Polaris Timbersled ST 120 RAW 2019 Owner's Manual page 31

REAR TRACK SHOCK SPRING SETTINGS
Always perform shock spring preload adjustments with the weight of the vehicle
removed from the shock and with the shock at full extension.
If adjustments to the factory-installed springs are not sufficient for riders over
300 lbs. (136 kg), optional stiffer springs are available. Your Timbersled dealer
can assist.
FACTORY SPRING
Ryde FX
FOX Zero Pro
FOX QS3
TSS SHOCK TUNING
The TSS suspension system is intended to work in harmony with the in track
rear suspension that create a dual rear suspension feel that is unique to a
Timbersled snow bike. It is not intended to have a soft squishy feel like the stock
motorcycle rear suspension. It is important to not try and tune it to feel this way.
For maximum suspension performance follow the tuning instructions.
The TSS shock is preset from the factory with 260 psi. This is tuned best for a
150 lbs. to 200 lbs. rider. Your kit includes a 300 psi Fox Float air pump to adjust
the spring rate and preload of the TSS shock. Your shock will have a sticker on it
with the air pressure tuning parameters and recommendations to best fit your
body weight.
Rider Weight (lbs)
Minimum
Factory
Maximum
To tune the TSS shock, do the following:
1. Take the weight off the shock by lifting the bike from under the engine or
tipping it on its side.
2. Remove the silver valve cap.
MAXIMUM
INSTALLED LENGTH
N/A
7–7/8"
7–7/8"
Suggested TSS Pressures
THE PERFECT FIT
MINIMUM INSTALLED
LENGTH
N/A
7–9/16"
7–9/16"
PSI
200
260
400
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