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Full Bucket · Race-Bred
ZIEG IV is a full bucket seat elaborated to pursue high safety and hold performance, based on years of racing experience and feedback from professional drivers. The entire shell uses a deep-hold round-backrest shape that wraps the driver deeper than conventional buckets.
ZIEG IV is a full bucket seat elaborated to pursue high safety and hold performance, based on years of racing experience and feedback from professional drivers. The entire shell uses a deep-hold round-backrest shape that wraps the driver deeper than conventional buckets.
Even under high-speed cornering or high driving G, the driver is firmly held for reliable driving operations. BRIDE’s patented LOWMAX system and the egg-shaped backrest deliver a low seat position — ideal eye point and driving posture without sacrificing visibility.
Shell material can be selected from two types — Silver FRP shell and Super Aramid Carbon shell — with three colors: Black, Red, Gradation Logo. Every ZIEG IV is a FIA 8855-1999 approved model.
The shape fits naturally from the headrest to the back, shoulders, and especially the shoulder bone. The vertical stitching of the back cushion follows the spine naturally. Tough PVC leather is used for the sides where the driver gets on and off — a new design pattern obsessed with detail.


ZIEG IV conforms to the Japanese Road Transport Vehicle Act (automobile inspection) and has acquired FIA 8855-1999 from the International Automobile Federation — allowed for use in international formality races and competitions. Design and quality pass to the most severe FIA homologation tests.


Dimensions: Round-backrest deep-hold geometry · LOWMAX low-position posture · PVC leather side panels
All six ZIEG IV configurations from BRIDE’s spec sheet. Each Color × Shell pair is its own SKU. Your current selection: HB1ASF is highlighted below.
| Shell Material | Color | Product No. | Cushion | Weight | Cover | FIA |
|---|---|---|---|---|---|---|
| Silver FRP | Black | HB1ASF | Standard | 7.6 kg | Flame-retardant fabric | ✔ |
| Super Aramid Carbon | Black | HB1ASC | Standard | 7.6 kg | Flame-retardant fabric | ✔ |
| Silver FRP | Red | HB1BSF | Standard | 7.6 kg | Flame-retardant fabric | ✔ |
| Super Aramid Carbon | Red | HB1BSC | Standard | 7.6 kg | Flame-retardant fabric | ✔ |
| Silver FRP | Gradation Logo | HB1GSF | Standard | 7.6 kg | Flame-retardant fabric | ✔ |
| Super Aramid Carbon | Gradation Logo | HB1GSC | Standard | 7.6 kg | Flame-retardant fabric | ✔ |
You'll get an instant confirmation email with your part details and invoice. We source from a network of authorized suppliers across the country, so lead times vary by brand and part type — we'll send a tracking number the moment your parts move.
Made-to-order builds — carbon fiber bodywork, fabricated systems, custom finish work — run longer than off-the-shelf items because they're built per order. You'll get progress updates throughout the build.
Need a specific timeline on a part before you buy? Call 805-267-9762 or hit the chat — we'll check vendor stock direct and give you a straight answer.
Absolutely! Once your order ships, you'll get an email with a tracking link so you can follow its journey from our shop to your doorstep.
If your order ships via freight, you'll get a separate email with a direct link to the carrier's tracking page — easy and stress-free.
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