Simucube wheelbases can feel “telepathic” in iRacing—but only if you set them up correctly. The biggest mistake new owners make is chasing a magic profile without first matching the force scales between TrueDrive and iRacing.
This guide gives you a safe, repeatable approach:
- Set a TrueDrive baseline you can trust
- Match iRacing wheel force to your wheelbase torque
- Use Auto in iRacing to tune per car and avoid clipping
Important safety note
Direct drive wheelbases can generate significant torque. Set conservative limits while you learn, keep your thumbs out of the rim spokes, and make sure your wheelbase is installed rigidly.
Step 1: Mount the wheelbase rigidly
A rigid mount makes the wheel feel cleaner at lower damping. If the mount flexes, you’ll end up adding filters to compensate—and you lose detail.
- Front wheelmount and Wheelmount base set are great for a clean, adjustable direct drive installation.
- Building a high-torque rig? Start at SIMGASM Sport or go all-in with the SIMGASM Pro for a flagship, flex-free platform.
Step 2: Use TrueDrive profiles as intended
TrueDrive supports wheelbase profiles and templates. Don’t reinvent everything. Start from a default template, then make small changes.
TrueDrive baseline profile (starting point)
| Setting | Baseline | Why it matters |
|---|---|---|
| Overall strength | Start conservative, then increase | Safety first. Set torque so it’s strong but controllable. |
| Reconstruction filter | Low (1–2) as a start | Higher values smooth the signal but can hide detail. |
| Damping | Low to medium (e.g., 10%) | Helps with stability and reduces oscillation without killing feel. |
| Friction | Low (e.g., 0–5%) | Adds “weight” and reduces free-spinning, but too much feels dead. |
| Inertia | Low (e.g., 0–10%) | Simulates rim mass. Increase for heavier rims, decrease for light formula rims. |
Why this works: it gives you a stable, clean baseline that preserves detail. Once you trust the baseline, you can tune it for your rim weight, driving style, and the kind of cars you drive.
Step 3: Set iRacing correctly (the part that fixes “clipping”)
iRacing needs to know your wheelbase torque so it can scale forces correctly.
- Enable Force Feedback: on
- Use Linear Mode: on
- Reduce force when parked: on
- Wheel Force: match your wheelbase max output (example: Simucube 2 Pro = 25 Nm)
- Min Force: usually 0 on direct drive (you don’t need it)
The “Auto” button is your friend
After a few clean laps, press Auto in iRacing’s FFB settings. It computes a Max Force/Strength value that aims to avoid clipping for that car. That’s the fastest way to get a correct baseline per car without guessing.
How to tune feel without ruining detail
- Too harsh / spiky: add a little smoothing or damping in TrueDrive, or increase Max Force slightly in iRacing.
- Too light: reduce Max Force (or increase strength) carefully.
- Oscillation on straights: confirm your mount is rigid; then add small damping.
Which SIMGASM rig tier fits Simucube best?
- Hobby (SIMGASM Hobby simulator): a low-cost entry rig that still punches above its price class, great for your first real cockpit.
- Club (SIMGASM Club simulator): 80×40 profile strength and adjustability, ideal for almost any wheelbase and pedal set you’ll find on the market.
- Sport (SIMGASM Sport simulator): longer and wider, stronger and more adjustable wheel mount, plus integrated cable pass-throughs so you can route cables cleanly without clips.
- Pro (SIMGASM Pro simulator): our flagship 160×40 profile rig for extreme forces, motion-ready builds, and maximum adjustability with a flex-free feel.
Any questions? The SIMGASM experts will be happy to help.
