30 psi in frt tires

[Bob Denman]

I run 85 psi in the front tires... nojoke











...of my Motorhome!

 

[BajaRon]

I'm no mathematician but think that last statement is not mathematically correct. Say a Spyder did have two rear tires, at the same total overall weight. The rear-end footprint would be doubled, but the downward PSI would be halved... an exact wash.

The total coefficient of friction (traction) would probably change some, but methinks nowhere near 25% (50% on rear axle...). :bowdown:

I have not done the math but I strongly suspect that you are correct. There are a number of factors at work here.

First, by going to 1 rear wheel you lose the stability that you gain with 2 wheels spread apart.

Second, you are replacing 2 narrow tires with 1 wide tire. While the total footprint may be a bit less with 1 wide tire. The overall traction coefficient may not be all that different.

Third, as mentioned. The pounds per square inch down-force will go down as the footprint area goes up which also affects actual traction.

I don't think it is as simple as 4 minus 1 = a 25% loss. I suspect that it is a much smaller percentage on our Spyders.

Interestingly enough. A stronger sway bar actually transfers some of the excessive down-force on the front, outside tire, to the rear wheel in a turn. This increases not only the traction at the front of the Spyder. But also increases the traction at the rear at the same time. Only in a turn however, as this is the only time a sway bar has effect on handling.

There are, of course, disadvantages to having only 1 rear wheel. But there are also a great number of advantages. everything is a trade-off.

 

[Road-Kill]

An easy method would be to mount a desired tire on your Spyder and with the parking brake "on" pull your Spyder with gauge attached.
Do this for several different brands and let us know which tires require more pull to break traction. nojoke

If we could come up with a known gauge that everyone could obtain we could ask everyone to do this test.

Since there are many who already have different tires mounted we could acquire this info and close this discussion to facts.

 

[Easy Rider]

I see thread after thread of what people "think" is best.

That's all that the people here have access to.

If the data you want even exists, it likely is not available to the general public........because some company paid for it and all of the results may not reflect favorably on the people paying to do the study.

 

[Easy Rider]

If we could come up with ...................

What's this "WE" stuff ??
If it concerns YOU that much, then go for it.
Let us know what you find out. hyea:

 

[Deanna777]

I run 19PSI in the front tires( Continental Contiprocontact's) on my 2014RTS-SE6.

I have not had any problems.

Deanna

 

[fjray]

This horse has been dead for some time now. It doesn't matter if your an educated pro or a seat of the pants type it doesn't make anybody's opinion better or worse than the next or right or wrong. Use what makes you warm and fuzzy and ride more and stress less.
I personally tried pressures all over the place and finally gave up on the spyder and moved on. The handling was never going make me happy or make the spyder something it's not.

 

[tehrlich]

Personally, I don't care what people are running for psi.

What I do care about is loud-mouth-know-it-alls hammering anyone that has a different viewpoint. Their claims of superiority aren't really backed up except by grandiose claims and emoji abuse.

This is really what keeps this stupid topic going.

 

[BLUEKNIGHT911]

Posting/s

Personally, I don't care what people are running for psi.

What I do care about is loud-mouth-know-it-alls hammering anyone that has a different viewpoint. Their claims of superiority aren't really backed up except by grandiose claims and emoji abuse.

This is really what keeps this stupid topic going.

To the " Newbie's " here, the above is what's known as a " HATE MONGERING " post ........ it is often used by people who have no factual knowledge about the subject they are referring to. So they resort to name calling and other vitriolic musings to compensate for this, and as far as " Hammering " people, it sure looks they are the ones doing all the Hammering etc. ..... Sad :dontknow: ...... Mike :thumbup:

 

[tehrlich]

To the " Newbie's " here, the above is what's known as a " HATE MONGERING " post ........ it is often used by people who have no factual knowledge about the subject they are referring to. So they resort to name calling and other vitriolic musings to compensate for this, and as far as " Hammering " people, it sure looks they are the ones doing all the Hammering etc. ..... Sad :dontknow: ...... Mike :thumbup:

Why do you think I was referring to you?

LOL

 

[BLUEKNIGHT911]

Huh

Why do you think I was referring to you?

LOL

My post didn't say it referred to anyone in particular :dontknow: ..... It was meant as an Informational post ..... OMG :yikes: are you owning up to the fact that you are a " Hate Monger " :2excited: ...................Mike :thumbup:

 

[jaherbst]

:bdh:opcorn:opcorn:

Jack

 

[Bob Denman]

Can we move on to the oil and helmet fistfights now? :dontknow:

 

[Richardv]

WHAT....?????

Kenda's are "weak" only because they have a softer rubber tread....because the machine they support is lighter.(to maintain traction)
Car tires are stronger....... because the machine they support is heavier.
My stock Kenda tires are doing awesome. 15,000 rear and 20,000+ for the front.
No need to risk extending my breaking distance to save a few bucks (or risk an accident).
What I'm reading on the use of car tires is why dealers, car tire manufacturers and installers mandate a waiver be signed.

BTW....I keep my awesome Kenda tires at 19PSI front and 28PSI rear.

19 in the front cause I installed the Baja Ron sway bar which eased up on the steering effort.

"19 in the front cause I installed the Baja Ron sway bar which eased up on the steering effort." Since when does a sway bar, help in turning a steering....??????? !!!!! ..... this statement out of the mouth of an expert.....!!!!! wow :yikes: :yikes: :yikes:

 

[Road-Kill]

"19 in the front cause I installed the Baja Ron sway bar which eased up on the steering effort." Since when does a sway bar, help in turning a steering....??????? !!!!! ..... this statement out of the mouth of an expert.....!!!!! wow :yikes: :yikes: :yikes:

I said the same thing before I installed Baja Rons sway bar.
Contact him and he will explain how improving the angle improves steering.
Your response is "a bit" over the top but its ok.

 

[Easy Rider]

To the " Newbie's " here, the above is what's known as a " HATE MONGERING " post ..

No it isn't at all.
It is expressing a well thought out, honest, analytical opinion.

But then I wouldn't expect you to understand what that is.
(There THAT is an purposefully nasty comment. Happy now.)

 

[Bob Denman]

But then I wouldn't expect you to understand what that is.
(There THAT is an purposefully nasty comment. Happy now.)

I'm happy...

hyea:hyea:hyea:hyea:hyea:hyea:hyea:: ohyea: :2thumbs:

 

[kep-up]

O Lord, have mercy, I pray!

 

[kep-up]

and a very HAPY NEW YEAR to all'a y'all.

I offer this blessing for y'all, my spydering friends:

May the road rise up to meet you;
May the wind be always at your back;
May the sun shine warm upon your face;
May the rain fall soft upon your fields;
And until we meet again,
May God hold you in the palm of His hand.

 

[Mazo EMS2]

and a very HAPY NEW YEAR to all'a y'all.

I offer this blessing for y'all, my spydering friends:

May the road rise up to meet you;
May the wind be always at your back;
May the sun shine warm upon your face;
May the rain fall soft upon your fields;
And until we meet again,
May God hold you in the palm of His hand.

I've sung that one at several funerals.......yikes ......is that where we're at with this thread???? LOCK it up Lamont!!!!