MK RX-5 Bucket Seat Guide
The MK RX-5 140/250/VTEC story
MK Sportscars is a British kit car manufacturer founded in the late 1990s, well known for lightweight, Lotus Seven-inspired roadsters. Their focus has always been on producing affordable, high-performance cars that combine low weight with strong handling.
Once you start using your MK RX-5 for fast road and track use, you’ll soon realize just how much you need new bucket seats to provide more support.Â
On cornering, you may find your self holding onto the steering wheel tighter than usual, tensing your thighs and legs against the central console and/or door card. You’ll probably find your weight shifting in the seat and having to re-position your self after the corner.Â
None of this is correct. Your seat should provide the right level of support so that you can grip the steering wheel only for steering, your legs should be supported and your weight shouldn’t shift around. The recommendations we provide are to ensure that you feel comfortable and supported allowing you to focus on the job at hand.Â
Fitting Equipment for the MK RX-5
When it comes to installing aftermarket seats in the MK RX-5, it’s important to note that there are no vehicle-specific subframes available. Unlike more common performance cars where ready-made subframes exist, the RX-5 requires a more custom approach.
o fit seats such as the Cobra Roadster or Tillett bare shell bucket seats, a fabricated frame will be needed. This frame must be built to line up with the factory bolt holes on the floor of the RX-5 while providing a secure mounting point for the seat. The compact interior space also means accuracy is crucial — the frame has to ensure the seat sits low enough for headroom while still keeping the correct driving position.
Owners looking to upgrade their seating should be prepared for this level of customisation, as it’s the only reliable way to install aftermarket seats while maintaining both safety and comfort inside the MK RX-5.
Seat Options for the MK RX-5
Due to the extremely limited interior space inside the MK RX-5, only the smallest aftermarket bucket seats are suitable for installation. Larger framed or FIA-homologated seats will not physically fit within the tight cockpit dimensions.
The best-fit solutions we offer are the Cobra Roadster seats and the Tillett bare shell bucket seats. The Cobra Roadster 7 Sport Turbo (available in both Narrow Fit and Signature Narrow Fit versions) has been designed specifically for lightweight sports cars with compact interiors, making it a natural choice for the RX-5.
For those seeking the lightest and most compact option, the Tillett bare shell bucket seats provide an excellent fit. Their slim profile and minimalist shell design allow them to work in applications where space is at a premium, such as the RX-5.
If you are planning an interior upgrade, it’s important to note that only narrow bucket seats and bare shell designs will fit. Wider or more heavily padded seats are not compatible with the chassis and interior layout of the RX-5.
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Recommended harness belts:
To complement these seating options, we recommend fitting Westfield harness belts. These harnesses are particularly well-suited to cars like the RX-5 because they feature shorter shoulder webbing, making them easier to install and ensuring a more secure fit inside small cockpits. This shorter design avoids excess slack, improves comfort, and enhances safety when paired with compact bucket seats such as the Cobra Roadster or Tillett bare shell range.
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