On Jun 8, 8:50*pm, "Tim M." <tomorrowaterolsdot...@yahoo.com> wrote:
> On Jun 8, 1:15*pm, "?" <breoganmacbr...@yahoo.com> wrote:
> > Has anybody ever been in a situation where they were tempted to
> > *reduce* air pressure in their tires for comfort during a ride?

> You do realize that you can reduce your tire pressure to 36psi after
> it has risen to 40psi, right?

Of course I realize that I can reduce tire pressure when it's hot and
has risen.

However, doing so defies the "conventional wisdom" of decades of
published advice to the contrary.

> You do know that different tire guages give different readings, right? * And
> you have checked yours to see that it is not reading 10 or 15% low, which
> is very common, and could mean that you are riding around with 44-46 psi
> in your rear tire once it comes up to operating temperature, right?

Whatever a pencil type air pressure gauge reads is just a reference
point and a rider should treat it as a personal accessory like his
favorite tooth brush.

But I did buy two extra tire gauges and compared their readings to the
one I already had. I kept the two gauges that agreed with each other
and threw away the one that read too high.

> Softtail suspension is notorious for its short travel, harsh spring
> rates, and poor damping. *

So maybe the more flexible sidewalls of their balloon tires make for a
more comfortable ride?

> I suspect that they simply are much more accomplished, capable,
> comfortable riders than you are.

Quien sabe? I still got back to Cowpoop City before them, because they
stopped and milled around like a confused convoy twice in twenty
miles.

> > I wonder how much air pressure Texas Harley riders use in their back
> > tires, during hot weather.
>
> Why would you wonder that? *

Because it gets even *hotter* in Texas during the summer than it gets
here.

On Jun 8, 11:15*pm, totallydeadmail...@yahoo.co.uk (Tinkerbell) wrote:

> There's also a reason why tyre and bike manufacturers recommend checking
> tyre pressures when cold. It's because they *know* that the pressure
> increases as the tyres warm up, and factor that it.

And I suspect that the daily temperature variations in Japan are far
less extreme than they are here in California's central valley, where
the temperature might change over a range of 60 degrees F in six or
seven hours.

So the advice in a Japanese owners manual might reflect less extreme
conditions.

On Jun 8, 11:20*pm, Eiron <E1...@hotmail.com> wrote:

> Fill your tyres with nitrogen.
> The pressure will not increase so much as they heat up.

The reason for using nitrogen to inflate tires is that it is a *dry*
gas and the pressure won't increase so much due to the vaporization of
*water* when the tires get *really* hot.

The first time I ever saw nitrogen used to inflate tires was in an
aircraft tire shop.

Aircraft tires get so hot during landings they are an explosion hazard
to ground crew placing wheel chock once the aircraft is parking.

? <(E-Mail Removed)> wrote:

> On Jun 8, 11:15 pm, totallydeadmail...@yahoo.co.uk (Tinkerbell) wrote:
>
> > There's also a reason why tyre and bike manufacturers recommend checking
> > tyre pressures when cold. It's because they *know* that the pressure
> > increases as the tyres warm up, and factor that it.
>
> And I suspect that the daily temperature variations in Japan are far
> less extreme than they are here in California's central valley, where
> the temperature might change over a range of 60 degrees F in six or
> seven hours.
>
> So the advice in a Japanese owners manual might reflect less extreme
> conditions.

****, but you're stupid. Let's see if you can recognise the bleedin'
obvious, shall we.

<fx: Counts>

One, two, three......


--
BMW K1100LT Ducati 750SS Honda CB400F Triumph Street Triple
Suzuki TS250ER GN250 Damn, back to six bikes!
Try Googling before asking a damn silly question.
chateau dot murray at idnet dot com

On Jun 9, 10:06*am, totallydeadmail...@yahoo.co.uk (The Older
Gentleman) wrote:
> ? <breoganmacbr...@yahoo.com> wrote:
> > On Jun 8, 11:15 pm, totallydeadmail...@yahoo.co.uk (Tinkerbell) wrote:
>
> > > There's also a reason why tyre and bike manufacturers recommend checking
> > > tyre pressures when cold. It's because they *know* that the pressure
> > > increases as the tyres warm up, and factor that it.
>
> > And I suspect that the daily temperature variations in Japan are far
> > less extreme than they are here in California's central valley, where
> > the temperature might change over a range of 60 degrees F in six or
> > seven hours.
>
> > So the advice in a Japanese owners manual might reflect less extreme
> > conditions.
>
> ****, but you're stupid. Let's see if you can recognise the bleedin'
> obvious, shall we.
>
> <fx: Counts>
>
> One, two, three......

Isn't it also true that Japanese tire valves are narrow and
slanted, unlike Caucasian tire valves ? I read that someplace
on the internet.

On Jun 8, 11:50*pm, "Tim M." <tomorrowaterolsdot...@yahoo.com> wrote:
> On Jun 8, 1:15*pm, "?" <breoganmacbr...@yahoo.com> wrote:
>
>
>
>
>
> > Has anybody ever been in a situation where they were tempted to
> > *reduce* air pressure in their tires for comfort during a ride?
>
> > The recommended minimum air pressure and suspension settings
> > in my Yamaha FZR1000 owner's manual don't work for me.
>
> > The area I live in has rather extreme temperature variations which I
> > doubt ever occur in Japan where the test riders must have
> > determined the recommended settings.
>
> > It can be 55 degrees in the morning here and I set my rear tire
> > pressure to the minimum 36 psi recommended by the manual.
>
> > I have the rear suspension preload backed off almost to the minimum.
> > Backing off any more will result in bottoming.
>
> > By midafternoon, the temperature is up around 100 degrees and the
> > pavement temperature has to be at least 120 degrees.
>
> > The rear tire pressure rises to 40 psi and the motorcycle becomes a
> > torture rack over the roughly paved county road that is the last 20
> > miles of my route.
>
> You do realize that you can reduce your tire pressure to 36psi after
> it has risen to 40psi, right? * You do know that different tire guages
> give different readings, right? * And you have checked yours to see
> that it is not reading 10 or 15% low, which is very common, and could
> mean that you are riding around with 44-46 psi in your rear tire once
> it comes up to operating temperature, right?
>
> I know an experienced rider like you, riding a liter sportbike, knows
> all this already. *I'm just mentioning it because you did not mention
> it in your whine^h^h^h^h^h post.
>
>
>
> > I was riding slowly along the bumpy back road yesterday when I saw the
> > lights of a bunch of Harley riders behind me, so I moved to the right
> > and let a dozen bikes pass me.
>
> > They were riding twice as fast as I could go,
>
> This is not a surprise in any way.
>
> > and I suspect that
> > their balloon tires and softtail suspensions made for a much more
> > comfortable ride than my sporty bike.
>
> Softtail suspension is notorious for its short travel, harsh spring
> rates, and poor damping.

Hmmm, that's a shame as I thought the suspension on the Road King was
pretty damn appropriate for its mission. Guess one needs to ride them
all...

On Jun 9, 9:43*am, "Krusty Kritter" <WhinerBoy...@yahoo.com> wrote:

> And I suspect that the daily temperature variations in Japan are far
> less extreme than they are here in California's central valley, where
> the temperature might change over a range of 60 degrees F in six or
> seven hours.
>
> So the advice in a Japanese owners manual might reflect less extreme
> conditions.

In which case simply bleed some of the excess air out of your tire and
see if the ride is more comfortable. How freaking hard would it be
to try that, for a big time mile eater like you?

On Jun 9, 6:24*pm, saddlebag <saddle...@aol.com> wrote:
> On Jun 8, 11:50*pm, "Tim M." <tomorrowaterolsdot...@yahoo.com> wrote:
>
>
>
>
>
> > On Jun 8, 1:15*pm, "?" <breoganmacbr...@yahoo.com> wrote:
>
> > > Has anybody ever been in a situation where they were tempted to
> > > *reduce* air pressure in their tires for comfort during a ride?
>
> > > The recommended minimum air pressure and suspension settings
> > > in my Yamaha FZR1000 owner's manual don't work for me.
>
> > > The area I live in has rather extreme temperature variations which I
> > > doubt ever occur in Japan where the test riders must have
> > > determined the recommended settings.
>
> > > It can be 55 degrees in the morning here and I set my rear tire
> > > pressure to the minimum 36 psi recommended by the manual.
>
> > > I have the rear suspension preload backed off almost to the minimum.
> > > Backing off any more will result in bottoming.
>
> > > By midafternoon, the temperature is up around 100 degrees and the
> > > pavement temperature has to be at least 120 degrees.
>
> > > The rear tire pressure rises to 40 psi and the motorcycle becomes a
> > > torture rack over the roughly paved county road that is the last 20
> > > miles of my route.
>
> > You do realize that you can reduce your tire pressure to 36psi after
> > it has risen to 40psi, right? * You do know that different tire guages
> > give different readings, right? * And you have checked yours to see
> > that it is not reading 10 or 15% low, which is very common, and could
> > mean that you are riding around with 44-46 psi in your rear tire once
> > it comes up to operating temperature, right?
>
> > I know an experienced rider like you, riding a liter sportbike, knows
> > all this already. *I'm just mentioning it because you did not mention
> > it in your whine^h^h^h^h^h post.
>
> > > I was riding slowly along the bumpy back road yesterday when I saw the
> > > lights of a bunch of Harley riders behind me, so I moved to the right
> > > and let a dozen bikes pass me.
>
> > > They were riding twice as fast as I could go,
>
> > This is not a surprise in any way.
>
> > > and I suspect that
> > > their balloon tires and softtail suspensions made for a much more
> > > comfortable ride than my sporty bike.
>
> > Softtail suspension is notorious for its short travel, harsh spring
> > rates, and poor damping.
>
> Hmmm, that's a shame as I thought the suspension on the Road King was
> pretty damn appropriate for its mission. *Guess one needs to ride them
> all..

The FLH touring bikes do not have Softtail suspension.

Never use nitrogen in motorcycle tires.....ever. This is critical. Tire heat is essential for maximum traction. Bike tires filled
with nitrogen stay too cold. I have followed this thread and like most of you, have found some of the statements made by the
originator a bit short of credible. First, unless this fellow weighs 400 lbs, the suspension won't bottom out on any setting.
Nobody has asked how heavy this guy is. Setting up a suspension preload is stupid simple. Most of the readers here know how to do
this, so I won't bore the readers with these directions. They can be found all over the net and in his owner's handbook. He needs
to use the tire manufacturer's pressure range period. I am relatively certain the guys that made his tires know considerably more
than he does about his tires. Please keep in mind his tires performance is almost as important as the space between his ears in
preventing a really bad day. I suggest he owns the wrong bike. Sportbikes are not mile eaters. They are performance machines. if
he wants a mile eater, he should buy one. These are two completely different roles that cannot be performed by the same machine. I
have a Road King, a street legal Buell 1125r and a race only 1125rr just for that reason.
Steve

"?" <(E-Mail Removed)> wrote in message news:43570058-c123-470a-af3f-(E-Mail Removed)...
On Jun 8, 11:20 pm, Eiron <E1...@hotmail.com> wrote:

> Fill your tyres with nitrogen.
> The pressure will not increase so much as they heat up.

The reason for using nitrogen to inflate tires is that it is a *dry*
gas and the pressure won't increase so much due to the vaporization of
*water* when the tires get *really* hot.

The first time I ever saw nitrogen used to inflate tires was in an
aircraft tire shop.

Aircraft tires get so hot during landings they are an explosion hazard
to ground crew placing wheel chock once the aircraft is parking.

On Jun 9, 6:22*pm, "Tim M." <tomorrowaterolsdot...@yahoo.com> wrote:
> On Jun 9, 9:43*am, "Krusty Kritter" <WhinerBoy...@yahoo.com> wrote:

> > So the advice in a Japanese owners manual might reflect less extreme
> > conditions.
>
> In which case simply bleed some of the excess air out of your tire and
> see if the ride is more comfortable. * How freaking hard would it be
> to try that, for a big time mile eater like you?

How much air should be bled and what's the
correct torque for the valve caps ?