Racetech - RT4100 Racing SeatDue to the weight and or oversized packaging of this product, a flat shipping fee of $50 (ground shipping) will be charged. Free shipping does not apply to this product. The RT4100 is a standard sized fiberglass race seat. We have focused on achieving a lightweight seat shell with optimized geometry, straddling that line between designing the seat to be wide enough in the shoulders to suit the athletic build, but narrow enough to fit in most cockpits.