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The PCI high strength racing sliders are made to our specifications using heavier gauge steel and hardened steel roller balls. Extra lower mounting holes have been added to allow the sliders to be bolted to the base with 4 bolts per slider. Mounting each slider to the base with 4 bolts will greatly increase the strength when the slider is slid forward or backward and not perfectly centered. Features a 355mm release handle.
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In-store displays:
We have a premium range of over 125 seats from brands including: Bimarco, Cobra, Corbeau, Sparco, OMP, Recaro, GP-Race, and Bride to name just a few brands we work with.
Alongside this, we also stock and display HANS devices, harnesses, race-wear, race-suits, FIA helmets and various other safety equipment. If you are looking to visit us to see and try any particular seat or product, please contact us in advance and we’ll be happy to help.
In-Store appointments:
Due to the specialist nature of our services, we do ask that you please contact us in advance to book an appointment. We have multiple slots available each day including selected availability at the weekend.
Working by appointment allows us to dedicate our time with you and provide a personal and professional service. We’ll always ensure you leave with the right equipment for your needs.
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Fast delivery lead times:
If you require fast delivery, please contact us in advance of ordering and we’ll happily check stock allocation and availability for you. We carry a large amount of stock at our showroom and across multiple distribution hubs. This allows us to provide immediate dispatch across a huge number of brands from Corbeau and Cobra through to Sparco and OMP. (Does not apply to all items)
Due to the niche market we work in, some products are custom hand made to order, or special order from manufacturers like PCI Racing and Planted Technology. If you want to know how fast a product will be dispatched. Simply drop us a message through our Contact us form.
Addtional lead time notes:
Quick dispatch: Stocked products are dispatched within 24-48 hours with Parcel Force.
Sparco roll cages: We can only deliver these to a registered (LTD) company address.
In-store collection: Please contact us in advance to book an in-store collection appointment.
Seat runner and slider guide
Sliding runners let you move a fixed back bucket seat forwards and backwards. There is one thing everybody gets wrong about them, and it is worth clearing up before you look at the range.
The millimetres are the handle width, not the travelA 405 mm runner does not move further than a 291 mm runner. Every runner here gives the same fore and aft adjustment. The figure in the title is the width of the handle bar that spans underneath the seat, and you pick it to match the width of the shell you are fitting. All three Corbeau options are the same price, which is the giveaway.
Match the handle width to the seat
Measure across the underside of your seat between the two mounting rails, or check the seat width the manufacturer quotes. Then pick the runner whose handle spans it.
| Handle width | Sold as | What it suits |
|---|---|---|
| 290 mm | Retro and Sportline | Narrow shells and classic seats |
| 291 mm | Cobra, Corbeau | The common narrow option |
| 320 mm | Motorsport STD | Standard width bucket seats |
| 345 mm | Corbeau | A step up from standard |
| 370 mm | Motorsport L | Wider shells |
| 405 mm | Motorsport XL, Cobra, Corbeau | The widest we stock |
If you are between two, go by the seat rather than by preference. A handle that is too narrow will not reach the rails and one that is too wide will foul the tunnel or the sill.
Runners made for a specific seat
Some kits are built for one shell rather than sold by width. If your seat is on this list, that kit is the easier answer.
| Brand | Seats | Notes |
|---|---|---|
| Tillett | B5, B8, B9 | Runner kits made for those shells |
| Recaro | Pro Racer SPA and SPG, standard and XL | Two widths, matched to the shell |
| Sparco | P1300GT and P1300GT LW | Base mount kit, quotes a seat width |
| Cobra | Nogaro | Sliding fitting kit for that seat |
| Endurance | Sparco and Recaro compatible | Aftermarket kits to suit those shells |
Check the fixing type firstThe Sparco and Endurance runner kits are written for base mounted seats and quote a seat width rather than a handle width. A side mount seat needs side mounts and a subframe, not a base runner. Read our seat mounting and fixing points guide if you are not sure which yours is.
What a runner costs you
Height
A runner sits between the seat and the subframe, so it lifts you. In a car with a cage and a helmet that is the first thing to check, because the few centimetres it adds is exactly the amount you did not have spare. If you are tall, work out your headroom before you commit to running sliders at all.
Rigidity
A fixed seat bolted straight to a subframe is the stiffest way to mount it. A runner adds a moving joint. It is entirely normal for road and track day use, and it is why a lot of competition cars do without.
Sharing the car
The obvious reason to fit them. If two drivers use the car, or you drive it to the circuit and someone else drives it home, runners are worth the height and the weight. If it is your car and only yours, bolting the seat where you want it is simpler and lower.
Tell us the seat and we will match the runnerThe seat make and model, and whether it is side mount or base mount. The handle width has to match the shell and it is quicker for us to check than for you to measure it twice. Call 0115 989 3488 or email Sales@GSMPerformance.co.uk.
Widths and compatibility read from our own product data, checked 2 August 2026. All runners in this range give the same fore and aft adjustment.
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