Thrustmaster RACELINE PEDALS III Mode D'emploi page 22

8. Compress the brake pedal spring using the support,
to insert the retaining rod into the slots in the pedal
set base.
To adjust the brake pedal's resistance, you can place
the spring retaining rod in different positions.
For more information on adjusting the brake pedal's
resistance, please read the
pedal's resistance
section.
21
Modifying the brake