The seat is the most underrated part of a sim racing setup. A better wheelbase might feel “cooler”, but a correctly mounted seat makes you:
- brake more consistently,
- steer with less fatigue, and
- drive longer without discomfort.
This guide is written for Sim-Lab rigs (GT1 Evo, P1X series) and any aluminium profile cockpit. We’ll cover bucket vs recline seats, brackets, sliders, and how to set the seat angle for GT and formula styles.
Bucket seat vs recline seat: what changes in driving feel
Bucket seats
- Best for: competitive driving, strong braking, keeping your torso stable.
- Why: the side bolsters reduce body movement, so your arms and legs can repeat inputs more precisely.
Examples on SIMGASM: Atlas GT bucket seat for GT-style posture, or Atlas Formula bucket seat for a more reclined formula/hypercar posture.
Recline seats
- Best for: comfort-focused setups, mixed gaming use, or people who dislike the “locked in” feel of a bucket.
- Why: easier entry/exit and more casual comfort for long sessions.
Example on SIMGASM: Core Recline seat.
Seat mounting types: side mount vs bottom mount
Most fixed bucket seats are side mount (holes on the sides). Many recline seats are bottom mount (holes under the seat).
- Side mount gives the best control over seat angle and height. It’s the usual choice for competitive rigs.
- Bottom mount is often simpler but can limit how low you can mount the seat (depends on the slider and frame).
On profile rigs, side mount is usually the most flexible option.
Brackets and sliders: what they’re for
Three common setups:
1) Brackets only (fixed)
Most rigid option. Perfect if you’re the only driver and you want maximum stability.
2) Brackets + slider (adjustable)
Great if you share the rig or your seating position changes between GT and formula styles. It’s also helpful when friends drive your rig.
3) Brackets + slider + quick pedal adjust strategy
The “shared rig” solution: adjust seat for leg length, adjust pedals for ankle angle, keep the wheel position consistent.
On SIMGASM, start with the seat bracket set and pair it with the seat that matches your posture goals.
Related: Shared sim rig setup: fast adjustments.
Setting your seat angle (GT vs formula)
This is the part that changes your comfort more than any new hardware.
GT-style posture (most common)
- Seat back moderately reclined.
- Hips slightly below knees (not always, but common).
- Pedals slightly raised vs seat base.
Formula/hypercar posture (more reclined)
- Seat back more reclined.
- Pedals higher relative to hips.
- Wheel often closer and slightly higher.
If you’re unsure, start with a GT position. It’s easier to get right and more comfortable for long sessions. If you mainly drive open-wheel cars and want the correct feel, a formula-style seat like the Atlas Formula bucket seat is worth considering.
Related: Rig setup for tall drivers.
Common mistakes (and quick fixes)
- Seat too far back: causes locked elbows and over-gripping the wheel. Bring the seat forward, then adjust wheel reach.
- Seat too upright: strains lower back under braking. Recline slightly and add stable lumbar support if needed.
- Pedals too low: forces ankle strain and inconsistent braking. Raise pedal angle or add a heel support point.
Sometimes the easiest consistency boost is a simple heel plate to create a repeatable foot reference.
Recommended SIMGASM parts for seat-focused upgrades
- seat bracket set as your mounting foundation.
- Atlas GT bucket seat for a supportive GT posture.
- Atlas Formula bucket seat for a more reclined posture.
- Core Recline seat if you want comfort without going full bucket.
FAQ
Do I need a bucket seat to be fast?
No, but a bucket seat makes it easier to be consistent because you move less under braking and cornering. Consistency is what turns into lap time.
How do I choose the right size bucket seat?
Measure your hip width, consider your shoulder width, and read the seat dimensions carefully. A seat that’s too tight will become uncomfortable; too loose reduces the “locked in” benefit.
Continue reading: Sim racing seat selection and fitting guide.
