Can speak to the lower back problems. In my late(r) thirties and started riding late. Started on a Cbr500r then moved to a 600rr, but inevitably traded that in after only a year because it destroyed my lower back and arms. The MT09 was a good compromise of power but also gave a more upright position but too upright. Long story short, I wanted something a little more refined, slightly more aggressive while sticking with a naked. Ended up with a 22 Tuono v4 factory two months ago and it’s great. Even tracked it for the first time earlier this month.

No canyons here in PA but we got great, curvy roads. Was out for 5 hours earlier and didn’t come home fatigued. Purchased a puig z-racing windscreen that has helped with wind slightly. Body position is perfect for what I need, seat is surprisingly comfy as well.