Review on SCHWALBE G-One Allround Gravel Tubeless Folding Bicycle Tire, 27.5 x 1.5, Evolution Line, MicroSkin, Black by Neil Bodell

Verified after 100 miles mixed gravel and rail. These aren't bad tires at the moment - grip in the dirt/dirt is decent and they have fairly low rolling resistance on tarmac. I use the 650B version on a Cannondale Slate tablet. They install tubeless the first time and hold air well. However, these are the most durable tires I have ever mounted in my life. I have mounted many bikes and many tires. I always thought Kurt's green practice tire would be the top of Broken Tire Lever Mountain, but these are absolutely undeniable. I mounted them on Mavic and Easton rims and oh my god what patience! I really hope that after a few kilometers they will loosen up, because at the moment I take 3-4 tire levers with me as a precaution. Much luck!