The Walker Evans shocks that come
stock on the RZR are good, but at the
factory, they offer some better components. We had them install bigger rear
shafts, a stainless steel front shaft and
better valving. With this service, the
shocks worked amazingly. The valving
and labor will set you back about $400.
This is the helix that is found in the secondary clutch, the one mounted to the
transmission. It controls engine braking. We tried several setups from Dirty
Dawg and Sparks Racing and settled
on a sand helix, which has an even narrower groove than these two.
One thing we don’t like about Polaris machines is that most
of them come with paper air filters that cannot be cleaned.
For this race RZR, we used a washable $99 K&N filter that
gets cleaned and re-oiled every race.
One of the keys to belt life is to clean every new belt with
warm water and a little soap to get rid of the oils used in
the production process. You also want to clean the clutch
sheaves with alcohol and a green Scotch-Brite before any
race or long ride.
Instead of carrying the weight of a
spare tire, we mounted this small CO2
bottle from Powertank and tire plugs
preloaded into the insertion tool in the
glove box. Fortunately, we only had to
plug slow leaks after the race.
We had champion rock racer Nick
Nelson build us a lightweight pre-run-ner-style bumper to hold our Vision X
LED-light Cannons. To actually have a
bumper you can use, they have to stick
out almost a foot in front of the grill.