What a sim racing cockpit actually includes

The frame price is not the sitting-down price

An aluminium profile cockpit changes the mounting question. It stops being "will this fit" and becomes "which plate do I need, and is it in the box".

Almost every comparison of these frames answers the first question and prices the second one at zero. That is where the money goes missing, and there are three separate places it hides.

The seat brackets nobody counts

"Seat not included" is on every spec sheet and everybody reads it.

What is not on the spec sheet is that both Sim-Lab frames also ship without seat brackets. Those are the parts that attach a seat to the profile, and they are a separate purchase from the seat itself.

So a frame advertised as needing a seat actually needs a seat and the hardware to mount it. When you compare that total against an all-in-one cockpit that arrives with a seat bolted in, you are comparing two different products and one of the price tags is incomplete.

This is the single most common way a cockpit costs more than the page said.

The bracket that is not in the box, for some of you

Here is the finding that surprised me most, because it is not uniform across brands.

Sim-Lab lists Moza CRP and SR-P pedals as mounting to the P1X Pro pedal deck with no extra bracket. The same document records that the Logitech and Thrustmaster sets need a connector bracket that is not included.

Same frame. Same question. Different answers, and a different real price depending on which pedals are already under your desk.

That asymmetry is invisible in every roundup, because a roundup treats a cockpit's compatibility as one property of the cockpit. It is not. It is a property of each pairing, which is why this site stores compatibility between interfaces rather than as a list attached to products.

If you own Logitech or Thrustmaster pedals and you are pricing a Sim-Lab frame, add the bracket. If you own Moza pedals, do not.

Why we believe Sim-Lab and not everyone else

The reason this is the only cockpit mounting claim on this site carrying a sourced stamp is not that Sim-Lab builds the best frames. It is that Sim-Lab publishes a list that names things.

Their document names Fanatec CSL, CSL DD, GT DD Pro, DD1 and DD2 for bases. It names ClubSport V3, Inverted V3 and the CSL and CSL Elite LC pedal sets. It names Moza R5, R9, R12 and R16/21. A claim in that form can be checked against the product in front of you.

We rejected a competing stand's claim to fit "all major wheelbase brands" for exactly the inverse reason. It is not that the claim is false. It is that it cannot be checked, so it cannot be a source, so anything resting on it stays unverified. GT Omega's Apex claim sits in between and was accepted: it says "pre-drilled for MOZA, Logitech, Thrustmaster, Fanatec", which names brands, with the recorded caveat that a brand-level claim does not separate the wheel deck from the pedal plate.

Specificity is the whole test. A vendor that names models is telling you they checked. A vendor that says "all major brands" is telling you they would like you to assume it.

A detail that only matters if it is you

Sim-Lab records that Fanatec CSL pedals fitted with the load cell kit use both front holes and two of the three rear holes on the GT1 EVO pedal plate.

That changes nothing about whether they fit. It matters if you are planning a pedal tray, shimming for heel position, or trying to work out why one hole is empty. We keep it because compatibility data that only covers the yes-or-no question is not much use once you are holding an allen key.

The gap in our own source

Sim-Lab's base list stops at DD1 and DD2 and does not include Fanatec's ClubSport DD.

The likeliest explanation is that the list predates that base. It is a newer product and this is the second time we have found a compatibility document that omits a manufacturer's own newest hardware. But likeliest is not sourced, so if you are pairing a ClubSport DD with a GT1 EVO, our data says unverified rather than yes.

That is not a satisfying answer. It is the accurate one, and the alternative was to quietly assume the convenient reading and let you find out with the frame already built.

The cockpit below is the one with a sourced mounting claim today. The stamp reads its own claims, not a pairing with your specific parts: check that in the builder.