The T9.5 shape was made for taller drivers. It has a 48° reclined back, allowing drivers with taller torsos to position themselves lower in the kart.
The T9.5 shape is another model made using Tillett’s special manufacturing technique; this is shown by its smooth surface front and back.
Why Fit Matters
A proper fit is essential for driver protection and kart handling. A loose seat causes the driver to pull when steering, lifting themselves from the kart and creating instability.
Assessing Fit With a Seat
With rib protection worn, sit in the seat and check the gap at the leg bone, hip bone, and along the ribs. The rib protector shouldn’t compress inward when seated. You should barely fit your fingers between your body and the seat at any point. Pressure should be even throughout – nothing loose or pinching. Firm foam can correct minor looseness; pinching requires a different size.
Assessing Fit Without a Seat
Jeans waist size, weight, height, and chest circumference are reliable indicators. Note your rib protector type – thicker models can require up to two sizes larger and leave hips loose. Consider a slimmer protector or our WT (wide top) T11 seat to compensate.
Fitting the Seat
Half the kart’s weight shifted 5mm will affect balance. Average seat positions have moved roughly 3cm rearward since the late nineties. See our fitting guide PDF for detailed instructions.
Kart seat positioning 2025
Kart seat dimensions 2024
CHOOSING YOUR NEW KART SEAT NEW 2025
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