Bon par contre Yacco, t'as pas des attaches ceinture de NB en rab?

Superbe
Ca ne pose pas de problème de ne pas pouvoir régler l'inclinaison au quotidien ?

Hello,

I have recently brought a pair of Lotus Elise Probax seats. I am really impressed with the comfort so far, I would love to have the same comfort level from my office chair ...

The seats came off a Lotus Elise, but have been installed in a Mazda MX5 with specific brackets.
Looking up your website, I came to realise that the angle of installation of the seat may be very important to fully benefit of the seat comfort.

Can you please tell me at what reclining angle the seat should be installed ?
The attached illustration (from internet) may help you in answering. According to owner of the car, driver seat is currently at 84°, whereas the passenger seat is at 74°.

Many thanks for your e-mail, your interest in ProBax and your kind comments on the comfort of the ProBax seats. You are not the first person to enquire about putting proBax seats into an MX-5 – but you are certainly the first to make such a specific enquiry as to how exactly they should be fitted !

The design angle for the seat as installed in the Elise gives a reference torso recline angle of 31.5° (measured from the vertical) However, this is not an easy angle to measure on a trimmed seat when installed in the vehicle.

Easier to check is the angle of the very top section of the seat in the head rest area, which may be accurately measured form the rear of the GRP seat shell moulding. As designed, this portion of the seat goes beyond vertical i.e. actually leaning forward towards the windscreen at +3.5° to the vertical, or 93.5° measured from the horizontal plane. Many seats are set by owners to make this upper area of the seat precisely vertical however.

Unfortunately, I do not have information available on the design angle used for Mazda for the MX-5 seat so cannot comment on how the original and ex-Lotus ProBax seats will compare.

The angle of the seat within a sensible range of normal adjustment does not have a significant effect on comfort, since the seated posture created by the ProBax seat places the seat user on the two bony projections from the base of the pelvis (the ischial tuberosities) and hence able to pivot to any angle without adjusting his or her main torso position. The caveat here for the fixed shell of the Lotus seat is obviously that if the recline angle becomes too great – and hence the height of the front of the cushion section of the seat too high – this may start to create an unacceptably high pressure point under the thighs, but then you would not set the seat up like that anyway.

I hope the above information is helpful to you but should you require anything further please let me know.

That is an amazing answer to your question. May I publish it on my blog? That sort of information needs to be shared.

So, where Sharka is parked right now, the door sills are 6 degrees from horizontal. Adding the 84 degree seat measurement gives me about 90*. That's amazingly close to their 93* optimal measurement. It feels great too. The passenger seat with the 10 degree lean back is still comfortable, but not quite as supportive. Being closer to the correct spec really makes a difference for driving.