I’d suggest more like 1 or 2psi for the flexiest noodliest ti frame, but then I’m not a believer.
😆
Sounds like a Titanium frame is a bit of a Placebo then- you tell yourself that it’s better, so it MUST be better.
It’s not a Placebo, it’s just it’s a VERY small return, for a heck of a lot of cash!
I’ve ridden a number of Ti frames over the years, some have been so flexy (making too much use of Ti’s inherent elasticity) that they were not nice to ride. The best ones I’ve ridden have all been noticably stiffer though, although with a very slight muted feeling to the ride when compared to an ally or a steel frame. I have what I consider a very good example of a Ti frame myself, and have owned it for a couple of years, but I got it 2nd hand for a bargain price, and the frame is very nearly as stiff as its steel counterpart that it replaced (was an important consideration). It feels a bit like the difference between running tubeless and tubed tyres though, it’s not night and day, it’s just a very subtle improvement to the ride feel.
Oh, and a Ti frame will generally be 30-35% lighter like for like than its steel equivalent. But it’s a big price to pay, even I’ll admit!