Nice riding tire, very subtle and really tames road vibration. I ran these with a tube for one day before setting up tubeless. They were easy to install and easier than my previous GP 5000's to install with a tube and at 50psi the ride was very nice and the tires performed excellently. The next day I set these up tubeless with my Bontrager rims using Bontragers TLR system and sealant. The bontrager rim strips took away enough room to make the installation a total bear because the tire was very hard to get on. Perhaps rim tape may have been easier due to more rim depth. Once on the rims the tires popped the bead using 80 psi of pressure. I never noticed any sealant leaks and no weeping through the sidewalls. The ride quality is excellent and they grip the road nicely and performed nicely on a mixture of terrain. Unfortunately the tires will not hold pressure overnight. Each day they drop to 20 psi or less. No sealant has been noticed nor any air bubbles so I'm just guessing these tires don't hold air efficiently when set up tubeless. Disappointed considering how well the tires ride on my Trek Domane. I'm 6-1 tall and 200 lbs. I have to run these tires at 50 psi in the rear and about 45 psi in the front.