That’s a good question! He’s published his test protocol[1] so I guess the tests could be repeated for verification. I don’t think that’s happened yet though

That’s a good question! He’s published his test protocol[1] so I guess the tests could be repeated for verification. I don’t think that’s happened yet though or much other peer review either. The guy running the site launched it as a personal project in the absence of all independent test data except for manufacturer’s claims (and they all claim to be the best). It’s also worth noting that the fastest tyres in test might not necessarily be fastest in use. Eg stiffer mtb tyre might roll slower but give more support when going hard downhill. He’s pretty up front about his test being quite specific and designed for repeatability. 1. https://www.bicyclerollingresistance.com/the-test https://www.bicyclerollingresistance.com/the-test