Logitech G-Series Pedals – Overview

Logitech G-series pedals are simple, strong and highly upgradeable.

Millions of sim racers use them with the G25, G27, G29, G920 and G923 wheels, and many sets remain in use for years.

Their biggest advantage is that you do not need to replace the complete pedal set when something wears out or when you want better performance.

The main components can be repaired, replaced or upgraded.

How Do Logitech Pedals Work?

A standard Logitech pedal set has three pedals:

  • Accelerator
  • Brake
  • Clutch

Each pedal uses a potentiometer to measure pedal movement.

The potentiometer creates an electrical signal which travels through the wiring loom to the steering wheel. The wheel then sends the pedal position to the PC or console.

The basic system is very simple:

Pedal → potentiometer → wiring → steering wheel

That simplicity makes Logitech pedals easy to repair and modify.

What Is Good About Logitech Pedals?

The basic mechanical construction is strong.

The pedal arms, springs and housings can remain perfectly usable long after other parts begin to wear.

The pedals are also easy to take apart, and the accelerator, brake and clutch can be removed individually.

Most importantly, the parts most likely to cause problems can be replaced without replacing the complete pedal set.

The Potentiometers

The original Logitech pedals use rotary potentiometers operated through a small gear mechanism.

Over time, these potentiometers can become contaminated or worn, causing unstable or inaccurate pedal readings.

Typical symptoms include:

  • Flickering pedal input
  • Jumping readings
  • Difficulty reaching 0% or 100%
  • Dead or unstable areas

This does not mean the pedals are finished.

The original potentiometers can be replaced with AXC SIM Potentiometer Upgrade Kits.

Our system replaces the original rotary potentiometer and gears with a linear position sensor operated directly by the pedal.

In simple terms:

Stock: Pedal → gears → potentiometer

AXC SIM: Pedal → position sensor

It is a much simpler and more direct way of measuring pedal movement.

The Wiring Loom

The other main electrical component is the wiring loom.

The original Logitech loom uses relatively thin wires and shared connections between the pedals.

After years of use, wiring can become damaged through movement, pulling, crushing or accidental damage to the pedal cable.

Again, this does not mean the pedals need replacing.

The stock loom can be replaced with an AXC SIM Replacement Wiring Loom.

Our loom uses thicker wiring and gives each pedal its own supply and ground wiring back to a common connection, rather than relying on the original daisy-chain arrangement.

Replacing the loom can restore an old pedal set and provide a reliable electrical starting point.

Improving the Brake

The standard Logitech brake works mainly by measuring how far the pedal moves.

That works, but braking performance can be improved significantly.

AXC SIM TrueBrake changes the way the brake pedal feels and behaves.

Instead of relying mainly on pedal movement, braking becomes much more closely related to how hard you press the pedal.

In practical driving terms, TrueBrake achieves essentially the same objective as a load-cell brake pedal.

You learn to control braking through foot pressure rather than trying to repeat the same pedal position.

That can make it easier to:

  • Brake consistently
  • Judge heavy braking
  • Trail brake
  • Repeat the same braking force lap after lap

TrueBrake does not use a load cell, but the driving principle is very similar.

For many drivers, improving the brake is one of the biggest performance gains available from the Logitech pedals.

Repair, Upgrade, Keep Racing

One of the best things about Logitech pedals is that you can improve the parts that need improving while keeping the rest.

If the potentiometers fail, replace the potentiometers.

If the wiring fails, replace the wiring.

If you want a better brake, upgrade the brake.

You do not necessarily need to replace the entire pedal set.

With the right upgrades, an older set of Logitech pedals can be made more reliable, more consistent and better to drive.

Better braking and more reliable pedal inputs can also help you drive more consistently and ultimately become faster on track.

Better for the Environment

Repairing and upgrading also makes environmental sense.

A complete pedal set contains a large amount of metal, plastic, wiring and mechanical parts that may still be perfectly usable.

Throwing all of that away because of one worn potentiometer or damaged wire creates unnecessary waste.

Replacing the faulty component keeps the rest of the pedal set in service.

That is good for your wallet and better for the environment.

So, Should You Replace Your Logitech Pedals?

Not necessarily.

The basic Logitech pedal platform is strong, simple and easy to work on.

Its main weaknesses are well understood — and they can be fixed.

With upgraded potentiometers, a replacement wiring loom and a brake upgrade such as TrueBrake, Logitech pedals can remain a very capable sim-racing pedal set for many years.

Repair what is worn. Upgrade what can be improved. Keep racing.