Racetech RT4100 Vinyl Racing Seat - Wide & Tall (RT4100V-110)
The Racetech RT4100 Vinyl Racing Seat combines the proven performance and support of the RT4100 platform with durable marine-grade vinyl upholstery designed for off-road, open-air, and harsh-environment applications. Ideal for vehicles that are frequently exposed to the elements, the RT4100V delivers the same lightweight construction, ergonomic design, and driver support Racetech is known for while offering enhanced durability in wet conditions.
Built around a lightweight fiberglass shell, the RT4100V is engineered to provide excellent driver support without compromising cockpit fitment. Its optimized geometry offers generous shoulder room for athletic builds while maintaining dimensions that fit comfortably in most vehicle interiors. Racetech's advanced back-mount technology, derived from the renowned 119 and 129 Series seats, allows for shoulder-level roll cage mounting for additional support and rigidity. Large harness guides, a removable molded base cushion, parallel side bolsters, and pronounced thigh support make the RT4100V a versatile and comfortable choice for drivers of varying sizes and experience levels.
Features
- Lightweight fiberglass racing seat construction
- Marine-grade vinyl upholstery designed for wet environments
- Ideal for off-road and open-air vehicle applications
- Standard-size shell fits a wide range of drivers and vehicles
- Back-mount technology derived from Racetech's 119 and 129 Series
- Compatible with shoulder-level roll cage mounting
- Large harness guides for racing harness compatibility
- Removable molded base cushion
- Parallel side bolsters for improved support
- Pronounced thigh support for enhanced driver stability
- Designed for use with Racetech RTB1009M aluminum or RTB2009S steel side mounts
Benefits
- Provides exceptional support during competition driving
- Resists moisture and harsh environmental conditions
- Fits a wide variety of vehicle cockpits
- Offers flexible mounting options for motorsport applications
- Combines lightweight construction with all-weather durability
Dimensions & Weight

| Dimension Reference | Measurement |
|---|---|
| A - External Width at Shoulders | 25.2" |
| B - Height from Base to Shoulder Wings | 24.4" |
| C - Internal Width at Hips | 16.5" |
| D - External Width Across Wings at Seat Front | 20.1" |
| E - Base Length | 19.7" |
| F - Maximum Height | 36.6" |
| G - Height from Base to Harness Guide | 27.2" |
| K - Height from Base to Back Mounting Bosses | 24.4" |
| L - Maximum Length | 27.2" |
| M - Mounting Width (Side Mount) | 17.3" |
Dimensions correspond to the Racetech measurement diagram shown above.
Weight
- Shell Weight: 13.2 lbs
- Total Weight: 18.7 lbs
Certification
FIA 8855-1999 Approved
Ideal Applications:
- Club Racing Vehicles
- Track Day Cars
- Street/Strip Drag Cars
- Custom Motorsport Applications
CA Residents: WARNING: Cancer and Reproductive Harm www.P65Warnings.ca.gov

