Man oh man these were a pain to mount on the tires. Spent almost 2 hrs on the very first one, but after I got the hang of it I was able to get them on/off in about 10 mins.
The problem I'm having is that once they are mounted, I can't seem to inflate the tube anywhere near the max pressure (95 psi according to the sidewall) without the tube exploding. I just blew up 3 different tubes trying to get these inflated.
I can't understand what is going on - at first I thought I had not seated the tube properly. So I tried it again and again (taking extra care to ensure that the tube and tire were seated properly) but then I had the next 2 tubes pop on me. With my last spare tube, I finally found a pressure that would not cause the tube to explode (65 psi, just above the 60 psi minimum). However - I soon discovered that I had mounted the tires backwards (there is a direction arrow on the sidewall) . So I went through the dismount/mount process again for the 4th or 5th time but then I tore part of the tube in the process .
I am running 700x32 tires, btw. My previous tire (Vittoria Randonneur) was also 700x32 and the max pressure was 75 psi - I was always able to run it at 75 psi or 85 psi with zero problems whatsoever.
Has anyone else experienced this phenomenon - not being able to inflate Marathon Pluses to the same pressure as other tires? When I use the floor pump to inflate the tube with the Marathon Plus on the tire, it just feels very very tight as soon as I get to around 50 or 60 psi. Does the extra thickness of the tire create more pressure on the tube or something?