Suzuki Alto Works (HA36S) Seat Guide: A BRIDE Rail For Every Type Of Seat
Suzuki Alto Works, HA36S, 2015 on
A customer asked us for a seat guide for his Suzuki Alto this week, and the timing is right. The little Works has started turning up on UK driveways as a JDM import, BRIDE make a vehicle-specific rail for it in five types, and we stock all five along with the seats to go on them. This page covers the rails, then nine seats we would actually fit, from a £252 steel FIA bucket to BRIDE’s own shells.
One thing to sort out first though, because the chassis code on your logbook decides whether any of this fits your car at all.
- Every rail on this page is for the HA36S, the 2015-on Alto Works, check your logbook first
- Five genuine BRIDE rail types: two bottom mount, three side mount
- The MO rail carries the two bolt patterns the mainstream seat brands drill
- All rails bolt to the factory floor points, one rail per seat, no drilling
- Rails run £240.00 to £276.00 including VAT

First: which Alto is yours?
Suzuki have built the Alto since 1979 and the generations do not share floor mounting points, so the chassis code matters more than the badge. Every rail on this page is listed by BRIDE for one car: the Alto Works HA36S, the 658cc turbo kei car built from 2015, which is the one coming into the UK as a JDM import. The code is on the logbook and stamped on the plate in the engine bay.
If your Alto is a 2006 car, it is an earlier generation and these rails are not listed for it. We can still sort seats for that car, the parts are just different: ring 0115 9893488 with the chassis code off the logbook and we will start from what actually bolts to that floor.
Five rails, two families
All five are genuine BRIDE, made in Japan, and all five bolt to the HA36S floor points with the slider built in. One rail carries one seat, so a pair of seats needs a rail each, and every rail is handed: pick the side of the car in the options when you order. The choice between them comes down to how your seat mounts.
Bottom mount rails: RO and MO
For seats that bolt down through their base: reclining sports seats and bottom-mount shells. The RO is drilled 260mm x 405mm for BRIDE’s own recliner families such as the GIAS and STRADIA. The MO carries two patterns, 330mm x 290mm and 271mm x 345mm, and those are the same two spacings the mainstream brands drill, which is what opens it up to non-BRIDE seats.
Side mount rails: FG, FO and FX
For BRIDE’s fixed bucket series, carrying the shell through its sides at 290mm x 395mm. The FG sits the shell up to 50mm lower, the FO and FX up to 30mm. In a cabin as upright as the Alto’s, that difference is the whole decision, and it is why BRIDE offer three.
| Rail | Mounting | Pattern | Seat drop | Price inc VAT |
|---|---|---|---|---|
| BRIDE RO | Bottom mount | 260mm x 405mm | Vehicle dependent | £240.00 |
| BRIDE MO | Bottom mount | 330mm x 290mm and 271mm x 345mm | Vehicle dependent | £264.00 |
| BRIDE FG | Side mount | 290mm x 395mm | Up to 50mm lower | £252.00 |
| BRIDE FO | Side mount | 290mm x 395mm | Up to 30mm lower | £264.00 |
| BRIDE FX | Side mount | 290mm x 395mm | Up to 30mm lower | £276.00 |
All five listed by BRIDE for the Alto Works HA36S, with the official BRIDE part number shown per side on each listing. Prices include VAT, one rail carries one seat.
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From £240.00 Incl. VATFrom £200.00 Excl. VATNew for 2026Select options This product has multiple variants. The options may be chosen on the product page
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From £264.00 Incl. VATFrom £220.00 Excl. VATNew for 2026Select options This product has multiple variants. The options may be chosen on the product page
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From £252.00 Incl. VATFrom £210.00 Excl. VATNew for 2026Select options This product has multiple variants. The options may be chosen on the product page
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From £264.00 Incl. VATFrom £220.00 Excl. VATNew for 2026Select options This product has multiple variants. The options may be chosen on the product page
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From £276.00 Incl. VATFrom £230.00 Excl. VATNew for 2026Select options This product has multiple variants. The options may be chosen on the product page
Which rail for which seat
Match the seat you want to the row that describes it, and the rail column is your answer.
| The seat you want | The rail | Why |
|---|---|---|
| A BRIDE recliner (GIAS, STRADIA and family) | RO | Drilled to BRIDE’s own 260mm x 405mm recliner pattern |
| A reclining or bottom-mount seat from Sparco, OMP, Corbeau or Cobra | MO | Its two patterns cover the 345mm x 271mm and 291mm x 330mm families those brands drill |
| A BRIDE fixed bucket, sitting as low as possible | FG | Side mount with up to 50mm of drop |
| A BRIDE fixed bucket at a normal height | FO or FX | Side mount with up to 30mm of drop; ask us which of the two suits your exact shell |
| A non-BRIDE fixed bucket | Ring us first | The side rails are drawn for BRIDE’s own shells, so we check your seat against them before you order |
The seats we would put in it
A Works is a small, honest car, and the seat bill should respect that. Everything below is in stock, every seat is one Garreth would happily bolt into this car, and the ladder runs from £252 to £1,243.84 so there is a sensible stop wherever the budget sits. On a car that weighs about as much as a big motorbike, taking weight out of the seats is the cheapest performance you will ever buy.
Three steel frame FIA seats: the value route
Steel framed, FIA 8855-1999 approved, and all three sit on the MO rail through its bottom-mount patterns, so the parts list is one rail and one seat per side. The Sparco Sprint at £252.00 comes in black, blue or red. The Cobra Monaco Pro at £282.00 is Cobra’s entry FIA seat in spacer fabric, with trim options if plain black is too quiet. And the OMP TRS-E is listed as a pair at £468.00, which is both seats done, FIA approved, for less than one fibreglass shell. For a kei car doing road miles and the odd sprint, Garreth would take the TRS-E pair and spend the change on tyres.
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From £252.00 Incl. VATFrom £210.00 Excl. VAT Select options This product has multiple variants. The options may be chosen on the product page
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From £282.00 Incl. VATFrom £235.00 Excl. VATKlarna ReadySelect options This product has multiple variants. The options may be chosen on the product page
Three fibreglass FIA shells: the serious route
Lighter and stiffer than the steel seats, and all three are side mount shells, so the rail and the mounts get specced together: tell us which shell and Cameron pairs the hardware before anything is picked. The Sparco Grid Q at £438.00 is the small QRT shell in breathable fabric, HANS friendly, and the one we sell most into small cabins. The OMP ARS-R at £513.60 runs Airtex trim and is cut for a 36 to 38 inch waist, so it is the one to try if the Grid Q pinches. The Sabelt GT3 at £517.20 is listed for all heights with a 32 to 36 inch waist and takes a 4 or 6 point harness, and it is the one that surprises people who have never sat in a Sabelt.
Three BRIDE shells: the full JDM build
The rails are BRIDE, so the shells can be too, and the FG, FO and FX side rails are drawn for exactly these seats. The ZETA IV Reims at £946.43 is the way in, a full bucket in fabric on a silver FRP shell, cut for 28 to 32 inch waists, which suits smaller drivers the European shells often do not. The ZODIA at £1,135.68 is the same idea with more room, 32 to 38 inch waists. And the XERO CS at £1,243.84 is the flagship of the three: FIA approved, HANS friendly, built-in head support, and available in Super Aramid if the budget stretches. A Works on BRIDE rails with a BRIDE shell is the build the JDM crowd photographs, and it happens to be the correct one too.
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From £946.43 Incl. VATFrom £788.69 Excl. VATKlarna ReadySelect options This product has multiple variants. The options may be chosen on the product page
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From £1,243.84 Incl. VATFrom £1,036.53 Excl. VATKlarna ReadySelect options This product has multiple variants. The options may be chosen on the product page
Common questions
Do these rails fit my 2006 Alto?
No. Every rail on this page is listed by BRIDE for the HA36S, built from 2015. A 2006 Alto is an earlier generation with different floor mounting points. Ring us with the chassis code from your logbook and we will look at what suits that car instead.
My logbook says K11. Which rail do I need?
None of these: K11 is a Nissan Micra chassis code, not an Alto one. We look after Micra K11s too, including half cages we stock for exactly that car, so ring us and we will start from what the Micra needs.
Does fitting a rail need any drilling or welding?
No. Each rail bolts to the factory seat mounting points in the floor, the slider is built in, and the car goes back to standard by refitting the original seat.
Do I need one rail or two?
One rail carries one seat, so a driver seat needs one rail and a pair of seats needs two. Every rail is handed: pick the side of the car in the listing options.
Will a Sparco or OMP bucket go on the side mount rails?
The FG, FO and FX are drawn by BRIDE for their own fixed bucket series, so we do not claim other shells onto them from here. Tell us the exact seat and we will check it properly, and if it is a bottom-mount seat the MO rail is usually the cleaner answer anyway.
The car is a fresh import. Anything else worth doing while the seats are out?
Have a look at the state of the carpet and the floor while you are in there, and if you are going the harness route later, plan the seat choice around it now: a harness wants a fixed bucket with proper slots, which points you at the side mount rails and a BRIDE shell.
Those two facts settle everything on this page. Cameron will confirm the code matches the HA36S, name the right rail type for the seat, and make sure the correctly handed part goes in the box first time.
Where to go next
Ring 0115 9893488 with the chassis code off the logbook and whichever seat you are leaning towards, and we will have the rail, the side and the price sorted in one call. If you are still choosing the seat itself, the showroom has small shells on display you can sit in, and a kei cabin is exactly the case where sitting in the shell first pays off.













