BRIDE STRADIA III REIMS Reclining Bucket Seat

BRIDE’s sporty reclining seat, designed as a semi-bucket seat, offers high rigidity and support that rivals a full bucket seat, while enhancing ease of entry and exit. The STRADIA series, which has undergone its first complete redesign in nearly 15 years, represents a new generation of reclining seats. Developed with BRIDE’s vision to blend the holding performance required for track driving with the comfort and practicality needed for daily use, the STRADIA seats feature innovations from the design and body shell to the frame, cushion, and reclining mechanism. This flagship model draws on BRIDE’s 40 years of expertise and experience in motorsports.

The STRADIA Series

• A New Frame & Shell Designed Using 3D-CAD: The newly developed bone frame and monocoque body shell, inspired by the ZETA IV design, are specifically shaped to provide greater shoulder support, significantly enhancing hold performance. This redesign has increased the frame’s load capacity by 200%, improved torsional strength by 40%, and boosted the backrest’s frontal collision strength by 15% compared to the STRADIA II.
• A Newly Developed Stepped Reclining Mechanism: The reclining mechanism has been updated for a more compact design, delivering improved precision and strength. Backlash and looseness, common in stepped adjustment mechanisms, have been minimized to ensure more reliable holding and increased comfort.
• A One-Touch Reclining Lever with Excellent Functionality: In the STRADIA III, BRIDE replaced the backrest angle adjustment dial with a one-touch reclining lever, improving ease of use, durability, and space efficiency inside the vehicle.
• Utilizing the LOWMAX System Which Enables the Maximum Low Driving Position: The STRADIA series utilizes BRIDE’s patented LOWMAX System technology, which enables a low seating position, even in compact spaces. This system allows for precise alignment of the steering wheel and seat centers, eliminating offsets and ensuring maximum comfort and control.

The STRADIA III REIMS

• BRIDE’s latest flagship model offers a new generation of reclining seats, combining superior holding ability with convenience. Available in three color options—gradation logo, black, and red—the seats also come in two shell types: FRP silver shell and super aramid black shell. Cushion options include both standard and low-type cushions. The STRADIA III model, a high-performance reclining seat with excellent support, now features a fully redesigned skin and is upholstered entirely in high-quality, suede-like fabric.
  • Specially Designed Seat & Thigh Cushions: Specially designed seat and thigh cushions use high-density foam molded urethane to evenly distribute body pressure across the flat seat surface, providing strong support and reducing fatigue. The material resists compression and offers excellent durability. A low-type thigh cushion, with a thickness reduced to two-thirds, is also available as an alternative to the standard type.
  • Belt Holes Compatible with an FHR System & 6-Point Harness: The seat now includes large-diameter belt holes compatible with FHR systems such as HANS, as well as a newly added 6-point harness belt hole at the bottom of the seat—an addition often requested by STRADIA users. These features ensure greater safety for drivers participating in circuit racing and other motorsport activities.

Features

• Provides a higher-grade texture with full coverage in high-quality suede-like fabric that feels good against the skin
• Adopts a chic design with color lines as accents (3 colors available)
• A confident product that combines comfort and a hugging hold
• Flame-retardant fabric (high-quality suede-like fabric, PVC leather)
• Made in Japan
• Safety standard compliant model
• Equipped with seat sensor (seat area)

Specifications

• Series: STRADIA
• Base Model: STRADIA III
• Colors:
  • Black & black
  • Black & blue
  • Black & red
• Shell: FRP silver shell
• Width: 445mm (555mm at shoulder pads)
• Height: 860mm
• Depth: 710mm
• Weight: Approximately 14.2kg (31.3lbs)

Compatible Seat Rails

• LR
• RB
• RK
• RO

Notes

• Seat sensor may not be compatible with some vehicle models
• Vehicle-specific seat rails (sold separately) are required for installation

Frequently Asked Questions

• What makes the STRADIA III REIMS different from the standard STRADIA III? The REIMS is a variant of the STRADIA III that features full coverage in a high-quality suede-like fabric with chic color line accents in three combinations; black and black, black and blue, and black and red. The underlying seat engineering, frame, shell, reclining mechanism, LOWMAX System, and cushion options are shared across the STRADIA III range. The REIMS represents the premium upholstery and aesthetic direction within that lineup.
• How much stronger is the STRADIA III frame compared to the STRADIA II? The STRADIA III’s newly designed bone frame and monocoque shell deliver a 200% increase in load capacity, a 40% improvement in torsional strength, and a 15% increase in backrest frontal collision strength compared to the STRADIA II. These improvements were achieved through a complete redesign using 3D-CAD, with the shell geometry drawing inspiration from the ZETA IV.
• What is the LOWMAX System and how does it benefit the STRADIA III REIMS? The LOWMAX System is a BRIDE-patented technology that achieves a low seating position even in compact interior spaces, and allows precise alignment of the steering wheel and seat centers to eliminate positional offsets. In the STRADIA III REIMS, this means drivers can achieve the correct driving posture and maximum control regardless of the vehicle’s interior dimensions, which is particularly relevant for smaller or lower-roofed vehicles where standard bucket seats may sit too high.
• Is the STRADIA III REIMS compatible with FHR systems and 6-point harnesses? Yes. The STRADIA III REIMS includes large-diameter belt holes compatible with FHR systems such as HANS, and a newly added 6-point harness belt hole at the bottom of the seat. Both features are included to support drivers who compete in circuit racing and other motorsport disciplines where advanced restraint systems are required.
• What cushion options are available for the STRADIA III REIMS? Two cushion options are available; a standard type and a low type. Both use high-density foam molded urethane for even body pressure distribution and compression resistance. The low-type thigh cushion has a thickness reduced to two-thirds of the standard type and suits drivers who prefer a lower cushion profile or need a reduced seating height within their vehicle.
• What seat rails are compatible with the STRADIA III REIMS? The STRADIA III REIMS is compatible with the LR, RB, RK, and RO type seat rails. All compatible rails are sold separately. Vehicle-specific rails are required for installation and the appropriate rail type should be confirmed for the specific vehicle before purchasing.
• Does the STRADIA III REIMS have a seat sensor and is it compatible with all vehicles? Yes. The STRADIA III REIMS is fitted with a seat sensor in the seat area. However, the seat sensor may not be compatible with some vehicle models. Buyers should confirm sensor compatibility with their specific vehicle before purchasing, particularly if the vehicle uses an occupancy sensing system tied to airbag deployment or warning indicators.

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.