thank you
thank you
The tension drop is significant in the sense that it can easily be measured.
Measuring spoke tension before and after, this is not my finding at all, after going to normal tension w/o the tire, it is not safe to ride due to the tension drop. I also have to wonder if a lot of "re-truing" and "wind-up" issues are related to this. This is something that seems to be more prevalent on modern rims IME, comparing with older aluminum 26" ones that I built over the years. I have built with CF on something like 18 out of 19 wheels recently, so that's the majority of my experience.The tension drop is significant in the sense that it can easily be measured.
It's not common practice to put a tire on and off whilst wheel building.
Manufacturer recommendations are made for a wheel without a tire on it.
Equal tension is way more important that maxing out on the tension. Chances are that you over-tension when adjusting for the tire pressure. Is it relevant and cause any danger? Probably not, but I'm not a rim engineer
Not safe to ride? Could you back this up a little more?
It doesn't outright collapse, but so much detensioning that it causes excessive stress on the "hanging" spokes and throws the wheel pretty far out of true IME. I do see a safety concern, I've measured significantly more "detensioning" than that and given the way wheels work, spokes in tension, this would concentrate stress quickly and could lead to breakages IMO. The absolute worst case could be a collapse, but you'd probably break spoeks long before that. I never saw or noticed this with older wheels...but every single new one I make, yep. My theory is that modern tubeless tires are much tighter on the bead when inflated, rather than older tires that sat on the bead, but weren't relying on it to make a seal. You do you though, I'm just relaying my experience building and riding/racing on my wheels.
You keep doing you.
Safety concerns should be voiced by people who have done quantitative engineering of the problem, not by people who guess.
I don't know what you notice in newer an older wheels, but the tire-rim interface has not much to do with the compression of the rim. The width (or area) of the interface, in particular in modern wide rims, is very small compared to the overall width. That is by far more rim compression load is generated by the air pressure that acts directly on the rim tape.
Like I said, you do you. I've built many wheels and raced them and don't seem to have a problem with wheel builds, so I'm confident that my methods work just fine.
Who hasn't built their own wheels and raced them on MTBR?
