedals and creates a floppy, unstable feel. The frame was designed around an 83mm bottom bracket, where most fat bikes have a bottom bracket north of the 100-110mm range. With the Voytek, you don’t need to compromise agile handling to ride up to 4.6” tires.
ONE BIKE,
THREE WHEELBASE LENGTHS
Our Tuning Chip rear dropout is at the heart of the versatile Voytek. With a quick change in positions, the wheelbase of the Voytek can be extended or shortened by up to 20mm, which also changes bottom bracket height by up to 4mm. In the forward position, you’ve got an aggressive, responsive Voytek for your next race. In the rear position, you’ve got that same intuitive handling but with added stability to make it easier to ride in deep snow or adverse terrain. In the middle, well, that’s the best of both worlds.
PLUS OR FAT? FAT OR PLUS?
We’re internally divided here as to whether the Voytek is a plus bike that can handle fat tires or if the Voytek is a fat bike that has the handling worthy of a plus bike. When the trails are packed with snow, we’re riding 4” tires. When spring comes and the trails turn to dirt, we swap out tires and ride plus until winter returns. The versatility of the Voytek blurs the lines of plus and fat, keeping the party going all year long.
WHEELIES GALORE!
The Voytek can run a wide range of wheel sizes: 27.5" or 29" plus MTB tires to 26" x 4.6" fat tires.
MODERN GEOMETRY
Voytek's longer top tube, short chainstays – the shortest in the world for a fat bike – and slightly slacker head tube angle mean more speed and more fun.
SUSPENSION CORRECT
Voytek's suspension-corrected geometry is compatible with an Otso™ carbon rigid fork or up to 120 mm travel suspension fork.
COMPETITOR-TESTED, ISO APPROVED
Voytek's patent-pending frame design exceeds all ISO frame safety standards and has been proven over thousands of miles of test riding, including the legendary Iditarod Invitational and Arrowhead 135 competitions.
DROPPER COMPATIBLE
The EPS molded carbon frame of the Voytek was designed to accept internally routed dropper seat posts.

$8,687.70 - $9,431.00
$9,653.00 - $10,478.00
Up to 15% Off
You’re not hanging up your wheels when the snow flies and you love the solitude of quiet winter adventures. This overlanding machine is built for you.
Our 20+ year history of building fat bikes all comes together in a modern take in the Forager. The Forager is built to hold a 27.5 x 4.5’’ tire with plenty of room for icicles. Built with current fat bike standards such as 197 x 12 rear spacing, 120mm bottom bracket shell and 150 x 15 fork, this set up will stand the test of time. At the heart of the Forager is a proprietary double butted top and down tube in the largest diameters we’ve built from, giving us the strongest, stiffest and best tracking fat bike we have ever made. The Forager is not limited to just the cold surfaces, with bike packing and bike adventuring fitting right into its oversized wheel house. We’ve taken everything we’ve learned from building fat bikes for over 20 years and combined all of that knowledge into our most advanced offering in this category.
The bottom line: Fresh snow, hard pack snow and deep winter adventures are at your beckon call. No surface should be left off the list with this beast of a bike.
***The large, Stanley finished Forager has been on a few test rides. Please confirm you're ok with that before ordering.
FRAMESET SPECS
- Head Tube: 44mm
- Bottom Bracket: 120mm Threaded
- Seatpost: 30.9mm
- Thru-Axle Rear End Spacing: 197 x 12
- Post-Mount Disc: 160 or 180 rotor
- Max Tire: 27.5 x 4.5"
- Water Bottle Locations: 2 (small has 1)
- Ring Capacity (single only): 30T
- Derailleur hanger: Replaceable
- Fork: Enve Fat Fork 150 x 15
- Chris King Matte Black headset
- Matte Black seat tube collar
- 3 Moots Ti Spacers 5mm, 10mm, 20mm
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Angry Catfish Bicycle is one of the largest Moots dealers in the country. We have many Foragers and other Moots coming in. Text, call, or email if you're considering a Moots. We may have the bike you're looking for coming and would love to help.
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