I have done about 10 hours of walking in the last couple of days, with my tyre socks on, loving taken from my old mountain bike, no sign of wear, and it helps me to keep grip on all surfaces, i got about enough to change each sock twice!!! Good old 26" wheels, may try for 3 changes per sock next time, with my other wheel, and use the inner tube for putting underneath mu jubilee clip, to create a larger amount of pressure to hold my tyre socks on!!! How many jubilee clips do people use per tyre sock? as I use 2 clips per sock, for assurance that the sock will stay on!!!