Moza wheelbases are popular because they offer a clean direct drive feel across multiple price points. But iRacing rewards a correct setup: if your wheel clips or your damping is wrong, the steering becomes heavy and vague instead of precise.
This guide gives you baseline Moza Pit House settings for R5, R9, R12 and R21, plus iRacing in game settings and a workflow to tune without guesswork.
Step 1: match wheel torque to the right cockpit tier
The more torque you run, the more important it is that your wheel mount and cockpit are flex free.
- Moza R5 class (entry DD): SIMGASM Hobby simulator or SIMGASM Club simulator.
- Moza R9 / R12 class: SIMGASM Club simulator is ideal; choose SIMGASM Sport simulator if you want extra adjustability and cleaner cable routing.
- Moza R21 and high torque use: SIMGASM Pro simulator is the best match, especially if you plan motion later.
Pick the right wheel mount style for your ergonomics: front wheel mount for an upright GT position, or bottom wheel mount for compact setups.
Moza Pit House baseline settings (starting points)
These are starting points, not “one true settings”. The goal is a wheel that is stable on straights and detailed in corners.
| Setting | R5 | R9 | R12 | R21 |
|---|---|---|---|---|
| Max torque | 100% | 100% | 100% | 100% |
| Steering angle | 900° | 900° | 900° | 900° |
| Mechanical damper | 10–15% | 8–12% | 8–12% | 6–10% |
| Friction | 6–10% | 4–8% | 4–8% | 2–6% |
| Inertia | 6–10% | 4–8% | 4–8% | 2–6% |
| Speed dependent damping | 10–25% | 10–20% | 10–20% | 8–15% |
| Smoothing | Low | Low | Low | Low |
Why keep max torque at 100%? Because you want wheelbase headroom. You set the actual steering strength in iRacing so you avoid clipping.
iRacing settings: a simple workflow
- Calibrate your wheel and pedals.
- Set iRacing Wheel force to match your wheelbase max torque (R5 ~5 Nm, R9 ~9 Nm, R12 ~12 Nm, R21 ~21 Nm).
- Run iRacing Auto for force feedback strength once.
- If you clip often in fast corners: reduce strength 5–15%.
- If the wheel oscillates on straights: add a bit of mechanical damper (not heavy smoothing).
Common Moza issues and quick fixes
- Feels heavy and “flat”: reduce iRacing strength and keep headroom. Heavy does not mean detailed.
- Wobble on straights: increase damper slightly and check that your wheel mount is solid.
- Kerbs too aggressive: reduce in game effects before adding heavy filters.
Recommended Moza hardware on SIMGASM
- Moza R5 bundle
- Moza R9 wheelbase
- Moza R12 wheelbase
- Moza R21 wheelbase
- Moza CRP2 load cell pedals
- Moza mBooster active pedal
Recommended SIMGASM gear
- SIMGASM Club simulator (best match for R9/R12 class)
- SIMGASM Pro simulator (best match for R21 class)
- Front wheel mount
- Universal peripheral deck (pedal mounting)
- Atlas GT seat
- Apex freestanding triple monitor stand
Continue reading
- Moza R5 vs R9 vs R12: Which Wheelbase to Buy?
- Force feedback settings explained: tune your wheel without losing detail
- How to avoid force feedback clipping: a practical workflow across sims
- Load cell pedal setup guide: brake calibration, force and feel
- iRacing graphics settings for smooth racing on triples and VR
