The right SIMGASM seat depends on how you race and where your rig stands. Choose the Atlas GT for an upright GT, touring car or endurance position. Choose the Atlas Formula for a low, reclined open wheel position. Choose the Core Bucket for a fixed driving angle that folds away for storage, and the Core Recline when you want an adjustable backrest that also works as an office chair. SIMGASM backs its seats with a standard 2 year warranty.
In 2026 the SIMGASM seat range covers two families: the modular Atlas seats and the practical Core seats. They look similar in photos, but they feel very different once you sit in them. This guide helps you match the seat to your cars, your body and your room.
What should you decide first?
Start with your driving position, because that choice narrows the range straight away.
A GT position is upright, with your knees bent and your back fairly straight, like in a road car or a GT3 car. A Formula position is lower, with your legs higher and your upper body leaning further back, like in a single seater. If you mainly drive GT, touring cars or endurance races, an upright seat feels natural. If you mostly race open wheel cars, a reclined seat makes the rig feel purpose built. Not sure yet? Our guide on which sim racing seat suits GT and Formula helps you decide.
Fixed back or adjustable back?
A fixed back seat gives you the same reference point every lap. That helps consistency under hard braking. An adjustable back gives more comfort for mixed use, like racing in the evening and working at a desk during the day.
Atlas GT: for GT, touring car and endurance racing
The Atlas GT is the choice for drivers who want a supportive, upright race position.
It is a complete fixed back seat with a sculpted shell, washable memory foam cushions and side mounting through the separately sold SIMGASM Seat Bracket Set. The brackets set both the height and the angle. The shell has a predefined bass shaker mounting pattern for clean tactile feedback, plus an extra mounting point for a cup holder or headset holder. It comes in black, white and carbon finishes.
SIMGASM | Atlas Sim Racing Seat Gran Turismo - Carbon
Room to grow with the patented Atlas base
The Atlas uses one shared lower base with interchangeable upper sections. Start with GT, then add the Formula upper section later, and its matching Formula cushion set comes with it. So you get two different race positions without a second complete seat in your room.
Atlas Formula: for open wheel racing
The Atlas Formula puts you in the lower, more reclined position of a single seater.
Its sculpted carbon composite shell and memory foam cushions support you around that open wheel posture. Like the GT, it is fixed back and side mounted. It is also the seat SIMGASM founder Johan Akkerman races on himself: his own simulator combines the SIMGASM Sport cockpit with the Formula Atlas seat, virtual reality and motion. He especially enjoys Formula 1 cars from the 1960s and 1970s. For a full layout check, read what you need to mount a sim racing seat.
SIMGASM | Atlas Sim Racing Seat Formula - Carbon
Core Bucket and Core Recline: practical choices
The Core seats focus on everyday use, with simple mounting and smart extras.
The Core Bucket Racing Seat has a steel frame and pronounced side bolsters. Its backrest stays at a fixed angle for driving and folds to a near vertical position only for storage. A 360 x 385 mm bolt pattern sits underneath for bottom mounting, usually on the SIMGASM Dual Locking Seat Slider Set. That makes it a strong pick for small rooms, as we explain in is a folding sim racing seat smart for a small room.
The Core Recline Seat combines leather and suede with a backrest that moves from reclined to near vertical. Its 193 x 193 mm pattern underneath fits almost all standard office chair mechanisms, and with the SIMGASM Office Kit it turns into a full office chair. Both live in the Core seat range.
Comfort extras worth knowing
For Atlas owners who want more lower back support, the optional Atlas Lumbar Support Cushion adds targeted support while the standard cushions stay in place. Measure your hips and shoulders before you order, so the shell fits your body.
Which cockpit pairs best with your seat?
Your seat and your frame work as one system, so match them with care.
The Hobby is the best selling frame and the most compact, with a 40 x 40 mm main profile and a rated braking load of 150 kg at the pedal deck. It pairs nicely with a Core Bucket in a small room. The Club steps up to 40 x 80 mm and 200 kg. The Sport and Pro reach 300 kg and suit a heavy Formula or motion build. Browse all aluminium sim racing cockpits to compare, then pick your seat from the sim racing seats range.
SIMGASM | Hobby Aluminum Sim Racing Cockpit - Purple
Why trust this advice? Johan designed and led the development of the complete SIMGASM range, from 3D design to the final inspection of materials and finishes. Before SIMGASM he was responsible for the design of the TRX seat at Trak Racer. SIMGASM B.V. is based in Wijk bij Duurstede in the Netherlands, and you reach the team at hello@simgasm.com or via WhatsApp.
Questions and answers about choosing a SIMGASM seat
Short answers to the questions buyers ask most in 2026.
Which SIMGASM seat is best for GT racing?
The Atlas GT, because its upper section supports the upright position used in GT, touring car and endurance racing.
Can I switch an Atlas from GT to Formula later?
Yes. Add the other upper section to the shared Atlas base, and the matching cushion set comes with it.
Which seat works as an office chair?
The Core Recline Seat. With the SIMGASM Office Kit it becomes a full office chair for your desk.
Do Atlas seats need extra brackets?
Yes. The Atlas uses side mounting with the separately sold SIMGASM Seat Bracket Set.
Want to learn more? The SIMGASM experts are happy to help.
