Cybul Bucket Seat Mount With Sparco Adjustable Rails For MX-5 ND-GSM Performance Cybul Bucket Seat Mount With Sparco Adjustable Rails For MX-5 Mk4 (ND) From £270.00 Incl. VATFrom £225.00 Excl. VAT
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Cybul Mazda MX-5 NA/NB Bucket Seat Mounts

£94.80 Incl. VAT

Cybul Mazda MX5 Na Nb Bucket Seat Mounts by Cybul. Brand: Cybul. Construction: Steel. Make & model: Mazda MX5 MK1, Mazda MX5 MK2.

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SKU: Cybul-MX5-Mounts Categories: , ,
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This is the Cybul Mazda MX5 Na Nb Bucket Seat Mounts, Cybul’s take on the side mount. Side mounts bolt to the side of a bucket seat and connect it to the fitting frame or floor. Side mounting a seat generally gets you lower than bottom mounting and gives you some choice over seat angle.

Cybul Mazda MX5 Na Nb Bucket Seat Mounts specification

Category Cybul
Brand Cybul
Construction Steel
Make & model Mazda MX5 MK1, Mazda MX5 MK2
Powder Coat Colour Graphite
Sport Seat Position RHD Driver Side, RHD Passenger Side
Part number Cybul-MX5-Mounts

Choosing the right side mount

Side mounts bolt to the side of a bucket seat and connect it to the fitting frame or floor. Side mounting a seat generally gets you lower than bottom mounting and gives you some choice over seat angle.

Check the bolt spacing on your seat shell before ordering. Mount both sides evenly, and make sure the bolts do not foul the seat shell or the harness slots.

We have been supplying motorsport kit since 2003, so if you are unsure between two options, ask.

What to check before you order

A handful of details decide whether this side mount suits your car. These are the ones that matter.

  • Brand: Cybul. Check this against what you already run before ordering.
  • Construction: Steel. Check this against what you already run before ordering.
  • Make & model: Mazda MX5 MK1, Mazda MX5 MK2. Check this against what you already run before ordering.
  • Powder Coat Colour: Graphite. Check this against what you already run before ordering.
  • Sport Seat Position: RHD Driver Side, RHD Passenger Side. Check this against what you already run before ordering.

If any of it does not match what you have, ask us before you buy.

Buying the Cybul Mazda MX5 Na Nb Bucket Seat Mounts from SportSeats4u

Stock is shown live on this page. If you need the Cybul Mazda MX5 Na Nb Bucket Seat Mounts for a specific event date, tell us when you order and we will confirm the lead time up front.

We have been in the motorsport trade since 2003, supplying club racers, race teams and workshops across the UK and exporting worldwide. That means the advice you get on fitment comes from people who use this kit, not from a spec sheet someone copied over.

If you are buying for yourself and you are torn between two options, call us. Five minutes on the phone usually settles it.

Cybul Mazda MX5 Na Nb Bucket Seat Mounts questions

Will these fit my bucket seat?

Side mounts follow common bolt patterns, but shells vary between manufacturers. Send us the seat make and model and we will confirm before you order.

Do I still need a fitting frame?

Usually yes. Side mounts connect the seat to a frame or subframe, and the frame is what bolts to the car.

Can I adjust the seat angle?

Most side mounts give a small range of angle adjustment through multiple bolt holes. Check the holes match how you want to sit before drilling anything.

Not sure the Cybul Mazda MX5 Na Nb Bucket Seat Mounts is the right choice? Send us your car details or what you compete in and we will confirm before you order.

Browse more cybul. Related: Cybul MX5 ND Soft Top Rollbar – Track Version, Cybul MX5 ND Soft Top Rollbar – Street Version, Cybul MX5 NC Rollbar – Soft Top Version. Background reading: motorsport disciplines and what they require.

Additional information

Weight 3 kg
Dimensions 55 × 25 × 20 cm
Brand

Construction

Make & model

,

Powder Coat Colour

Sport Seat Position

,

Seat mounting and fixing points guide

A bucket seat does not bolt to the floor. It bolts to brackets, and those bolt to a car-specific subframe. Getting the fixing type right is what decides whether the parts you order fit together at all.

Two systems, and they are not interchangeable

Type How common Where it fixes What you need
Side mount 212 of our bucket seats Threaded holes in the sides of the shell A pair of side mount brackets, then a subframe
Base mount 20 of our bucket seats Holes through the flat underside of the shell A base frame or runners, then a subframe

The fixing type is a property of the seat, not a choice you make. Every bucket seat on the site lists it, so check the seat first and then buy the brackets to suit. A side mount seat cannot be base mounted and the reverse is equally true.

The stack, from the top down

Layer What it is
1. The seat Side mount or base mount, fixed by the shell
2. Brackets or runners Side mounts, a base frame, or sliding runners
3. The subframe Car specific. Bolts to the original seat mounting points
4. The floor Original captive nuts or reinforced mounting points
Order in this sequenceSeat first, then brackets to suit the seat, then a subframe to suit the car. Buying the subframe first is the usual way people end up with parts that will not talk to each other, because subframes are made for a fixing type.

Choosing side mounts

Once you know the seat is side mount, these are the things that vary.

Option What we stock What it changes
Profile High or low Low drops the seat as far as it will go. High gives clearance over a tunnel or a wide sill
Mounting holes 3, 4 or 6 How many positions the bracket offers. More holes means more fore, aft and height adjustment
Pattern A or B Which hole layout the bracket uses. It has to match the seat, so check the product
Length 350, 380 or 495 mm The bracket itself. Longer suits a longer shell and gives more adjustment range
Bolt size M8 or M10 M8 is the common one. Check what your shell is threaded for
Side RHD driver or passenger Brackets are handed. Order the right side, or a pair

We do not publish a hole spacing in millimetres, because brackets are sold to a pattern letter rather than to centres and a wrong figure would send you after the wrong part. Match the pattern named on the seat and the bracket, or send us both product links and we will check.

ABE or FIA

Two approval routes and they mean different things. FIA brackets are approved for competition and are what a scrutineer will look for. ABE is a German road approval, which is what you want on a road car where the seat has to be road legal and where an insurer may ask. Our range carries both, and the adapter type is listed on every bracket.

The side mount standard itself is FIA 8854-1998, and you will see it quoted on the competition brackets alongside the seat homologation.

Car specific mounts

Some brackets are made for one car rather than for one seat. We carry those from PCI Racing, Cybul, Cobra and SW Motorsports, covering the BMW E46 and E63, the Mazda MX-5 NA and NB, the Mini R53 and R56 and the Toyota GR Yaris. They combine the bracket and the subframe into one part, which usually gets the seat lower than a generic pair and takes fewer bolts to fit.

If your car is on that list, look there first. If it is not, you want generic side mounts plus a car-specific subframe from our fitting equipment range.

Things worth checking before you order

Brackets are handed

Driver side and passenger side brackets are not the same part. On a right hand drive car the driver side is the one with the handbrake and the transmission tunnel to clear. Most are sold as a pair, but where they are sold singly the side is listed.

Bolts are not always included

Some brackets come with the M8 bolts and some do not. It is listed on the product under M8 Bolt Options. Worth a glance, because it is annoying to have everything else on the bench.

Height and headroom

A low profile bracket gets you as far down as the parts allow, which matters in a car with a cage and a helmet. A high profile lifts you to clear a wide sill or a tunnel. If you are tall, or you are fitting a cage, start low and work up.

Send us the seat and the carThe seat you have chosen and the car it is going in. We will tell you which brackets and which subframe, and whether a car-specific mount would do the job better. Call 0115 989 3488 or email Sales@GSMPerformance.co.uk.

All figures read from our own product data across the side mount categories, checked 2 August 2026. Fixing type counts are across the bucket seat range on the same date.

Availability

Planted brackets are special order from the USA

We bring a batch over roughly every 3 to 5 weeks. Everything in each batch is pre-sold against a customer order, so the sooner your order is in, the sooner it ships.

Need it faster? Ask us before you order. We occasionally hold overstock of the popular models, and we can tell you what is on the shelf.

Special order, so non-returnable once shipped

Once your bracket has shipped from the USA for your order, our non-returnable policy applies. It was bought in for you specifically.

That makes it worth getting right first time. Send us your car and the seat you are fitting and we will confirm the correct bracket before you buy.

Planted Mazda MX5 Bracket

Compatible reclining seats

This bracket is drilled to the bolt pattern used by Recaro, OMP and most of the other major reclining seat brands.

A sliding runner sits between the bracket and the seat and is bought separately. Tell us which seat you are running and we will confirm the right one.

The seats below are a few we know fit. If yours is not on the list, ask us and we will check it.

Compatible bucket seats

This bracket is drilled to the bolt pattern used by Sparco, OMP and most of the other major base mount brands.

A sliding runner sits between the bracket and the seat and is bought separately.

The seats below are a few we know fit. If yours is not on the list, ask us and we will check it.

Compatible classic seats

This bracket is drilled to the bolt pattern used by Sparco, OMP and most of the other major base mount brands.

A sliding runner sits between the bracket and the seat and is bought separately.

The seats below are a few we know fit. If yours is not on the list, ask us and we will check it.

Will I fit in this seat?
Send us your height and waist size and we will confirm the fit. how a seat actually feels to sit in is a different question, and our showroom team sit in these seats every day, so call us and we will give you the honest answer.

What do I need to fit it to my car?
The car-specific frame for your vehicle, plus a sliding runner if you want fore-and-aft adjustment. Our guide on base mount versus side mount walks through the whole stack, and tell us your car and we will quote the full kit.

How do I know it will feel right, not just fit on paper?
Makers publish widths and weights, never feel, and two seats with identical numbers can feel nothing alike. We keep the ranges on display in the showroom, you are welcome to come and sit in them, and our head support measurements guide shows the kind of real-world data we collect.

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:

Book now!

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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Choose Klarna at checkout and pick the plan that suits you. The options and amounts for this product are shown below.

Use the purchase power check in the Klarna box for a quick, no-obligation look at what you could be approved for before you order.

How it works at GSM SportSeats4u

  1. 1Add the product to your basket and go to checkout as normal.
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  3. 3We dispatch straight away. You pay Klarna on the schedule you chose, and any refund goes back through Klarna.

Your questions, answered by Klarna

Klarna is available to UK residents aged 18 and over. Subject to status. Terms and conditions and late fees apply. Klarna Financial Services UK Limited is authorised and regulated by the Financial Conduct Authority. Full details at klarna.com/uk. Every way you can pay with us is on our payment and finance page, or call 0115 989 3488 and we will talk it through.

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.

ParcelForce

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.

Guides and advice

GuideBase Mount Or Side Mount? The Bucket Seat Fitting Stack Explained
GuideHow Deep Are Bucket Seat Head Supports? Cameron Measured Every Shell In The Showroom
GuideThe complete guide to universal seat sliding runners
GuideHow Long Do FIA Harnesses Last? Expiry Dates And The Rules Explained

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