Hundreds Of Products Ready Today. Dispatch/Collection GT Omega Seat Upgrades: Which Seats And Brackets Fit The PRIME, TITAN And ART
Sim rig fitting guide, GT Omega cockpits
An email landed from a GT Omega Prime Lite owner with a seat in one browser tab and our brackets in another: which brackets and which sliders turn those two purchases into one working rig? We answer a version of that email most weeks, and the GT Omega range is the one it is usually about, so this page is the whole answer written down.
The short version is good news. If your GT Omega is one of the aluminium profile rigs, the PRIME, PRIME Lite or HYBRID, then almost every motorsport seat we sell will bolt to it, because on a profile rig the rails move to suit the seat. The longer version, including the steel framed TITAN and ART, the bracket choices and what each route costs, is below.
- PRIME, PRIME Lite and HYBRID are aluminium profile rigs: the seat rails adjust, so almost any motorsport seat fits
- Fixed back shells side mount through four M8 bolts at 290mm spacing, and universal brackets start at £31.80
- Recliners go on sliding runners across the rails, and the whole budget route lands at £360.00
- The steel TITAN and ART are a different story: keep the GT Omega seat or measure before you buy anything
- No FIA paperwork needed on a rig, and the sim versions of the Sparco shells save real money
Know which GT Omega you have
GT Omega sell seven cockpits and they split cleanly in two. The aluminium profile rigs are built from slotted extrusion, the same system industrial machine guards use, and a seat bolts anywhere along the slots with T-nuts. The steel rigs are welded and drilled where GT Omega decided, and that decides what fits. Find your rig here first, because every recommendation below hangs off this table.
| Cockpit | Frame | Seat situation | Upgrade path |
|---|---|---|---|
| PRIME | 160x40 aluminium profile | Sold with or without a GT Omega seat | Any side mount shell or recliner, brackets below |
| PRIME Lite / Lite-R | 80x40 aluminium profile | Sold with or without a GT Omega seat | Same as the PRIME, lighter profile |
| HYBRID | 80x40 aluminium profile | Includes GT and formula seat mount | Same again, with the most adjustment in the range |
| TITAN | Steel | Takes GT Omega’s own seats | Fixed hole pattern, measure first, see below |
| ART | Steel tube | Bundled with a GT Omega recliner | Same rails across their seats, swaps within the family |
| SPRINT | Folding steel | Seat is part of the frame | No seat swap on this one, honestly |
Frame types from GT Omega’s own pages and manuals, checked August 2026. The profile sizes matter less than the principle: slots and T-nuts mean freedom, welded steel means measuring.
The two ways a seat goes on
The two routes, drawn end on and not to scale. Route A bolts steel side mounts to the rails and the shell to the mounts. Route B bolts sliding runners flat across the rails and a reclining seat on top.
Route A is the one most people mean when they ask about upgrading: a fixed back bucket seat held by steel side mounts, brackets that bolt to the rig rails and then to the M8 holes in the shell’s flanks. It is rigid, it looks right, and it is what the rest of this page mostly deals in.
Route B keeps a reclining seat, which earns its place on a shared rig. The backrest folds for whoever drives next, and the seat sits on a pair of sliding runners bolted flat across the rails, the same 345mm x 271mm pattern the seat would use in a car. Cameron’s rule of thumb across the counter: one driver, route A. A household of drivers, route B.
The side mount interface most shells share: two M8 holes each side, 290mm apart front to back. It is why one set of universal brackets covers most of the seats on this page.
Profile rigs: PRIME, PRIME Lite and HYBRID
On these three the answer to the will-it-fit question is nearly always yes. The seat rails are lengths of extrusion, so you slide them along the base until they sit at your seat’s width, drop T-nuts into the top slots and bolt the side mounts down. The rig adapts to the seat, never the other way round.
GT Omega’s own Seat Adjustment Frame does the same job with built-in height and tilt settings for the PRIME and Lite, and it is a fine part, but it is not required to put a motorsport shell on the rig. The photo shows the joint that matters: brackets to the rails, shell to the brackets.
Three brackets cover the job. The QMS universal steel mounts at £31.80 are the value pick and the ones we fit most. The Endurance multi point mounts from £46.80 give more hole positions, useful when you want the shell lower or further back than standard. The Sparco FIA steel long side mounts at £58.74 are the drilled-for-everything option with the longest slot range. All three take the 290mm M8 pattern from the diagram above.
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Pick the seat by your build, then set the rails to it
Once the rig question is settled the seat question is about you, and here the sim market has a genuine bargain in it. Sparco sell sim versions of their QRT shells: the same shapes without the FIA homologation a rig never needed, at a saving worth having. These are the size bands we published on our Sim-Lab guide and they hold here unchanged.
| Seat | Best for | Weight | Price inc VAT |
|---|---|---|---|
| Sparco Grid Q QRT | Under 6ft, 32 to 36in waist | 6.5kg | £396.00 |
| Sparco Rev QRT (FIA) | All heights, 32 to 36in waist | 7.1kg | £414.00 |
| Sparco Pro ADV QRT | Over 6ft, 32 to 36in waist, head support | 9.3kg | £492.00 |
| Sparco Evo XL QRT | Over 6ft, 36 to 40in waist | 6.8kg | £525.60 |
| Sparco QRT-R | All heights, 32 to 36in waist | 7.1kg | £618.00 |
| Mirco RTX-7 3D (FIA) | Up to 190cm and 95kg, removable pads | 9kg | from £418.80 |
| Sparco GP | Under 6ft, formula driving position | n/a | from £564.00 |
Size bands are the ones from our published sim seat tables. Weights are manufacturer figures where stated. If you are between bands, ring us on 0115 9893488 and Cameron will talk you through the shell measurements before anything is picked.
Two of these deserve a sentence more. The QRT-R is the seat for the buyer who wants the near race-car look on the rig and sits in it for hours, and at £618.00 it is the one Garreth calls the keeper. The Sparco GP is the odd one out: a proper formula driving position, but it uses its own mounts at £63.60, not the universal brackets above, so budget the pair together.
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The recliner route for shared rigs
A Sparco R100 on runners is the cheapest proper seat a rig can wear. The seat is £282.00, the twin runner kit is £78.00, and the whole thing lands at £360.00 with fore and aft travel and a backrest that tips for the next driver. The R500 at £328.99 is the same idea with a deeper bolster if you want more hold without giving up the recline.
That is the value end of the row. For the setup where only the most premium recliner will do, Sparco make two seats that nothing else in this guide touches. The SPR at £1,858.94 puts a recline mechanism on a moulded fibreglass shell, the way competition buckets are made, so it holds like a bucket and still folds for the next driver. The SPX from £2,815.79 is the one Sparco built as the first carbon fibre reclining seat sold to the public: carbon backrest, Italian leather with an Alcantara centre to stop you sliding, around 12kg. Garreth’s view: on a rig you sit in for four hour stints and look at every day, the SPX is the seat that makes the whole build. All four recliners here carry Sparco’s 345mm x 271mm base pattern, so the same runners under any of them.
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TITAN, ART and SPRINT owners, read this bit
Here is the part a seat retailer is supposed to mumble. The steel rigs were designed around GT Omega’s own seats, and they are honest rigs at their price, but they do not take a motorsport shell the way the profile rigs do. The TITAN has a fixed hole pattern, and GT Omega’s answer for anything else is their Simulator Mounting Plate, their part and theirs to price. The ART’s bundled recliners share one set of rails, so swaps inside the GT Omega family work and outside it you are drilling. The folding SPRINT’s seat is part of the structure, and there is no swap we would put our name to.
One of the emails behind this guide was a TITAN-adjacent case: a GT Omega recliner creaking and flexing under a loadcell brake pedal. If that is you, the fix is a stiffer seat, and on a steel rig the sums start to favour changing the platform instead of adapting it. A profile chassis takes every seat on this page, keeps its resale, and grows with the next wheelbase. Garreth’s view: put money in the platform once, or keep paying for adapters.
The Sparco Evolve GT-R chassis at £454.80 is exactly that move: an aluminium profile chassis from a motorsport brand, ready for any seat and bracket combination above. Measure your room, bring the wheelbase, and the seat conversation gets easy.
What the three routes cost
| Route | Parts | Total inc VAT |
|---|---|---|
| Shared rig on a budget | Sparco R100 £282.00 + twin runner kit £78.00 | £360.00 |
| The all-rounder | Sparco Grid Q £396.00 + QMS side mounts £31.80 | £427.80 |
| The tall order | Sparco Evo XL £525.60 + Endurance mounts £46.80 | £572.40 |
| Add £78.00 for runners under a side mounted shell if the rig is shared | ||
Prices include VAT, checked 24 August 2026, everything in stock on the day. T-nuts and M8 hardware come with the brackets we sell.
Between the bands on the table? The sim seat row stands on the showroom floor in Nottingham, and trying three shells back to back is the quickest sizing tool there is. Ring first on 0115 9893488 and the row is yours for as long as it takes.
Common questions
Do I need an FIA approved seat for sim racing?
No. FIA homologation exists for scrutineering bays, and your rig will never see one. That is why the Sparco sim range exists and why it costs less than the FIA versions of the same shells. If you fancy the FIA badge anyway, nothing stops you, and an out-of-date FIA seat is a perfectly good sim seat too, so it is always worth asking us what ex-display or date-expired stock is about.
Will a bucket seat fit my PRIME Lite without modification?
Yes. Set the two seat rails to the width the shell needs, drop T-nuts in, bolt the side mounts down and the shell to them. No drilling on the rig, and the whole job is an hour with a hex key the first time.
How do I know the seat will fit me before it arrives?
Tell us your height and waist when you order and we check it against the shell measurements, the same bands as the table above. Better still, the Nottingham showroom has the sim seats out on the floor, and ten minutes of sitting in three shells beats any table on the internet.
My GT Omega recliner creaks under braking. Can I fix it?
The creak is usually the recline mechanism, because a loadcell pedal puts real load through the backrest and a road-style hinge was never asked to take it. A fixed back shell on side mounts removes the moving part entirely, which is the cure. On a profile rig that is a straight swap from the brackets on this page.
Which runners fit the aluminium profile?
Any of our universal runners bolt across the rails with T-nuts. The Sparco twin kit covers two seats for £78.00, and our sliding runner guide walks the whole subject if you want the long version.
Do you sell the GT Omega brackets and plates?
No, those are GT Omega’s own accessories and they sell them direct. We supply the seats, the side mounts and the runners, which is the half of the job GT Omega do not publish measurements for. Between the two of us you have the whole rig covered.
That is genuinely all Cameron needs: which GT Omega, how tall and how broad the main driver is, and the number you want to stay under. Ring 0115 9893488, or come and sit in the row in Nottingham, and leave with the seat and the right brackets in one box. The email that started this page ended with a Grid Q, the QMS mounts and a rig fixed by the weekend, which is how these usually go.