Posted for "George Shattuck" <kloop@plantationcable.net>:

 Dan,
 
 In seconding what Scott Krueger wrote, I think your problem is caused by low
inflation pressures and not the tire and or tube.
 
 I have been buying/using the Chen Sheng (?) tires/tubes from Lancair since
day one, 1994.  Last week I replaced my tires with new and used the same
tubes.  The tires and tubes had been on my airplane for about 2 1/2 years and
233.6 flight hours.  I had one flat a few years ago, after parking the thing
just went flat.  The leak was in the side of the tube and resulted from
flexing due to low pressures.  I had been inflating to 38 to 40 pounds. I have
now always kept my tires (mains) inflated to 48 plus pounds and have had no
further problems.  I keep my nose tire a bit lower, at about 40 pounds.
 
 I replaced my brake pads last week also.  They had been installed since
February, 2001 and 439.9 hours.
 
 Hope this helps.
 
 George Shattuck
 N320GS