If you are doing any rolling tests to check how hubs or spoke count or rim shape etc, then you need to be using exactly the same tyres and tubes as identical tyre pressures otherwise the test is pointless and proves nothing as the various tyre factors have a way bigger effect.
If you are doing any rolling tests to check how hubs or spoke count or rim shape etc, then you need to be using exactly the same tyres and tubes as identical tyre pressures otherwise the test is pointless and proves nothing as the various tyre factors have a way bigger effect.