Originally Posted by
jefnvk
I sure can. Standard 700x28-32 Forte from Performance, in a 27x1-1/4 Pasela. Nothing notable about the tire, nothing visibally wrong and I ran my finger around on the inside when the tube came out to make sure nothing was in there. Tire did not come off the rim. Replacement tube functioned just fine for the remaining 25 miles.
I'll check out if is just a mold mark when I get home, I just assumed it was a seam because it followed that line perfectly.
What is the proper procedure to ensure the tire does not pinch the tube? I put one side of the tire on, tube in, pump it just enough so it is round and not folded over on itself, put the other side of the tire on, feel it to make sure it is firm and consistent, then pump it up.
Thanks for this.
It clearly failed along what is either a seam or mold mark. My guess is that it is a seam. I would not use these brand tubes any longer but would switch to something known to be seamless. Continental tubes are seamless. I'm sure there are others.
I get the tire onto the rim, inflate the tube just enough to get it up into the tire and then let enough air out to be able to push the tire bead away from the rim and look down at the rim bed. Go around the whole circumference of the wheel, both sides, looking to see if the tube is between the rim and tire bead.
A flourescent or brightly colored rim tape helps, especially in low light on the side of the road. It takes a little extra time but I've never had a flat because of improperly installed tube since starting to do this many years ago.