downtube claimed to make the Les Fat lighter, stiffer and
stronger than any other bike in its class. Wheel size is the next
thing that sets the Les Fat apart, as it can fit 26-inch fat tires,
27.5-inch-plus tires or 29-inch-plus tires. Pivot had its hands
full when it set out to build this bike, and the hard work definitely
paid off. Pivot also offers their own carbon fork for those who
would like to ride this bike rigid.
WHICH COMPONENTS STAND OUT?
The most important feature of the Pivot Les Fat is the patented
Swinger II dropout system. These impressive-looking and easy-to-use dropouts are the key to the Les Fat’s versatility. Not only
do these dropouts allow the use of just about any fat or plus-size wheels, they also allow riders the ability to adjust chainstay
lengths. Swapping wheel sizes doesn’t affect the Les Fat’s geometry, because riders can simply slide the rear wheel closer to the
frame for the shortest chainstays possible. These short stays
provide the Les Fat with its uniquely playful and agile feel, normally
unheard of in the fat bike category.
HOW DOES IT PERFORM?
Setting sag: When setting up the Les Fat, it’s important to pay
as much attention to tire pressure as sag. Air pressure on our fat,
4-inch-wide tires worked best around 8 to 9 psi, while our 3-inch-
wide tires needed between 16 and 17 psi. The Bluto’s air pressure
was set to our testers’ recommended rider weight, but low-speed
compression needed to be adjusted differently for each wheel size.
This was most likely due to the amount of compliance each tire
BIKE TEST / PIVOT LES FAT
Stealth routing: Pivot’s Cable
Port system not only offers a
clean and sleek look, it also
protects the Les Fat’s frame
during foul-weather riding.
Wide spacing: The RockShox Bluto fork has a large 150-
millimeter axle allowing clearance for tires as wide as 5 inches.