Racetech RT4100HR Racing Seat

The RT4100HR is a series of FIA-approved* fibreglass race seats equipped with head restraint wings for enhanced safety and available in 4 sizes. We have focused on achieving a lightweight seat shell with optimised 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. Our back-mounted technology has trickled down from the 119 and 129 Series, giving you the option of fixing the seat to the rollcage at shoulder level. Large harness guides and a removable moulded base cushion allow a range of drivers of varying heights to fit. Breathable Spacer fabric, parallel sides and pronounced thigh support round off the features of this accomplished motorsport seat.

For the taller driver, we have developed the RT4100THR, which utilises the RT4100WTHR shell but has added high-density foam to the sides up to the shoulders to bring the internal dimensions of the seat inline with a standard-width RT4100. This seat is 60mm taller than the standard size. For the larger driver, the RT4100WTHR is 60mm taller and 40mm wider. For 2026 we have introduced the RT4100SHR model, which is 50mm shorter than standard, this model is not FIA Approved.

The 4100 Series seats use Racetech RTB2009S steel or RTB1009M aluminium side mounting brackets.