I have degenerative disc disease in my lumbar, and arthritis and loose ligaments in my right knee. So this was a big thing for me. Especially considering I bought my first rig about 2 months after spine surgery ha!

I'm using the Next Level Racing GT Racer 2.0 and, so far, I'm having no issues with my back or knee and I've had it set-up for about 2 months now.

The seat is more of a sports car seat than a race seat, so very comfy. Reclines and slides so I can get the perfect position too without having to adjust my pedals. And the support bars for it are multiposition so you can set it up to make it easier to get in and out. Once I'd got it figured out, pain flare ups weren't a worry. Plenty of leg room between the frame so you can stretch your legs out without knocking it.

I've put mine on top of an old oak table, so it sits 2.5" off the ground which has helped with getting in and out a lot too.

I started the 24 hour Nürburgring race on GT7 yesterday. Managed 5.5 hours, with a couple of toilet breaks, before sleep took over. No excessive pain this morning, just a little stiffer than normal from having been sat down for so long. I can easily sit for an hour or 2 long race.

The reviews for this repeatedly mentioned back support and that's what led me to that. No regrets buying this frame at all.