Tillett B9


The lightest car seat option for road and track use in performance saloon cars. The B9 is identical in shape to the B8. The difference between the two models is weight and finish. The B9 weighs an astonishing 3.2kg and has a beautiful gloss carbon finish both front and rear, making it the premium option.

The B9’s fantastic qualities are a result of its twin skin moulding construction, structural use of carbon fibre and epoxy resin. These attributes result in a seat both rigid and strong yet remains far lighter than any other comparable seats on the market.

The B9 has excellent support along with comfort and convenience for daily driving. The carefully contoured shape locates the body firmly in position, whilst leaving the shoulders free to steer the car unhindered. Its shape is so perfectly moulded to the body that it requires no covering, reducing the overall seat weight even further and lowering the driving position. The ability of the B9 to run without padding makes it ideal for an open topped car used in a harsh environment. We do however recommend using our thin Dinamica suede covered panel sets for more regular road use.

There are two edge cuts, the B9-44.5 we call “edges on” meaning the continuous rolled edge at the leg area of the seat remains uncut. This gives a more aesthetically pleasing line to the edge of the seat making it easier to slide in and out of the car. Therefore, if you have the space, we recommend using this model.

If you do not have the space the B9-43 is needed. We call this specification the “edges off” option. These have the rolled edges at the leg area carefully removed to fit the seat between the gearbox tunnel and the door sill of a restricted width cockpit. As an example, this trimmed back option is required to fit the B9 in a Lotus Elise/Exige.

Available with no seat inserts, black suede inserts, or silver diamond stitched inserts.




  • Incredibly light at 3.2 kg (weights of seats can vary by 10%).
  • Main material Carbon epoxy.
  • Mostly used in saloon cars such as Nissan GTR or Porsche.
  • For Lotus Elise/Exige, the “edges off” B9-43 will need to be used.
  • Swept away hip area allows for either a standard 3-point seat belt, or full racing harness (5 or 6 point is recommended).
  • 20° Hans device compatible.
  • Body mirroring shape.
  • Rigid twin moulding construction adds to the safety and gives the driver unhindered support, and superb feedback.
  • Two edge cut options for reducing external widths across the leg area, “edges on” 44.5cm or “edges off” at 43cm. See images for visual understanding.
  • The B9 has four integrated fixing positions, using the same specifications as our high strength FIA approved seats.
  • Manufactured using Tillett Racing Seats specialist in house moulding system to create strength and accuracy along with a moulding which is astonishingly light.
  • Does not require padding making it a great option for ultimate feedback from the car, essential for a competition seat and ideal if the car interior is open to the elements.
  • Uncovered as standard (see additional covered panel option if required below) A panel set will add approximately 1kg.
  • Dinamica® covered headrest panel included as standard.
  • All Tillett car seats are premium quality products designed and manufactured in the United Kingdom.


  • EBP Bracket set
  • EBR Bracket Set
  • EBS Bracket Set
  • STBO Bracket Set
  • TEMIRA01 bracket kit

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