the Ace 900’s acceleration sits
relative to other quick vehicles
because we haven’t had them
together yet, but you can pay a lot
more for a machine and not get
the same grin-inducing rush. The
900 is just 966 pounds dry, so
power to weight and the good job
Polaris did matching the engine
and clutch tuning is why. The
thought of how much more power
is there for the asking is exciting
too. Polaris has offered stock,
reliable versions of the 900 twin
with 88 horsepower, and there’s
more in there. Different fuel and
ignition mapping, and a different
intake and exhaust are all that
separate the 60-horsepower Ace
from the current 75-horsepower
RZR 900. The 10.6:1 compression
ratio and 46mm throttle body size
are the same.
HOW IS THE POWER ON THE TRAIL?
Pure fun. We love the way the
900 gets the message from the
gas pedal. The throttle response
is quick and predictable without
being unruly. The 900’s power
makes more speed simple to access
and tough parts of the trail easy, but
you don’t have to be a throttle-control
artist to have a smooth, relaxed ride if
that’s what you prefer. You can steer
with the throttle when you feel like
having fun or crawl through technical,
ugly obstacles without fighting with
abrupt power delivery. There’s some
serious punch available, the kind of
extra muscle that lets you loft the front
end on some parts of the trail. How
cool is that?!
HOW IS THE SUSPENSION?
It’s very good considering the 900’s
HOW DOES IT HANDLE?
speed and the basic suspension it
has. Honestly, we’re most impressed
that the 900 doesn’t overwhelm its
suspension more often than it does.
This machine is genuinely quick and
that big engine is pretty heavy for a
small vehicle, so finding suspension
settings that work for a wide variety
of speeds and terrains is a tall order,
but Polaris succeeded for the most
part. The ride is on the firm side at
lower speeds, and it’s not as plush
and refined on rocky, rooted trails as
machines with more sophisticated
shocks. The good news is, the
suspension provides the kind of control
and bottoming resistance you need to
enjoy the 900’s engine performance,
which is pretty amazing.
The 900’s handling makes it one of
the most fun UTVs to drive, period.
You won’t want to race any RZR XP
1000s through the whoops with this
thing, but until you feel what it’s like
to drive something this light, with this
much power, with a fairly low stance—
and front and rear sway bars to keep
it cornering flat—you haven’t had all
the fun you can have in a UTV. The
Out back there’s double-A-arm rear suspension with spring preload-adjustable shocks and 9. 5 inches of travel.
The Ace is easy to get in and out of, and the cab and seat are roomy,
even for tall adults. The seat slides to adjust.
With its 48-inch width, the Ace 900 isn’t as goof-proof as wider machines in corners, but its
agility and ability to steer with the throttle make it a blast to drive.