Lotus Seven bucket seat guide
Series 1 to 4, 1957 to 1972
In a seven-style car, space is the constraint and the rear bulkhead is what a seat is fighting. The Cobra Roadster 7 range is shaped to use the angle of that bulkhead rather than sit square against it, which is why a general purpose bucket rarely works in these cars.
Caterham continued the Seven design largely unchanged after taking it over from Lotus in 1973, but suppliers still treat the two as distinct fitments for some parts. Confirm your car before ordering a harness.
- The Cobra Roadster 7 range is a narrow-fit shell shaped for seven-style cars generally, at a 400mm base width
- The Lotus 7 specific version and the general Roadster 7 shell share the same underlying seat, the difference is the fitment listing
- Caterham-branded harnesses are the closest match for a Lotus Seven, but confirm with us before ordering: Cobra list Lotus 7 and Caterham as separate SKUs for the same seat, which shows suppliers do not treat the two chassis as automatically identical
- Harness slot seats in this range are 4-point compatible
- Harnesses above 3-point need a roll cage or a properly engineered harness bar
What is on this page
Bucket seats
The Cobra Roadster 7 at £474.17 is the standard narrow-fit shell, also listed with Lotus 7-specific fitment at the same price. The Signature at £639.00 is the same seat in an upgraded finish.
For harness slots built in, the Sport Signature at £719.00, the Sport Turbo at £743.00, and the Sport Turbo Signature at £784.00 are all 4-point compatible.
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From £569.00 Incl. VATPayPal CreditKlarna ReadySelect options This product has multiple variants. The options may be chosen on the product page
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From £639.00 Incl. VATPayPal CreditKlarna ReadySelect options This product has multiple variants. The options may be chosen on the product page
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From £719.00 Incl. VATPayPal CreditKlarna ReadySelect options This product has multiple variants. The options may be chosen on the product page
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From £743.00 Incl. VATPayPal CreditKlarna ReadySelect options This product has multiple variants. The options may be chosen on the product page
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Bucket seats for the SevenWhich bucket seat for a Lotus Seven
The Cobra Roadster 7 at £474.17 is the sensible starting point, a narrow shell shaped specifically for this style of cockpit. If you are fitting a 4-point harness, the Sport Turbo at £743.00 has the slots built in rather than needing them added. The Signature finishes are the same seats underneath, so choose them for the trim rather than expecting different support.
Harnesses
Confirm before orderingThese harnesses are built for the Caterham 7 range. Caterham continued the Seven design largely unchanged after 1973, but Cobra list Lotus 7 and Caterham as separate SKUs for the same seat shell, which shows suppliers do not treat the two as automatically identical. Confirm fitment with us before ordering.
The TRS Caterham 4 Point Road Harness at £102.00 is the accessible starting point, with shoulder straps sewn to length to avoid unnecessary adjusters in a tight cockpit. The TRS Pro Caterham 6 Point at £238.80 and Magnum 4 Point FIA at £246.00 step up for competition use.
The Willans Silverstone 4×4 Caterham FIA harness at £351.50 and the Schroth Caterham II ASM 4 Point at £378.37 are the premium options, the Schroth featuring anti-submarining technology.
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From £102.00 Incl. VATPayPal CreditAmazing valueSelect options This product has multiple variants. The options may be chosen on the product page
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From £238.80 Incl. VATPayPal CreditAmazing valueSelect options This product has multiple variants. The options may be chosen on the product page
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From £246.00 Incl. VATPayPal CreditAmazing valueSelect options This product has multiple variants. The options may be chosen on the product page
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From £351.50 Incl. VATPayPal CreditKlarna ReadySelect options This product has multiple variants. The options may be chosen on the product page
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From £378.37 Incl. VATPayPal CreditKlarna ReadySelect options This product has multiple variants. The options may be chosen on the product page
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Harnesses for the SevenWhich harness for a Lotus Seven
The TRS Caterham 4 Point Road Harness at £102.00 is the straightforward road choice. For competition use, the TRS Pro Caterham 6 Point at £238.80 is the practical option, with the Schroth Caterham II ASM at £378.37 as the premium choice if you want anti-submarining technology built in.
What fits
Mounting for every part in this guide.
| Product | Fitment | Notes |
|---|---|---|
| Cobra Roadster 7 (all versions) | Seven-style cars, base mount | 400mm base. |
| TRS Caterham harnesses | Caterham-fit, confirm before ordering | |
| Schroth Caterham II ASM | Caterham-fit, confirm before ordering | ASM anti-submarining. |
| Willans Silverstone 4x4 Caterham | Caterham-fit, confirm before ordering | FIA, 3" shoulder, 2" lap. |
Common questions
Will a Caterham harness fit my original Lotus Seven?
Very likely, since Caterham continued the same basic chassis, but confirm with us first. Suppliers list Lotus 7 and Caterham as separate SKUs for some parts, so it is worth checking rather than assuming.
Do I need the Lotus 7 specific seat listing or the general Roadster 7?
They are the same seat underneath. The Lotus 7 listing and the general seven-style listing both fit a Lotus Seven; choose whichever is listed correctly for your build.
Can I run a 6-point harness without a roll cage?
No. A 6-point harness needs anchor points above and behind the seat for the shoulder straps. Fit a roll cage or a properly engineered harness bar first.
Which seat should I choose if I am fitting a harness?
The Sport Turbo or Sport Signature versions have harness slots built in, which saves adding them yourself.
More help
Confirm your car before ordering a harness. Cameron works through the seat, harness and car combination together.
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