Our pick: Our decision in picking a
favorite was relatively easy, because
these bikes are very purpose-driven
designs. They are made for riding in
attack mode, not cruising along a
smooth trail. Apply the same evaluation
to the standard Stumpjumper and there
is a good chance there would be a
DOES AUTOSAG WORK?
Autosag takes the guesswork out of setting the rear suspension
on both bikes. Fill the shock to the recommended 300 psi
through the black-capped Schrader valve, not the one with the
red cap (that is for releasing pressure only). Yes, that 300 psi sounds
crazy, but it works. Going to a lower number might not achieve the
desired results. Now, sit on the bike wearing your riding gear.
Depress the valve beneath the red Autosag cap and remain still until
the airflow stops leaking out. Cycle the suspension, set the rebound
to your preference and go ride.
We realize some riders don’t like to be told what to do.
Autosag doesn’t force you to do anything. If you want more
sag, release air from the red-capped valve. If you want less
sag, add some air. The Autosag-equipped shock is totally
The shock’s three damping circuits (CTD, or Climb,
Trail and Descend) mean ultra firm (C), pedaling platform (T) and wide open (D). It works differently for
HOW ABOUT SETTING THE FORKS?
The Fox forks on these bikes don’t have the Autosag
feature, so you are back to measuring sag the old way.
We started with 20-percent sag on both bikes and it
worked well. Both forks come with Fox’s TALAS (Travel
Adjustable Linear Air Spring), which reduces fork trav-
el with the twist of a lever. The TALAS worked per-
fectly on both bikes, and removing the Schrader valve
cap is a lot easier in the slammed mode.
We can say now that this was the only time we
employed the feature. On the trail, and during all our
testing, no crewer ever felt the need or desire to reduce
the fork’s travel.
About to blast: The 29er was not fazed
by rocks this size, and once through the
corner, nobody could believe how fast
this bike would build speed.