Racetech RT4100 Racing Seat

Racetech RT4100 Fiberglass Racing Seat

The Racetech RT4100 is a premium FIA-approved fiberglass racing seat engineered to provide an ideal balance of lightweight construction, driver comfort, and cockpit fitment. Its optimized shell geometry is designed to accommodate athletic builds while remaining narrow enough to fit most race car interiors.

Borrowing proven technology from Racetech's flagship 119 and 129 Series, the RT4100 incorporates back-mount capability, allowing the seat to be securely attached to the roll cage at shoulder height for increased rigidity and safety.

Large harness openings accommodate a wide range of racing harnesses, while the removable molded base cushion allows drivers of varying heights to achieve a comfortable seating position. Breathable Spacer fabric, parallel seat sides, and pronounced thigh support provide outstanding comfort during long races and track days.

Features

• Lightweight fiberglass racing seat
• FIA-approved design
• Optimized shell geometry for excellent cockpit fitment
• Derived from Racetech's proven 119 and 129 Series technology
• Back-mount capability for roll cage attachment
• Large shoulder and harness openings
• Removable molded base cushion
• Breathable Spacer fabric
• Pronounced thigh support for enhanced comfort
• Compatible with a wide range of racing harness systems

Available Models

RT4100 (Standard)

• Standard-width fiberglass shell
• Designed to fit most drivers and vehicle interiors

RT4100WT (Wide/Tall)

• Approximately 2.25" taller and 1.5" wider than the standard RT4100
• Designed for larger and taller drivers

Head Restraint Models
For drivers requiring integrated head protection, the RT4100 Series is also available in:

• RT4100HR – Standard width with head restraints
• RT4100THR – Tall version with head restraints
• RT4100WTHR – Wide/tall version with head restraints

Whether you're building a drag car, road race car, autocross car, or track-day vehicle, the Racetech RT4100 delivers the comfort, support, and safety expected from one of the most respected names in motorsports seating.