BRIDE FK Super Seat Rail

BRIDE utilizes meticulous measurements of full–scale cars with varying shapes to craft a master rail for their super seat rails, which offer high strength and accuracy. Subsequently, they create the tools and utilize mass production techniques to create the rails for commercial use.

Using a computer to design rails is a possibility, though instead of providing ranges of measurements as the computer requires, they prefer to meticulously craft each part, including the size of each bolt hole, by taking measurements by hand. This helps to make the most of the fit of the frame to the seat rail and the seat to the seat rail by eliminating any extra gaps. For example, for both reclining seat and full bucket seat, there are nine and ten models respectively according to the model and various applications, ultimately allowing for the best seat position for over 800 car models.

Utilizes Sliders Made By Faurecia Exclusively For BRIDE

• BRIDE super seat rails use sliders, which are an important part, and BRIDE gets these exclusively from Faurecia (France), a top global supplier of mechanical components
• The sliders have been designed with strength and durability in mind, with 2.0mm thick upper rails and 2.3mm thick lower rails which lock on both the left and right sides, preventing any rattling. The pitch is 10 mm and it offers a total slide amount of 220 mm.

ASEA-Approved High Quality & Peace of Mind

• The ASEA certification of the super seat rail has been verified, making it suitable for use in motorsports activities. This product has been tested and approved by ASEA, a Japanese organization made up of motorsports companies and manufacturers and sellers of tuning parts.

Features

• The position can be set as low as 50mm, depending on the type of vehicle
• Manufactured in Japan
• Seat mounting dimensions / length : 290mm (±5) x 395mm

Applications

• XETA IV Series
• ZIEG IV Series
• A.i.R. Series

Notes

• The seat position may vary depending on the kind of vehicle

Frequently Asked Questions

• What seats is the BRIDE Super Seat Rail FK Type compatible with? The FK Type is compatible with the BRIDE fixed bucket seat series and edirb models 031, 042, 061, and 067, excluding the ZETA III Type-XL and the ZODIA. Third-party compatibility includes the RECARO SPG, SPARCO PRO DRIVE, AAR Racing, COBRA, and any other seat whose mounting dimensions fall within 290mm length x 395mm breadth.
• Which BRIDE seats are not compatible with the FK Type? The ZETA III Type-XL and the ZODIA are explicitly excluded from FK Type compatibility. Buyers fitting either of these models should use the appropriate alternative rail for their specific seat.
• How much does the FK Type lower the seat position? The FK Type is rated for a super low position of up to 50mm below standard. The actual drop achieved depends on the specific vehicle, and the maximum 50mm reduction is not guaranteed across all fitments. Depending on the vehicle type, the seat position may not be lower at all after installation. Buyers for whom achieving the maximum drop is a priority should confirm the achievable reduction for their vehicle before purchasing.
• How does the FK Type compare to the FO Type and FB Type performance rails? All three rails share the same mounting dimensions of 290mm (±5mm) x 395mm and the same seat compatibility range. The FO Type delivers a maximum 50mm position drop and is priced at JPY 31,900. The FK Type also achieves up to 50mm and is priced at JPY 37,400. The FB Type similarly reaches up to 50mm and is priced at JPY 42,900. Since all three rails share the same maximum drop rating, the differences between them relate to construction and engineering approach rather than the stated position figure alone. Confirming with Bulletproof Automotive which rail is most appropriate for a specific vehicle and seat combination is recommended before purchasing.
• What are the mounting dimensions of the FK Type rail? The FK Type has mounting dimensions of 290mm length with a ±5mm tolerance and 395mm breadth. Seats from other manufacturers that fall within these dimensions are also listed as compatible. Confirm the mounting footprint of any unlisted seat against these dimensions before purchasing.
• Is an import side stay required for any of the compatible seats? No import side stay requirement is stated for the FK Type. All listed compatible seats, including the RECARO SPG and SPARCO PRO DRIVE, are directly compatible without additional hardware based on the source information provided.
• Is the BRIDE Super Seat Rail FK Type made in Japan? Yes. The FK Type is manufactured in Japan to BRIDE’s quality and fitment standards, consistent with the domestic production approach applied across the BRIDE seat and rail lineup.

About BRIDE

BRIDE is a Japan-based manufacturer specializing in seats and rail components designed to sit closest to the driver, offering maximum protection in a collision. Their ASEA-accredited products meet full vehicle inspection standards and pass six rigorous safety tests covering seat back impact, head restraint performance, seat and belt mounting, and flame resistance. BRIDE is also the first Japanese company to receive FIA endorsement for its seats, with nine models approved for international competition. Every seat is built by hand in Japan using precision-engineered shells and technical fabrics, with all components sourced domestically to keep quality tightly controlled from start to finish. For BRIDE, “Made in Japan” reflects a long-held standard built on ingenuity, meticulous craftsmanship, and technical knowledge; qualities that make their seats a trusted choice in the demanding environment of motorsport.