Originally Posted by
koenbro
Yeah, it's possible I drew the wrong conclusion. I run 44mm tires, set them up tubeless, and inflate them to 50 psi in the back and 40-45psi in the front. I thought high volume is what I need over pressure. Will see.
At up to 50 psi, you probably made the right choice. I assumed on a 520 you would be running narrower tires, but your pressures probably favor the high volume pump better. If I had a 520, I would probably be putting 80 psi in the rear, 60 in the front on 32mm tires.
You said tubeless, does that mean you have removable presta valve cores? If so, you should tighten them enough so that the valve core does not stay in the pump chuck when you take the pump off of the tire. And part of that is avoiding threading the chuck onto the valve stem too tightly. I have used a thread locker like Loctite on the threads on some of my removable core presta valve stems, but if you try that be very careful to avoid getting any thread locker in the check valve, as that might prevent the valve from seating firmly.