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RT4100HR Racing Seat - Outlet

Brand: Racetech Manufacturing
Code: RT4100WTHR-110
Availability: In Stock
£949.99 Ex £475.00

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Limited stock available at up to 50% off! Seats manufactured 2020 or 2021 with FIA Not Valid After (NVA) dates of 2025 or 2026 respectively. MSUK adds another 2 years to this date.


The RT4100HR is a standard-sized fibreglass race seat equipped with head restraint wings for enhanced safety. 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 patented 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 makes use of the shell of the RT4100WTHR but has specially 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 and for those wanting a seat without head restraints, our RT4100 and RT4100WT complete the 4100 Series. The 4100 Series seats use Racetech RTB2009S or RTB1009M side mounting brackets.

Dimensions and Weights:

Model Material FIA A B C D E F G H I J K L M Shell Weight Total Weight
RT4100HR Fibreglass 8855 60 56 38 47 50 87 63 45 32 77 56 67 40 6.1 8.1
RT4100THR Fibreglass 8855 64 62 38 51 50 93 69 45 32 83 62 69 44 6.6 8.8
RT4100WTHR Fibreglass 8855 64 62 42 51 50 93 69 45 32 83 62 69 44 6.6 8.6
                dimensions in cm         weights in kg

Seat Dimensions KeyDimensions Guide

Common Applications From clubsport to national-level circuit and rally
Stock Colour / Material
Gel-coat Gloss black
Seat Cover Black fire-retardant nylon fabric with Spacer mesh through the torso
Wear Patches N/A
FIA Homologation FIA 8855-1999
Shell Construction Fiberglass Composite
Shell Weight From 6.1kg
Side Mount Hole Centres 295mm
Back Mount Hole Centres 250mm
Bolt Torque (Zinc) 30Nm / 22 ft lb
Sizes HR - Standard
THR - Tall
WTHR - Wide & Tall
Head Restraint Integrated head restraint
HANS Compatible Yes
Harness Compatibility Up to 6-point harness
Large Harness Guides Yes
Air Ducting N/A
Back-mount Compatible Yes
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