[Healeys] tires - tube or tubeless

[Roland Wilhelmy]

Back in the '50s and '60s  Air cooled VWs went through a change from
tube to tubeless.  At least on VWs, the difference was in the rims,
not the tires' beads.  The idea was that under low tire pressure and
high cornering force conditions, a tubeless tir's bead, without a
tube, would slip inwards on the rim and release all of the air.
Therefore there was a "bump" that held the bead and the tire's seal
under low pressure cornering conditions.

Yes, maybe different companies "re- invented the wheel " differently
but I am prepared to look on the rims rather than the beads for
anything adapting the tube type to the tubeless,  and perhaps the
whole thing was theoretically true but in reality wasn't needed.  In
my experience on VWs, if you put tubeless tires on old tube type rims,
they worked fine.

-Roland.



On Sun, 8 Jul 2012 14:14:58 -0700, Richard E. wrote:

::Oh there is no doubt that the bead on a tubeless tire is different than the
::bead on a tube type tire.
::My beef with the Wiki article is that it says ridges as in more than one or
in
::other words multiple ridges.
::As I said before Ruffles have ridges tubeless tires don't.
::
::Sent from my iPhone
::
::On Jul 8, 2012, at 11:47, john spaur <jmsdarch at sbcglobal.net> wrote:
::
::> John wandered over to a local tire store and looked at several tubeless
::tires. They all had a single small ridge along the outer edge of the tire
bead
::(at the bead heel). He then mosied on home to check his tube tires. There
was
::no bead.
::>
::> This is a picture of a multi bead tubeless tire.
::>
::> http://www.atvpt.com/jodystirereviews.htm