hydraulic disc brakes front and rear
slow this Polaris down.
The Ace 900 SP’s standard electronic
power steering makes piloting the
machine smooth and easy. It runs on
cast-aluminum wheels with 25x8-12
front tires and 25x10-12 rear tires that
provide good traction in all types of
terrain. To help tackle rocky terrain,
the Ace has a ground clearance of
10 inches and a wheelbase of 61. 5
Polaris’ Ace 900 SP has two exterior
cargo locations, along with a cup
holder in the cockpit. The front storage
box doubles as a cargo rack that can
hold up to 120 pounds, while the rear
bed can hold another 240 pounds.
This Ace can tow up to 1500 pounds
with the standard 1.25-inch rear hitch
receiver, and it has a 5.25-gallon gas
tank that helps get the job done.
Getting in and out of the 900 is easy.
It has half doors with easy-to-operate
latches, and the floor of the Ace is low,
so climbing in and out of the machine
is practically effortless. The steering
wheel is tilt adjustable and the seat
can be easily adjusted to suit the
driver’s comfort as well.
For those of us who have
experienced a Honda Odyssey or Pilot,
we know how fun a compact single-
seat machine is, but the Ace exceeds
those expectations. Not only does
the Polaris have better suspension,
it also has 4x4 capabilities that the
old Hondas never had. The 900 SP
utilizes a close-ratio AWD system that
engages the front wheels for more
traction when needed and reverts
back to 2WD when the computer
senses it doesn’t need more traction.
We thought this would hinder the
Ace’s rock-crawling or hill-climbing
abilities, but it actually performs
quite well in both situations. When
descending in low gear the machine
free-wheels when the rpm drops
too low. You must keep your foot
tapping the gas occasionally to retain
appreciable engine braking.
When it comes to power the Ace 570
had enough to have fun and go most
anywhere you can take the single-seat UTV. The 900 SP has almost too
much power for its suspension. If you
step on the skinny pedal hard enough
from a standstill, the Polaris will pull a
wheelie; however, you could burn up
a CVT easily by doing that.
In turns the Ace’s new stabilizer
bars in the suspension help keep
the machine stable and cut down
on body roll, but that doesn’t mean
it isn’t easy to tip over if you drive it
beyond its capabilities. One of the
design parameters was to keep the
Ace narrow enough for 50-inch trails.
The suspension is bouncy in the front
end, while the rear feels smooth
and stable. The Ace series would
greatly benefit from dual-A-arm-type
suspension in the front end with 2
more inches of wheel travel.
The Polaris Ace 900 SP is the
ultimate single-seat UTV. It has
massive amounts of power in a small
and nimble frame. The suspension
and steering provide stable feedback.
While this machine isn’t one for
Like the other models in the Ace series, the 900 SP doesn’t have an Electronic
Braking System. On descents the machine will start coasting instead of slowing you
down. The brakes work very well, though.
The shocks on the independent rear suspension have been upgraded with heavier-rated springs to handle the increased weight of the bigger engine over the Ace 570.
The 900 SP has a 875cc, twin-cylinder,
four-stroke engine that is liquid-cooled
and has dual-overhead-cam shafts per