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Fat Mountain Bike Frame


Item # PIV1WW0

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Item # PIV1WW0

Why We Like the LES Fat Mountain Bike Frame

When the snow is falling and you've hesitantly hung up your trail beast for the year, don't fret the coat of white covering the ground, instead, give your Pivot LES Fat a good once-over and hit the trails with the best of the fatties. The Pivot LES Fat lets you steamroll over the snow into the wild white beyond where the trails are empty of other souls, shy of lynxes, moose, and foxes, embarking on wintertime adventures far from the ski resorts and deep into the woods.

The LES Fat is a welcome change from the cumbersome and heavy fat bikes of yesteryear. Instead of being built like a tank, the LES Fat uses Pivot's hollow-core molding process to create a lighter, stiffer, and stronger version of the fatties we usually see on the trails. This artfully-mastered carbon fiber layup allows for massive weight shedding that's only rivaled by its everlasting durability, backed by a 10-year warranty to ensure you'll have many seasons of riding after the so-called riding season has ended.

Since one of the best features of fatbiking is the ability to feel limitless in different riding conditions, its critical for the bike to also be limitless in its compatibility, which is why the rear triangle features the Pivot Swinger II dropout system that lets the frame accommodate a variety of wheel and tire size combinations. You can choose a shorter chainstay length with a smaller setup to experience a playful ride, or a longer chainstay for stability when the snow is sloppy, or you're loaded up with extra weight for a winter bike-packing extravaganza. The front end also comes with adjustability, with two lower-headset options, enabling you to run either a 29+ wheel and rigid fork, or Manitou Mastodon, and an 18-millimeter cup that allows you to run 27.5 with 3.8in lofty hoops, or 26-inch wheels with beefy 4.8-inch tires. The frame comes packaged with a Race Face Turbine crankset and bottom bracket, so there's no need for you to search for a fatbike-compatible crankset as it's already included.

  • A versatile, 4-season hardtail for winter riding and beyond
  • Pivot's renowned hollow-core carbon is second to none
  • Works with 26 and 27.5 Fat, 27.5+, 29er, and 29+ wheels/tires
  • Compatible with suspension forks from 90 - 120mm travel
  • Narrower Q-factor is friendly on your knees
  • Integrated rear rack mounts for bikepacking and touring
  • Three water-bottle mounts for extra water and storage
  • Includes Race Face Turbine crankset and Race Face bottom bracket

Tech Specs
Frame Materialcarbon
Wheel Size26 Fat, 27.5+, 27.5 Fat, 29in, 29+
Fork Travel[recommended] 90 - 120mm
Head Tube Diameter1-1/8 - 1-1/2in tapered
Headset IncludedPivot Precision Sealed Cartridge
Bottom Bracket TypePressfit 132mm
Cable Routinginternal
Front Derailleur Mountbraze-on
Derailleur PullShimano e-type side-swing
Brake Typepost-mount 160mm
Seatpost Diameter30.9mm
Seat Collar34.9mm
Front Axle15 x 150mm
Rear Axle12 x 197mm
DropoutsSwinger II (allows singlespeed and geared drivetrains)
Recommended Usemud/sand/snow
Manufacturer Warranty10 years

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Actual weights are measured in-house by the Competitive Cyclist team.

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Are builds available for this bike?

Hi Hart! While we may not have package builds for this bike, we can put together a custom build that would suit you. Contact me or any other Gearhead and we would love to help!