TrueDrive is the reason many Simucube owners stay Simucube owners. It gives you enough control to make the wheel feel exactly the way you want, and it also gives you enough rope to confuse yourself.
This guide is a practical “what does this actually do?” explanation of the main TrueDrive filters, plus a simple tuning workflow that keeps you progressing instead of endlessly tweaking.
Start in Simple mode, then earn Advanced mode
If you’re new to Simucube, begin with the Simple profile view. It bundles multiple advanced filters into a small set of sliders (for example, smoothness and damping-style feel), which is a safer way to avoid over-tuning.
Once you have a baseline you like, switch to Advanced mode so you can control each effect separately.
The key TrueDrive filters, explained in human terms
| Setting | What it changes | What it feels like | Common mistake |
|---|---|---|---|
| Reconstruction filter | Smooths and extrapolates low update-rate FFB signals | Lower = more raw and fast, higher = smoother with slight compromise in immediacy | Turning it up to hide a flexy rig (fix the rig instead) |
| Slew rate limit | Limits how quickly torque can change | More “rubbery”, less aggressive spikes | Using too much and losing micro detail |
| Torque bandwidth | Low-pass filter that removes high frequencies | Less kerb harshness and grain | Setting too low and creating laggy steering feel |
| Damping | Resists rotation proportional to wheel speed | Stability, less oscillation, calmer hands | Over-damping until the wheel feels dead |
| Friction | Constant resistive force regardless of speed | More “mechanical” weight, less lightness | Too high → heavy and tiring in endurance |
| Inertia | Simulates a heavier rotating mass | Smoother transitions and less twitch | Too high → delayed corrections |
| Static force reduction | Reduces static torque after a moment | Power steering feel without killing road detail | Too high → weight transfer feels confusing |
| Ultra low latency | Internal processing adjustment aimed at reducing latency | Can reduce oscillation with less damping | Too much may create resonance in some sims |
A tuning workflow that works (and stops you chasing your tail)
Step 1: Fix the platform before the profile
If your wheel deck or monitor wobbles, you’ll turn up filters to hide it. That’s the slow path. A stiff aluminium profile rig makes a “lower filter” setup possible, which usually feels more realistic.
- Stiff platform for Simucube: SIMGASM Sport (C120) or SIMGASM Pro (C160).
- Solid wheel mount: wheel mount base set + front wheel mount (verify bolt spacing for your mount style).
- Stable screens: freestanding triple monitor stand for “no shake” visuals.
Step 2: Set strength and steering range first
- Pick a comfortable strength that you can hold for a full race distance.
- Match steering range to the sim or use auto rotation/soft lock if available.
Step 3: Stabilise the wheel with the smallest possible dose
If the wheel oscillates on straights, add a little damping first. If it still oscillates, add a touch of friction. If it still feels twitchy, add a small amount of inertia.
Step 4: Smooth only what needs smoothing
Use reconstruction as your main “grain remover”. If kerbs are too sharp, use a small amount of torque bandwidth or a notch filter rather than turning everything into mush.
Baseline “starting point” values you can try
These are not universal “best settings”. They are a safe baseline to begin from on a rigid cockpit. Make one change at a time.
| Use case | Reconstruction | Damping | Friction | Inertia | Slew rate limit | Torque bandwidth |
|---|---|---|---|---|---|---|
| Competitive GT / iRacing style | 2–4 | 8–15% | 0–8% | 0–10% | Off / low | Off / high |
| Comfort endurance baseline | 3–5 | 10–18% | 3–10% | 5–12% | Low | High |
| Rally / rough roads | 3–6 | 10–20% | 0–6% | 0–8% | Low–medium | Medium |
Where SIMGASM helps without being “brand pushy”
TrueDrive can make the wheel feel smoother. A well-designed aluminium profile cockpit makes the wheel feel truer. If you build on a stiff frame, you can run lower filters and still get a calm, realistic steering feel.
Two simple SIMGASM picks
- SIMGASM Club (C80): a strong step up from entry rigs and compatible with almost all hardware.
- SIMGASM Sport (C120): bigger footprint, cleaner routing, and more flexibility for accessories and future upgrades.
Continue reading
- Simucube iRacing settings guide: TrueDrive baselines and in game tuning
- How to avoid force feedback clipping: a practical workflow across sims
- Sim racing latency checklist: reduce input lag, stutters and random disconnects
- Sim racing cable routing guide: service loops, strain relief and clean upgrades
