The SIMGASM Sport is a very good match for a MOZA R25 Ultra when you run long races at high force, use firm load cell pedals or add many accessories. Strictly by torque, the Club is the minimum tier for the R25 Ultra, because SIMGASM places bases above 16 Nm up to 26 Nm in the Club class. The Sport adds headroom for sustained full output.
So the real question is how you drive, not only how strong the base is. This guide walks you through the numbers, the mount and the choice between Club, Sport and Pro.
What makes the R25 Ultra demanding
Before you pick a frame, it helps to know what the R25 Ultra asks from it.
25 Nm sustained, not just a peak
MOZA specifies the R25 Ultra at 25 Nm sustained torque. Many bases list a short peak value, but sustained means the base delivers that force again and again. During a long stint, the cockpit carries the full rated force lap after lap. A frame that feels fine for ten minutes can start to twist slightly after an hour of heavy kerb strikes.
Why flex matters at this level
Flex is small movement in the frame or wheel mount. You feel it as a soft, vague steering response, because some force goes into bending metal instead of into your hands. At 25 Nm that loss becomes easy to notice. Our direct drive torque guide explains how torque and rig stiffness work together.
SIMGASM | Sport Aluminum Sim Racing Cockpit - Red
Club, Sport or Pro for the R25 Ultra
SIMGASM gives a clear rule for each tier, and the R25 Ultra sits close to a border.
Club: the torque matched start
The Club covers bases above 16 Nm up to 26 Nm. With 25 Nm, the R25 Ultra fits that class, and that is why SIMGASM calls the Club the torque matched starting point on its MOZA R25 Ultra compatibility page. For sprint races and casual driving, a correctly built Club does the job.
Sport: headroom for long, hard sessions
Choose the SIMGASM Sport when you expect frequent full output endurance sessions, very firm braking or extra equipment on the chassis. The Sport uses a 40 x 120 mm main profile, a pedal deck rated for 300 kg braking load and integrated cable passthroughs. It also handles a later upgrade to a base above 26 Nm without a new frame.
Pro: the no compromise option
The Pro steps up to a 40 x 160 mm profile with heavy duty steel reinforcement at key mounting points. SIMGASM calls it the no compromise choice for sustained maximum force and motion plans. The first look video above shows that C160 frame. For most R25 Ultra owners, though, the Sport already gives plenty of margin.
SIMGASM | Sport Aluminum Sim Racing Cockpit - White
Which Sport mount fits the R25 Ultra
Getting the mount right matters as much as the frame itself.
Bottom mount or side mount
On the Sport, the Bottom Mount covers supported underside patterns from brands including MOZA. The Side Mount covers supported Fanatec, MOZA and SIMAGIC models. The regular Front Mount covers Simucube and VRS patterns only. Always check the model table on the product page before you order, and read our guide on bottom, front or side mount if you doubt.
Set it up for long stints
Once mounted, tune the base in software. Our MOZA settings guide for Assetto Corsa includes the R25 and gives a safe baseline. Route the thick power cable through the Sport passthroughs and leave a service loop at the mount.
SIMGASM | Sport Aluminum Sim Racing Cockpit - RothBros
Why SIMGASM treats endurance as a design factor
The advice above comes from people who race long distances themselves.
Johan Akkerman, founder and product designer of SIMGASM, won the DNRT BMW E30 Cup and Endurance Series in 2023 and 2024. He sees seating geometry and consistency over long sessions as just as important as outright stiffness. His own simulator is a Sport with a Formula Atlas seat, VR and motion. SIMGASM tests every product as part of a complete simulator, from its base in Wijk bij Duurstede, the Netherlands.
Frequently asked questions
Quick answers for R25 Ultra owners.
Is the Club strong enough for a MOZA R25 Ultra?
Yes, the Club is the torque matched minimum. Pick the Sport for long sessions at full force.
Does the R25 Ultra fit the Sport side mount?
The Side Mount covers supported MOZA models. Confirm your exact model in the table on the product page.
Do you need a Pro for 25 Nm?
No. The Pro is for maximum margin, motion or bases above 40 Nm.
Is the seat included with the Sport?
No. Seats are sold separately, so you choose the one that fits your position.
Want to learn more? The SIMGASM experts are happy to help.
