BRIDE ZIEG IV Bucket Seat

The BRIDE ZIEG IV is a full bucket seat developed through extensive racing experience and direct feedback from professional drivers, built to deliver the highest levels of safety and holding performance available in the BRIDE lineup. The entire shell is shaped around a deep hold design with a characteristic rounded backrest line that wraps the driver’s body from the hips through the shoulders, keeping the driver firmly secured under high-speed cornering and significant lateral G-force without creating the fatigue or pressure points that come with seats that rely on a tight fit rather than a shaped hold. At the core of the ZIEG IV’s driving position engineering is the BRIDE patented LOWMAX system, combined with an egg-shaped backrest geometry. Together these features achieve a low seat position that places the driver’s eye point and overall driving posture at the ideal height for car control and spatial awareness. For drivers in modified vehicles or those where headroom is a consideration, the low positioning the LOWMAX system provides is a practical advantage that does not require compromising the deep hold or safety characteristics of the shell.

Low Position Essential For Circuit and Sports Driving

• ZIEG IV has implemented the LOWMAX system from BRIDE, which has a rounded backrest to allow the driver to have a lower eye point. This type of seat is great for racers and those driving on a circuit

Advanced Material and Manufacturing Method

• By incorporating higher grade materials such as glass fiber and aramid fiber into the existing FRP shells, the shell rigidity has been augmented by 15%. For the seat cushion and thigh cushion that are in direct contact with the body, molded urethane has been adopted to enhance the comfort and longevity of the ride

Shell Design and Hold Performance Considering Safety

• The redesigned shell and vertical cuts in the back support cushion the headrest and back, shoulders, and promote a comfortable and suitable driving posture for an extended period of time. The shape with elevated thighs prevents the occupant from sinking forward upon hard braking or a collision

Adopted Large Seat Belt Holes

• The ZIEG IV now includes the large seat belt hole that was previously featured in the ZETA III PLUS and XERO series. This allows the use of multiple types of racing harnesses and FHR systems, regardless of the driver‘s height and sitting position

The LOWMAX System For The Ultimate Low Position and A Backrest Shape With a Characteristic Round Shoulders Line Were Adopted

• The ZIEG IV is an advanced bucket seat engineered to deliver maximum security and performance, developed from years of racing experience and advice from professional drivers. Its shell is designed with a deep, rounded backrest that envelops the driver, providing a secure hold even in demanding cornering and G–force conditions. The BRIDE patented LOWMAX system and egg–shaped backrest offer a low seating position, giving the driver an optimal view and driving posture
• The Shell Material Can Be Selected From Two Types : FRP silver shell and Super aramid black shell
• The Color Variation Can Be Selected From Three Types : Gradation logo, Black and Red.
• ZIEG IV is a FIA approved model.

New Shell Design In Pursuit of Functionality and Utility

• This design is particularly attentive to detail, from the headrest to the back, shoulders, and shoulder bones, with vertical stitching along the back cushion that contours to the spine. The sides are made of tough PVC leather, designed to withstand the friction caused when getting in and out of the seat

FIA Approved and Conformity To The Safety Standard

• The ZIEG IV is compliant with the safety regulations of the Japanese Road Transport Vehicle Act, making it a suitable option for automobile inspection. Additionally, this product is certified by the FIA (International Automobile Federation) as meeting the “FIA8855–1999“ standard, making it suitable for international formal races and competitions. Its quality and design have been tested to the utmost rigor to ensure high safety standards

Seat Rail Compatibility

• FO
• FB
• FK
• FG
• IG
• FT
• FX
• LF

Frequently Asked Questions

• Is the BRIDE ZIEG IV FIA approved? Yes. The BRIDE ZIEG IV is FIA approved across all shell and color variations. FIA homologations carry expiration dates, so verifying the seat’s current approval status against the FIA’s active homologation list before use in sanctioned competition is recommended.
• What is the LOWMAX system and how does it affect the seating position? The LOWMAX system is a BRIDE-patented feature built into the ZIEG IV that allows the seat to achieve a lower mounting position than conventional full bucket seats. Combined with the egg-shaped backrest geometry, it places the driver’s eye point and overall driving posture at an ideal height for car control and spatial awareness. This is particularly beneficial in modified vehicles or any application where minimizing the seated height of the driver is important.
• How does the rounded backrest line improve hold performance? The ZIEG IV’s rounded backrest line creates a deep wraparound hold that conforms to the natural shape of the driver’s upper body. Rather than relying purely on lateral bolsters to resist movement, the curved shell geometry supports the driver from behind and around the shoulders, keeping them firmly in place under high-speed cornering and high lateral G-force. This reduces the physical effort required to maintain position, which directly benefits driver control and endurance over a session.
• What shell material options are available for the ZIEG IV? The ZIEG IV is available in two shell options: an FRP silver shell and a super aramid black shell. The FRP shell uses fiberglass-reinforced plastic construction, offering a durable and proven build. The super aramid black shell uses high-strength aramid fiber for a stiffer and lighter alternative. Both options are FIA approved and available in all three color variations.
• What color options does the ZIEG IV come in? The BRIDE ZIEG IV is available in three color variations: gradation logo, black, and red. All color options are available across both shell material choices and all carry FIA approval.
• How does the ZIEG IV differ from the ZIEG IV WIDE? The ZIEG IV and ZIEG IV WIDE share the same shell design, LOWMAX system, rounded backrest geometry, material options, color choices, and FIA approval. The WIDE variant is 30mm wider at the thigh section and 10mm wider at the shoulder section to accommodate larger-framed drivers. Drivers who fit comfortably in the standard ZIEG IV dimensions should choose the standard model; drivers who need additional room at the thighs or shoulders should consider the WIDE.
• Where is the BRIDE ZIEG IV manufactured? The BRIDE ZIEG IV is manufactured in Japan, built to BRIDE’s standards of quality, comfort, and safety using domestic components and the manufacturing processes the company has refined across decades of full bucket seat production.

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.