TVS RAIDER Owner's Manual page 86

REAR SHOCK ABSORBERS
TVS Raider 125 is provided with 5 step adjustable,
gas charged, hydraulic shock absorbers to meet
different road and load. There are 5 notches for
adjusting spring load.
If the spring is adjusted to the minimum notch, then
the shock absorber will be softer which is good for
light loads. If the spring is adjusted to maximum
notch, then it will be stiffer which is good for heavy
loads.
Adjust the spring pre-load by shifting the adjuster
to the required notch according to the different load
conditions.
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The more you compress the spring, the suspension
becomes more stiff.