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Pivot LES Fat Carbon Race XT/SLX 1x Complete Mountain Bike - 2018


Item # PIV0054

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  • Natural Carbon/Blue, S ($3,499.00)
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Item # PIV0054


Send it into the snow.

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 2018 Pivot LES Fat Carbon Race XT/SLX 1x Complete Mountain Bike 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 winter time 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 yester year. 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 a fat biking is the ability to feel limitless in different riding conditions, its critical for the bike to also be limitless in its compatability, 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 Rock Shox Bluto, and an 18-millimeter cup that allows you to run 27.5+ or 26-inch wheels with beefy 4.8-inch tires.

The LES Fat Carbon Race XT/SLX build features cherry-picked components designed to get the best out of your price-to-performance ratio. It uses XT components where it counts the most — the rear derailleur and cassette, and opts for components that allow price-savings where possible to accommodate a budget-minded rider.For the cockpit, Pivot supplies the saddle, while a Race Face handlebar and Phoenix seatpost, stem, and grips keep the controls in check. The LES Fat Race XT/SLX rolls on set of 26-inch Sun Ringle Mulefront 80mm wheels laced to Salsa hubs and wrapped in 4-inch Maxxis Mammoth tires for a smooth ride through the snow.

  • Fat, but light bike for wintry adventures
  • Stiff and light hollow core carbon construction
  • Huge 26 x 4-inch tires for rolling over snow and mud
  • Bluto compatible for a squishy fork up front
  • Cherry picked parts for price-to-performance ride
  • Swinger II Dropout for running a variety of tire sizes

Tech Specs

Frame Material:
carbon fiber
Pivot LES Fat Carbon Disc
Pivot precision sealed bearing
Shimano SLX
Rear Derailleur:
Shimano XT
E-Thirteen TRS 30T
Bottom Bracket:
132mm press-fit
Shimano XT 11-46T
Shimano M615
Brake Type:
hydraulic disc
[rear] 160mm, [front] 180mm
Race Face RIDE Riser
Handlebar Width:
Phoenix Lock On
Phoenix Race
Pivot WTB Vigo Sport
Phoenix Sport Alloy
Sun Ringle Mulefut, 80mm internal
Front Axle:
Rear Axle:
Maxxis Mammoth
Tire Size:
26 x 4in
Recommended Use:
Manufacturer Warranty:
10 year

Geometry Chart



Seat Tube

Effective Top Tube



Stand Over

Head Tube

Head Tube Angle

Seat Tube Angle

Bottom Bracket Height

Bottom Bracket Drop


S 15in 22.9in 23.91in 15.59in 29.72in 4in 69o 72o   12.26in 17.2in 42.99in
M 17in 23.9in 24.47in 16.42in 31.34in 4.6in 69o 72o   12.26in 17.2in 44.04in
L 19in 24.75in 25.07in 17.08in 32.95in 5.25in 69o 72o   12.26in 17.2in 44.93in

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