RS Watanabe & Bride Zeta IV Racing Bucket Seat – Black / Silver FRP Shell

This is the latest model of the ZETA series which has won many races since its launch in 1990 and has kept the driver’s safety

RS Watanabe’s x BRIDE collaboration seat, based on the best selling ZETA 4 from BRIDE! Also, Watanabe added a special model with a special logo for Team 86 “Hachiroku”, which has many Watanabe enthusiasts. A standard logo model is also available, this can be installed cars other than the 86.

ZETA IV is the latest model of the ZETA series which is a standard model of BRIDE full bucket seats. This whose shell has been designed to fit the body shape, is a BRIDE flagship model designed for various scenes from road going to hard sports driving. Based on the BRIDE sheet manufacturing technology and experience over many years, this has achieved light weight and high rigidity by using high-performance materials for each part. This is a full bucket seat that is superior to conventional products in all aspects of hold-ability, comfort, durability, and safety.

Details1 Bride Zeta IV Racing Bucket Seat – Black / Silver FRP Shell
* Seat rail sold separately

  • Note : Production lead time can take up to 1-3 weeks from the day you per-order until delivery depending on production schedule.


  • JPY: ¥170,500

SKU FTO000574
Made in Japan
  • * 

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The ZETAIV is a FIA approved model.

New standard model
Standard shape of BRIDE full bucket seat derived from ergonomics and human skeleton. Based on the knowledge cultivated in the ZETA series, the newly-developed ZETA IV can be installed in many vehicle types and can be used regardless of the competition category. ZETA is the best seller of BRIDE full bucket seat standard model since 1990. This was designed to match the human skeleton and body shape, and considered for the safety of road driving, circuit driving and other motorsports. ZETA is the racing comfort model.

Shell design and hold performance considering safety
The new shell shape and the vertical slits in the back cushion improve the fit from the headrest to the back, shoulders, and can keep the appropriate driving position for a long time without difficulty. The shape design with the thigh lifted prevents the submarine phenomenon (a phenomenon in which the occupant sinks in the forward downward direction) during hard braking or collision accident.

Advanced material and Manufacturing method
By adding more high-performance materials to the FRP shells (glass fiber and aramid fiber) that have been used so far, the shell rigidity has been increased by 15%. The seat cushion and thigh cushion, which are in close contact with the body, have newly adopted molded urethane to improve comfort and durability for long driving.

LOWMAX system is used in ZETA series
The shoulder size is reduced to 560mm, and the LOWMAX system, which has been used only for some full bucket seats and reclining seats, has been introduced for ZETA. So the “seat center = handle center”, which was difficult with conventional design, was made with a larger number of vehicle types.

Size Information

Racing Service Watanabe Co., Ltd. (RS Watanabe) the design, development and manufacturing of racing cars & automobile parts since 1967

Made in Japan


Seat Type

Standard Zeta 4 FRP, Team 86 Zeta 4 FRP


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