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Taiwan tyres

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jose_m_toro(at)yahoo.com
Guest

Posted: Tue Jun 27, 2006 3:51 pm Post subject: Taiwan tyres

Michel:  



Try less pressure.  With the right pressure, those

tires must work.



Jose



--- Michel Verheughe <michel(at)online.no> wrote:



 	  Quote: 	
		   Hello Mark,

 

 Here is the data about my new tyres:

 Make: Duro

 Origin: Taiwan

 Size: 5.00 - 8

 6 ply

 Pressure 30 psi

 Max load (at) 19 MPH: 570 pounds

 Diameter: 18.1"

 Width: 5.4"

 Weight: 5 pounds

 

 ... and the resulting test, compared to the Cheng

 Shin:

 Pro: Much more control when taxiing. Turns much

 sharper at the end of 

 the runway.

 Con: Much more bumpy ride! Bit fat Cheng Shin at 10

 psi is much softer 

 than 6 ply at 30 psi.

 

 Conclusion: Will have to get another pillow under my

 bottom! 

 

 Cheers,

 Michel

 

 


	




__________________________________________________

smokey_bear_40220(at)yaho
Guest

Posted: Tue Jun 27, 2006 4:32 pm Post subject: Taiwan tyres

Michel,

It looks like the bead at the wheel is the widest part

of the tire now.  Is that correct?  If so, the

sidewall flex is limited and will make them ride

harder.

Do you need 30 psi?

I saw it was warmer by you than in London.  How is the

engine cooling working out flying in the hot weather?

Kurt S.

 	  Quote: 	
		   --- Michel Verheughe <michel(at)online.no> wrote:

........................

 	  Quote: 	
		   > Con: Much more bumpy ride! Bit fat Cheng Shin at

 10 psi is much softer than 6 ply at 30 psi.

 > 

 > Conclusion: Will have to get another pillow under

 my bottom! 

 > 

 > Cheers,

 > Michel

__________________________________________________

Michel

Joined: 10 Jan 2006
Posts: 966
Location: Norway

Posted: Wed Jun 28, 2006 2:50 am Post subject: Taiwan tyres

Hello Kurt and Jose,

Yes, I could inflate to less than 30 psi. What worries me, then, is that the tube might turn in the tyre and tear off the valves. ... or, am I over-reacting?



 	  Quote: 	
		   From: kurt schrader [smokey_bear_40220(at)yahoo.com]

 It looks like the bead at the wheel is the widest part

 of the tire now.  Is that correct?


	


Yes, it looks like it, Kurt.



 	  Quote: 	
		    If so, the sidewall flex is limited and will make them ride

 harder.


	


Good thinking! ... do you know of any good pillow manufacturer? 

 

 	  Quote: 	
		   How is the

 engine cooling working out flying in the hot weather?


	


I don't know how to say this but ... even the Scandinavian Jabiru dealer doesn't believe me when I say how cool my engine is. I think I've been very lucky in my cowling forming and that it really "suck the air out of that hot stuff." 

Anyway, my CHT only goes over 110 C on the ground. Once in the air, even on the hottest day, it hardly reaching 100 C. With 180 C as max CHT, I am flying ... a cool engine at any time! 



Cheers,

Michel



do not archive

_________________
Kitfox 3 - Jabiru 2200

jose_m_toro(at)yahoo.com
Guest

Posted: Wed Jun 28, 2006 3:17 am Post subject: Taiwan tyres

Michel:



I don't think it will tear off the valve, but I'm just

guessing.  I would try 20 pounds and do some taxing

and speed taxing.  I use 8 pounds in my McCreary

tires.



Jose



--- Michel Verheughe <michel(at)online.no> wrote:



 	  Quote: 	
		   Hello Kurt and Jose,

 Yes, I could inflate to less than 30 psi. What

 worries me, then, is that the tube might turn in the

 tyre and tear off the valves. ... or, am I

 over-reacting?

 


	




__________________________________________________

smokey_bear_40220(at)yaho
Guest

Posted: Wed Jun 28, 2006 4:14 am Post subject: Taiwan tyres

I agree with Jose.  I like the 1% of gross weight rule

as a minimum.  Your plane is light too.  I think 20

would be just fine, but with the sidewalls tapered so,

it will still be stiff.  The sidewalls bending is what

absorbes the bumps and tapered out to the wheel makes

them stiffer, I think.



Kurt S.



--- "Jose M. Toro" <jose_m_toro(at)yahoo.com> wrote:

 

 	  Quote: 	
		   Michel:

 

 I don't think it will tear off the valve, but I'm

 just

 guessing.  I would try 20 pounds and do some taxing

 and speed taxing.  I use 8 pounds in my McCreary

 tires.

 

 Jose

 

 --- Michel Verheughe <michel(at)online.no> wrote:

 

 > Hello Kurt and Jose,

 > Yes, I could inflate to less than 30 psi. What

 > worries me, then, is that the tube might turn in

 the

 > tyre and tear off the valves. ... or, am I

 > over-reacting?

 > 

 

 

 __________________________________________________

 

 

 



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 Subscriptions page,

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 http://www.matronics.com/Navigator?Kitfox-List

 Admin.



 

 

 

  

  

  

 

 

 

 


	




__________________________________________________

morid(at)northland.lib.mi
Guest

Posted: Wed Jun 28, 2006 5:58 am Post subject: Taiwan tyres

Yes, Michel.  It would probably have to get down around 5lbs or less to turn

it.  I think you could easily use 15 lbs and have a better ride.

Deke



---

jose_m_toro(at)yahoo.com
Guest

Posted: Wed Jun 28, 2006 8:13 am Post subject: Taiwan tyres

Michel:



I mentioned 20 pounds just as a starting point for a

trial and error process.  I would be looking for close

to 10 pounds.



Jose



--- kurt schrader <smokey_bear_40220(at)yahoo.com> wrote:



 	  Quote: 	
		   

 <smokey_bear_40220(at)yahoo.com>

 

 I agree with Jose.  I like the 1% of gross weight

 rule

 as a minimum.  Your plane is light too.  I think 20

 would be just fine, but with the sidewalls tapered

 so,

 it will still be stiff.  The sidewalls bending is

 what

 absorbes the bumps and tapered out to the wheel

 makes

 them stiffer, I think.

 

 Kurt S.

 

 --- "Jose M. Toro" <jose_m_toro(at)yahoo.com> wrote:

  


	




__________________________________________________

Michel

Joined: 10 Jan 2006
Posts: 966
Location: Norway

Posted: Wed Jun 28, 2006 8:26 am Post subject: Taiwan tyres

Thanks Jose, Kurt and Deke.



.. Fox Control, Lima-lima-tango leaving three-zero psi for two-five! 





Deke, you say 5 psi, but my old Cheng Shin had about 12 psi and on one 

tyre, the tube had already turned a bit in such a way that the valve 

was pointing at an odd angle. Sooo, I'll decrease the pressure but 

slowly and carefully.



Cheers,

Michel



do not archive

_________________
Kitfox 3 - Jabiru 2200

Richard Rabbers

Joined: 09 Jan 2006
Posts: 114
Location: Benton Harbor, MI - USA

Posted: Wed Jun 28, 2006 9:48 am Post subject: Re: Taiwan tyres

Since tires / tyres don't spend that much time on the pavement (or grass) so probably don't heat up too much.... would a light coating of spray adhesive make sense to old the tube in place?

?????????????

Just a thought.

Richard

Michel

Joined: 10 Jan 2006
Posts: 966
Location: Norway

Posted: Wed Jun 28, 2006 1:50 pm Post subject: Taiwan tyres

On Jun 28, 2006, at 7:48 PM, Richard Rabbers wrote:

 	  Quote: 	
		   Since tires / tyres don't spend that much time on the pavement (or 

 grass) so probably don't heat up too much.... would a light coating of 

 spray adhesive make sense to old the tube in place?


	


I think it would but I am not sure it is the problem, Richard. I think 

that, when you land, the tyres, if not very inflated, tend to rotate, 

with the tube, in relation to the wheel and the hole where the valve 

sticks out. If something should be glued, it must be the tyre to the 

wheel.

Actually, someone told me today that dragsters have wooden pegs through 

the side of the wheel to keep the tyre (and ultimately, the tube) in 

place when they "burn rubber."



Cheers,

Michel

_________________
Kitfox 3 - Jabiru 2200

asq1(at)adelphia.net
Guest

Posted: Wed Jun 28, 2006 2:02 pm Post subject: Taiwan tyres

Something that will make the problem worse is the common practice of using 

Talcum or "baby" powder to make the tube settle in better. Avoid this if you 

are concerned about slippage.   Larry

---

smokey_bear_40220(at)yaho
Guest

Posted: Wed Jun 28, 2006 2:30 pm Post subject: Taiwan tyres

Right.  I should have said 20 psi to start.  I use 20

psi on my heavy Fox and Michel`s is lighter by a

bunch.  But his tire size is smaller too.



I'd say 10 is a minimum, for that tire and 12-15

better for no tire/tube slippage.  It will still be

firm with those sidewalls flairing out, but the

sidewalls flaired might also makes the bead grip

weaker for the same psi.



Echoing the powder concern, if you are going to steal

the powder from your grandchild Michel, keep it

between the tube and tire, not tube and wheel.  You

want the tube more firmly gripping the wheel and let

the tire spin.



Kurt S.



--- "Jose M. Toro" <jose_m_toro(at)yahoo.com> wrote:



 	  Quote: 	
		   Michel:

 

 I mentioned 20 pounds just as a starting point for a

 trial and error process.  I would be looking for

 close to 10 pounds.

 

 Jose


	


__________________________________________________

smokey_bear_40220(at)yaho
Guest

Posted: Wed Jun 28, 2006 2:33 pm Post subject: Taiwan tyres

Michel,



Try not to decrease it to failure, then increase.  



Since you say 12 was too low, maybe 15 is the best you

can do.  With another 15 in your seat cushion?



Kurt S.



--- Michel Verheughe <michel(at)online.no> wrote:



 	  Quote: 	
		   Thanks Jose, Kurt and Deke.

 

 ... Fox Control, Lima-lima-tango leaving three-zero

 psi for two-five! 

 

 

 Deke, you say 5 psi, but my old Cheng Shin had about

 12 psi and on one 

 tyre, the tube had already turned a bit in such a

 way that the valve 

 was pointing at an odd angle. Sooo, I'll decrease

 the pressure but 

 slowly and carefully.

 

 Cheers,

 Michel

 

 do not archive


	


__________________________________________________

jose_m_toro(at)yahoo.com
Guest

Posted: Wed Jun 28, 2006 5:18 pm Post subject: Taiwan tyres

I like the number.  I vote for 15 pounds!!!



--- kurt schrader <smokey_bear_40220(at)yahoo.com> wrote:



 	  Quote: 	
		   

 <smokey_bear_40220(at)yahoo.com>

 

 Michel,

 

 Try not to decrease it to failure, then increase. 

 

 

 Since you say 12 was too low, maybe 15 is the best

 you

 can do.  With another 15 in your seat cushion?

 

 Kurt S.

 


	




__________________________________________________

Michel

Joined: 10 Jan 2006
Posts: 966
Location: Norway

Posted: Thu Jun 29, 2006 1:08 am Post subject: Taiwan tyres

 	  Quote: 	
		   From: kurt schrader [smokey_bear_40220(at)yahoo.com]

 but the sidewalls flaired might also makes the bead grip

 weaker for the same psi.


	


Jose and Kurt, the bead grip was also my concern since the tyre is not as wide as the wheel. I called the guy who got and installed the tyres for me and he says that there is no problem going down from 30 to 20 psi but I should be careful to go under that.



 	  Quote: 	
		   Echoing the powder concern, if you are going to steal

 the powder from your grandchild Michel, keep it

 between the tube and tire, not tube and wheel.


	


Kurt and Larry, I don't use powder, I don't mount the tyres myself. Are you crazy? I would get my hands dirty!  Seriously, this was done by the guy (a big tyres retailer in our town) who found and sold me the tyres. ... talcum, soap, that's not a man's work, is it? 



Cheers,

Michel



do not archive

_________________
Kitfox 3 - Jabiru 2200

dave(at)cfisher.com
Guest

Posted: Thu Jun 29, 2006 2:34 am Post subject: Taiwan tyres

I met Gary Walsh yesterday in an airport in Ontario.  He had just installed 

the MIPPI  treadless tires.  They look great and are about 21 " tall and  12 

" wide.   For any that have seen Super Cub Hardcore movies I am sure Gary 

will be next to perform some stunts like those .  Very impressive looking 

and with  912S his take off made GA aircraft there look sick.



Looking forward to seeing some Hardcore Kitfox movies soon Gary .



Dave

---

lcfitt(at)sbcglobal.net
Guest

Posted: Thu Jun 29, 2006 5:44 am Post subject: Taiwan tyres

Michel,



I wonder about tire slip also, but in a different sense.  I find it 

extremely difficult to break the bead with any tire I have ever put on these 

8" original Kitfox rims.  I damaged the hub once trying to break the bead 

using a tire demounting device.



For breaking the bead, I was advised to place the wheel and tire on the 

ground in front of my car tire and then drive over the kitfox tire.  I hope 

this makes sense.  It will break the bead without involving the rim in any 

mechanical device.  Past experience suggests to me that tire slippage would 

be quite unlikely.   However, I have heard of it happening to others.



Lowell



---

smokey_bear_40220(at)yaho
Guest

Posted: Thu Jun 29, 2006 7:54 am Post subject: Taiwan tyres

Hi Lowell,



I haven´t tried this, but if you no longer want the

tire, try a vacuum pump on it.  Would only apply to a

tubless tire though.



You definately want to press on the tire only and not

damage the rim.  It doesn´t take much to damage alum

rims.



If you drive over the tire, put some cardboard or

carpet under it to save the rim from scrubbing on the

concrete.



Another try might be a LARGE C clamp placed right at

the bead.



I know of others who have their tires slip too.  All I

know were due to underinflation.



Just some ideas.  Of course you could try a tire place

or 2 and see if their machine would fit?



Kurt s.



__________________________________________________

lcfitt(at)sbcglobal.net
Guest

Posted: Thu Jun 29, 2006 8:55 am Post subject: Taiwan tyres

Thanks Kurt,



The vacuum pump idea is a good one.  I happen to have an industrial strength 

vacuum pump under my work bench.  I will use it next tire change and report 

the results.



I did use a piece of carpet to protect the rim - thanks for the warning to 

others.



Lowell

---

Michel

Joined: 10 Jan 2006
Posts: 966
Location: Norway

Posted: Thu Jun 29, 2006 9:46 am Post subject: Taiwan tyres

On Jun 29, 2006, at 3:43 PM, Lowell Fitt wrote:

 	  Quote: 	
		    I find it extremely difficult to break the bead with any tire I have 

 ever put on these 8" original Kitfox rims.


	


This is why I don't want to do it myself, Lowell. I take the wheels to 

the workshop that does it professionally. They use a machine that turns 

around the tyre making a "poof!" sound. Cool stuff!



Gary, the King Fox tyres are very good looking but, because of my wheel 

penetration skis, I can't use them without major modifications to the 

skis. Hence my choice for some slightly smaller tyres.



Cheers,

Michel

_________________
Kitfox 3 - Jabiru 2200

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