Originally Posted by
Rides4Beer
I'm new to gravel and tubeless, but just ran my 40mm Giant Crosscuts at 40psi front/50psi rear and they performed great! Had no issues at all on a ride that was mostly gravel, some singletrack, bit of wet sand/mud, and some pavement where I had no problems holding 20+mph. Absolutely loving the tubeless, comfort and handling/traction were great.
Those pressures are a bit high for a 40mm tubeless tire. Might want to drop to, say, 35f/40r and see how it feels.
For what it's worth, I've run my 37mm tires as low as 25f/28r. At that pressure, the rear tire gets a little squirmy through corners, but still feels pretty fast.