2010-2012 Arctic Cat 450 H-1 models, 2011-2012 Arctic Cat 425 4X4, 2011-2012 Kymco MXU 450. Stock and oversized tires.
Better bottom and mid performance. This is a simple, effective clutch re-calibration kit that helps the cvt system respond better to load conditions, such as soft terrain and climbing. There are adjustments and settings in the instructions to set it up for stock or oversized tires.

03 & up, oversized tires
Our heavier secondary
spring has already
proven to prolong belt life and
help with bottom end response
on these models. Now, in addition
to that we have assembled
a complete clutch kit including
new rollers for the primary
clutch. This complete clutch recalibration helps recover power
lost from oversize mud tires.

(New version with complete roller assemblies)
A new kit that contains complete drop in roller assemblies. This
kit is designed to re-calibrate the shift pattern to help recover
some of the losses from installing
oversized tires. Bottom
and midrange acceleration and
performance are greatly improved.
Also aids in performance
when operating at higher
elevations. This kit can be used
with stock or oversized tires,
however, when used with stock
tires at low elevation it can
cause a slight loss of top speed.

Stock & oversized tires 27-28"
This kit combines our popular
plain/purple secondary clutch spring
with the blue primary. This cost-effective
combination has proven most effective for
the 650 V twin. Stock flyweights are best
for most applications on this model and
we prefer not to sell you more than what you need. The engagement
speed of this kit is only very slightly more than stock, so it
maintains excellent characteristics for slow speed maneuvering.
Primary clutch puller Required for proper belt removal on V
twin models. The Dalton Kawasaki puller is part # DCP-G. (See
clutch tuning)
Suggested list price $41.00 CAD / $41.00 USD
The DPSS-AQ (Aqua) secondary spring
is popular with the 28" and bigger tires for
mud applications. For more case-specific
info on Kawasaki/ Arctic V-twin models,
see the Kawasaki secondary springs
chart.
Suggested list price
$29.95 CAD / $29.95 USD
Extreme Mud Tires
This optional primary spring has slightly
higher engagement than the Blue spring in
the DKA6570MT kit, but also has stronger
compressed load rating.Works well with
some of the new extreme mud tires in 28"
and up. Using this spring with smaller tires
may result in a slight loss of speed. |

4x4, 06 & up, 1
cyl. only.
Suzuki engine model
only
Not for H-1 Arctic engine models
Improved acceleration
and backshifting and
maintains more consistent RPM
under load conditions. A new
secondary spring and roller
weights developed specifically
for this model.This clutch recalibration
kit works well to help
recover the dramatic losses
resulting from oversized tires on
this model. It can, however, be
used with stock tire sizes as well
for situations requiring better
low speed/midrange response and performance (e.g: mud/work).
Use with stock tires may result in a minimal loss of top speed.
There is no increase in engagement (stall) speed rpm so this kit
still works well for low speed maneuverability like rock crawling,
etc. It also helps restore power loss from higher elevations.

Suzuki engine model only
Not for H-1 Arctic engine models
This new version of our proven DSK700EF kit now
comes with "complete roller assemblies." Complete rollers means
quicker, easier installation,and a new wear surface at the time of
installation. Improved acceleration,
backshifting and throttle
response. More consistant rpm
under road conditions.Can be
used with stock or oversized
tires.
*for extreme mud tires,eg
29.5" and bigger Kit # DSK750
HAC is recommended -Also fits
05-07 Suzuki King Quad
700EFI,06-07 Arctic 700 EFI
4x4 (Suzuki engine model
ONLY)
Suggested list price
$169 CAD / $169 USD
A kit designed
for increased acceleration and
backshifting when using big
mud tires. Also aids in recovery
of power lost at high elevations
(above 4000 ft) with moderate
typical trail tires. Not for use
with stock tires at low elevation.
*
For stock to 28" tires at low elevation use kit # DSK750 C.
Also fits 05-07 Suzuki King Quad 700EFI 4x4,06-07' Arctic Cat
700EFI 4x4 (Suzuki engine model ONLY).
Suggested list price
$109 CAD / $109 USD
08-09 Arctic Cat Thundercat H-2 4x4, 1000 H-2 Cruiser
Oversized tires/High elevation
Arctic’s flagship H-2 4x4 model is a powerhouse in stock form. This simple clutch re-calibration helps improve the acceleration even more. The new set of rollers provided are complete "drop in" assemblies for quick installation, complete with new composite outer housings. Although mostly intended ,and a great improvement to help recover losses from bigger tires or high elevation, this simple kit also helps with quicker acceleration even with stock tires. When used with stock tires only a very slight top end speed loss was observed. Great bang for the buck.
- complete roller assemblies
- improved acceleration and mud performance
- instructions provided for secondary settings with optional terrain/tire sizes.
|

The Prowler XT side by side
utility vehicle was designed for
a very wide variety of uses. The
stock tires are 26" radials, but a
very light weight style of tire,
and and the fronts are still 8"
wide like many of the common
25" tires on ATV's. Our testing
showed that given the intended
use, the stock clutching was
well calibrated for these tires. The addition of oversized tires definitely hurt the performance of the Prowler. It is common
and getting well-known that vehicles with oversized tires can never be as quick as
ones with lighter/smaller stock tires. Many, however, need the better mud performance
and ground clearance offered by aggressive big wheel kits. The use of this cost effective
new roller kit helps restore some of that lost rpm and performance. Also helps with
high altitude operation. Note: For use with oversize tires only. Not for use with stock
tires at low elevations (0-3000') This kit can be used for stock or oversized tires above
3000' elevation. |
Suggested list price
$77.50 CAD / $77.50 USD
'06 only Prowler XT- oversized tires
For use only on the '06 model with older (compression
spring ) secondary clutch.
Suggested list price
$109.00 CAD / $109.00 USD
'07-'08 Prowler XT -oversized tires
For '07 & newer Prowler models (with new torsion
style secondary clutch) use part # DA-650 HC
for large tires and high altitude applications. |