rear wheel always flat

harry palmer said:

Ok I weigh 240 lb BUT I see people much heavier than me riding around
and their rear tire isn't as flat as mine. I made sure it was fully
inflated before the Chicago bike the drive this morning BUT it still
was flat. Other than my weight is there any other reason?

There are a few variables/posibilities to consider:

What pressure are you running?

What width is the tire?

Is the inner tube definitely good (no slow puncture/leaky valve)? Dip test
it, or swap it to be sure..

Are you definitely not just imagining it?

--
Mark

"harry palmer" <[email hidden]> wrote in message
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Quoted message said:

Ok I weigh 240 lb BUT I see people much heavier than me riding around and
their rear tire isn't as flat as mine. I made sure it was fully inflated
before the Chicago bike the drive this morning BUT it still was flat.

Other

Quoted message said:

than my weight is there any other reason?

--
Stand firm in your refusal to remain conscious during algebra. In real

life,

Quoted message said:

I assure you, there is no such thing as algebra.

Dude.......The pressure on the side is more of a guideline. Run enough to
get your rim off the trail. Or purchase some higer air volume tires. A 2.3
or 2.5 for a big guy is a good thing.

Sheeesh....

TJ.
www.gvii.net/hundtoft

"TJ" <[email hidden]> wrote in message
news:[email hidden]...

Quoted message said:

"harry palmer" <[email hidden]> wrote in message
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Quoted message said:

Ok I weigh 240 lb BUT I see people much heavier than me riding around

and

Quoted message said:

Quoted message said:

their rear tire isn't as flat as mine. I made sure it was fully inflated
before the Chicago bike the drive this morning BUT it still was flat.

Other

Quoted message said:

than my weight is there any other reason?

--
Stand firm in your refusal to remain conscious during algebra. In real

life,

Quoted message said:

I assure you, there is no such thing as algebra.

Dude.......The pressure on the side is more of a guideline. Run enough to
get your rim off the trail. Or purchase some higer air volume tires. A

2.3

Quoted message said:

or 2.5 for a big guy is a good thing.

Sheeesh....

TJ.
www.gvii.net/hundtoft

thanks Tj I'll check out the 2.5's good advice. Happy holiday

"Mark (UK)" <[email hidden]> wrote in message
news:[email hidden]...

Quoted message said:

harry palmer said:

Ok I weigh 240 lb BUT I see people much heavier than me riding around
and their rear tire isn't as flat as mine. I made sure it was fully
inflated before the Chicago bike the drive this morning BUT it still
was flat. Other than my weight is there any other reason?

There are a few variables/posibilities to consider:

What pressure are you running?

What width is the tire?

Is the inner tube definitely good (no slow puncture/leaky valve)? Dip test
it, or swap it to be sure..

Are you definitely not just imagining it?

--
Mark

Hey Mark

no clue as to pressure but the tire is rock solid. Tire is 2.0 wide I put
in a new tube before the ride AND dip tested it. No my @#cking friends
photographed it :-)

"harry palmer" <[email hidden]> wrote in message
news:[email hidden]...

Quoted message said:

Ok I weigh 240 lb BUT I see people much heavier than me riding around and
their rear tire isn't as flat as mine. I made sure it was fully inflated
before the Chicago bike the drive this morning BUT it still was flat.

Other

Quoted message said:

than my weight is there any other reason?

--
Stand firm in your refusal to remain conscious during algebra. In real

life,

Quoted message said:

I assure you, there is no such thing as algebra.

Should be at least 40lbs pressure or more at your weight. Do you have a
rubber liner to protect the tube from the spoke nuts? Hvae you checked the
inside of the rim and the spoke nuts for burrs? Have you checked the tire
for something sharp sticking thru it? Have you inserted the tube carefully
so it doesn't pinch when its inflated, have you replaced the tube lately?
Have you tightened the valve? Is the valve clean and protected by a cap when
you're riding? I don't believe in messing around with tubes. On the trail I
will patch them (I don't like carrying extra tubes around just in case). But
when I get home I replace them.

There's always a reason, you have to be a detective.

Sniffinvinyl
----------------
Remain sane, cycle your brains out . . .

harry palmer said:

no clue as to pressure but the tire is rock solid. Tire is 2.0 wide I put
in a new tube before the ride AND dip tested it. No my @#cking friends
photographed it :-)

You might want to mention what tubes, tire and rims you're running. Some
wheels are more prone to pinch flats than others.

BTW, are you actually getting holes in your tubes or is the air just
leaching out? There are two different types of materials (mainly) used
to manf inner tubes. One of them is known to leak air (naturally) more
than the other.

I forget which is which, but I have some tubes in one of my bikes that
usually needs a little air after a ride depending how hard I ride, but
it doesn't have any holes.

Just found a link: http://www.cycleweb.co.uk/q&a/inner.htm

--
Slacker