Just A User said:I checked sheldons site and didn't readily see the answer to my
question. I have a bit of a tire replacing problem. The tire that was on
the bike was labeled 26 x 1.5 the tire (used) I am trying to mount is 26
x 1.95 with a wire bead. I worked at getting that tire on the rim for
over an hour so far with no luck, it seems like it's to small, the wire
bead can't be stretched enough to get it all the way on the rim. Is
there something I am missing here, or is there a special trick to
getting the tire on the rim.
First, look for a metric tire size designation on your old tire.
Standard decimal series, ISO 559, all interchange regardless of width.
Some uncommon series found on some older bikes are poorly labeled (
mid-80s 650B/584 and the ill-starred '700D'😉. Do note than a tire marked
26 x 1-1/2 is _not_ equivalent to a 26 x 1.5! AFAIK 559 series, your new
tire, are the smallest 26-inch tires so just about any other '26 inch'
rim will be impossible.
Then consider mounting technique. Ensure the rim liner does cover the
spoke nipples or cover the spoke holes and does not occlude the tire
bead seat ( the lip of a larger diameter than the center section).
Inflate the tube until just round in cross section, fit inside tire,
mount one tire side, push the tube in place, mount second tire side. Use
hands only for mounting. If you need a tool, something isn't right. The
tool itself can easily pierce or pinch a tube as it is pressing in
rather than pulling out.
--
Andrew Muzi
www.yellowjersey.org
Open every day since 1 April, 1971