921 / 1579
HELMETS
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ACCESSORIES
TRACKS /STUDS /
SPROCKETS
REAR
SUSPENSION
SHOCKS
FRONT
SUSPENSION
SKIS /RUNNERS
BRAKES
CHAIN /
SPROCKETS
BELTS
CLUTCHING
CHEMICALS
TOOLS /
FASTENERS
PROMOTIONAL
REFERENCE
INDEX
x
X X
X
X
921
• Fits all late models (except Polaris Xtra-10 and Yamaha)
• Offers an infinite range of track pitch and length options
• Inner support plates offer clean look and added strength
For 8" wheel options See Pages 986-987HOWTO CALCULATE REQUIRED EXTENSION
Determine new track correct length:
Example 154 track is 54 pitches x 2.86” pitch = 154.44”
Determine existing track correct length: Example 144 track is 57 pitches x 2.52” pitch = 143.64”
Subtract existing track correct length from new track correct length. Difference = 10.80”
The correct difference must be divided by 2 to determine extension length
/ 2
The required axle extension length is
=
5.40”
NOTE: If drive sprocket diameter is reduced, more axle extension will be required. The final
factor that may require more or less axle extension is the amount of shrinkage or stretch
in the new track and the existing track.
SLIDE RAIL EXTENSIONS
For use with RMT Slide Rail Extensions
Offset
2 Wheel
List
3 & 4 Wheel
List
Straight Axle for TKI Extensions cut for 8” Wheels
0”
53-01010* $116.95
Converts Extensions cut for 8” wheels to 9”
1/2”
53-01012* 116.95 53-01016* $197.95
Converts Extensions cut for 8” wheels to 10”
1”
53-01014* 116.95 53-01018*
197.95
Optional inserts for Arctic ProClimb and Yamaha Viper rail slots Sold Pr
53-02991 19.95
Optional inserts for Yamaha (except Viper) rail slots
Sold Pr
53-02993 19.95 53-02998
$19.95
AXLES
for
TKI SLIDE RAIL EXTENSIONS
For wheel options See Pages 986-987
3 & 4 Wheel Offset
2 Wheel Offset
Fits all late models (EXCEPT: Polaris Xtra-10 &Yamaha)
Axle Extension
Range
Correct Track Length
Extension Range
Slide Rail Extensions
For 8” Rear Wheels
List
2-1/2” to 4-1/2”
5” to 9”
53-01903
$154.95
pr
4-1/2” to 6-1/2”
9” to 13”
53-01905
154.95
pr
6-1/2” to 8-1/2”
13” to 17”
53-01907
154.95
pr
8-1/2” to 11”
17” to 22”
53-01910
154.95
pr
ARCTIC CAT 2012-14 PROCLIMB M, HCR
4-1/2”
153-162”
53-01959
$154.95
pr
6”
162-174”
53-01960
154.95
pr
POLARIS 2011-14 PRO RMK, ASSAULT
4-1/4”
155-163”
53-01970
$154.95
pr
4-1/2”
162-174”
53-01971
154.95
pr
2 Wheel straight
* Comes with inserts for Polaris, Ski-Doo and older Arctic Cat. For Arctic ProClimb and Yamaha order
inserts separately
TUNNEL / RAIL ACCESSORIES