Okay, time for a rare nuts-and-bolts question/issue. I just trashed a tube yesterday on my sport bike. It's a 700C Mavic "aero" rim (sidewalls "taper" down to the spoke holes), presta, ca. 1996 (don't know the exact model). The tube is, IIRC, a 700x25. I went to pump it up and the valve just ripped loose from the rest of the tube.
This is pure conjecture, but I'm thinking that, this being an aero rim, when the tube is under pressure, the valve is being pushed "down" into the depth of the valve hole, and straining the point where the valve is fused to the tube. I've tried just not tightening the valve nut as far, but it seems that the pressure just wants to make the valve protrude further anyway. Are there tubes made 'specially for these kind of rims? Is there a smaller nut I can put on the valve on the other side of the rim, to limit how far the valve protrudes? Any ideas, before I trash another perfectly good tube? -------------------------------------------------------------------- mail2web - Check your email from the web at http://mail2web.com/ . _______________________________________________ Bikies mailing list [EMAIL PROTECTED] http://www.danenet.org/mailman/listinfo/bikies
