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Cheng shin tires

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msm_9949(at)yahoo.com
Guest

Posted: Mon May 06, 2013 6:59 pm Post subject: Cheng shin tires

Does anyone have a line on shaved 20x7.00-8 Cheng Shins or an equivalent that will fit my rims? Original equipment has finally worn out. 



Marco Menezes N99KX

Model II 582-90 C-box 3:1 w/ clutch

Hersey, MI

Jason Omelchuck

Joined: 07 May 2009
Posts: 120
Location: Portland Oregon

Posted: Sun Jun 09, 2013 6:57 am Post subject: Re: Cheng shin tires

I got some from Dressler tires a year or so ago.

 	  msm_9949(at)yahoo.com wrote: 	
		  Does anyone have a line on shaved 20x7.00-8 Cheng Shins or an equivalent that will fit my rims? Original equipment has finally worn out. 



Marco Menezes N99KX

Model II 582-90 C-box 3:1 w/ clutch

Hersey, MI

msm_9949(at)yahoo.com
Guest

Posted: Tue Jun 11, 2013 9:13 am Post subject: Cheng shin tires

Thanks Jason. I'll look them up. I did finally mount King Fox 21x12-8 tires that I'm still getting used to. They're quite bouncy on landing I've found unless you really "grease" the touchdown.

  

 Marco Menezes N99KX

Model II 582-90 C-box 3:1 w/ clutch

Hersey, MI

 



    

From: Jason Omelchuck <jason(at)trek-tech.com>

To: kitfox-list(at)matronics.com 

Sent: Sunday, June 9, 2013 10:57 AM

Subject: Re: Cheng shin tires



 

--> Kitfox-List message posted by: "Jason Omelchuck" <jason(at)trek-tech.com (jason(at)trek-tech.com)>



I got some from Dressler tires a year or so ago.



msm_9949(at)yahoo.com wrote:

 	  Quote: 	
		   Does anyone have a line on shaved 20x7.00-8 Cheng Shins or an equivalent that will fit my rims? Original equipment has finally worn out. 

 

 Marco Menezes N99KX

 Model II 582-90 C-box 3:1 w/ clutch

 Hersey, MI


	






Read this topic online here:



http://forums.matronics.com/viewtopiref="http://www.matronics.com/Navigator?Kitfox-List" target=_blank>httpp;             ww.matronics.com/contribution" target=_blank>http://www.matronics.com/con=================



 [quote][b]

dave

Joined: 22 Sep 2006
Posts: 1382

Posted: Tue Jun 11, 2013 6:31 pm Post subject: Cheng shin tires

King fox tires are wonderful

  

 the 21" x 12 x 8s are great as  well.........

  

 



If you bouncing you might be landing too hard ?

  

 Tires pressure?

  

  

 [quote]   ---

_________________
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msm_9949(at)yahoo.com
Guest

Posted: Wed Jun 12, 2013 11:55 am Post subject: Cheng shin tires

They just "feel" different than the Cheng Shins. I'll get used to them with practice. Landings are improving already.

  

 Marco Menezes N99KX

Model II 582-90 C-box 3:1 w/ clutch

Hersey, MI



 



    

From: Dave <dave(at)cfisher.com>

To: kitfox-list(at)matronics.com 

Sent: Tuesday, June 11, 2013 10:30 PM

Subject: Re: Re: Cheng shin tires



 

     King fox tires are wonderful

  

 the 21" x 12 x 8s are great as well........

  

 



If you bouncing you might be landing too hard ?

  

 Tires pressure?

  

  

 [quote] ---

Jeffrey Dill

Joined: 23 Jul 2007
Posts: 52
Location: Pleasant view, TN

Posted: Sun Jun 23, 2013 7:24 am Post subject: Re: Cheng shin tires

Funny to find this thread. I just flew around the patch for the first time with my Kings, that I bought a few years back. Came to the forum to ask WASSUP with the bouncing? Seems my gear is now all spring and no shock absorber. I put 8 PSI in them and came here to ask opinions about whether to add some or take some out.

New tires.jpg

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_________________
Jeff Dill
Model 2

wannafly

Joined: 13 Oct 2006
Posts: 53

Posted: Sun Jun 23, 2013 12:38 pm Post subject: Re: Cheng shin tires

I started the same tire at 8 lbs with the same results on my kitfox IV. I started lowering the pressure and am now at 4 psi and it works great. Pressure seemed to have a big bounce effect for my style of landing.

Pat Reilly

Joined: 06 Aug 2009
Posts: 345

Posted: Sun Jun 23, 2013 7:14 pm Post subject: Cheng shin tires

Jeff, Have the same tires at similar pressure on bush gear. I bounced mine in for a long time. No more. Here's a hint. It ain't the tires causing the bouncing.

 

Pat Reilly

 Mod3 582 rebuilt

Rockford, IL



On Sun, Jun 23, 2013 at 10:24 AM, Jeffrey Dill <1dillfamily(at)gmail.com (1dillfamily(at)gmail.com)> wrote:

  	  Quote: 	
		  --> Kitfox-List message posted by: "Jeffrey Dill" <1dillfamily(at)gmail.com (1dillfamily(at)gmail.com)>

  

 Funny to find this thread. I just flew around the patch for the first time with my Kings, that I bought a few years back. Came to the forum to ask WASSUP with the bouncing? Seems my gear is now all spring and no shock absorber. I put 8 PSI in them and came here to ask opinions about whether to add some or take some out.

  

 --------

 Jeff Dill

 Model 2

 

 

 

 

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 http://forums.matronics.com/viewtopic.php?p=403205#403205

 

 

 

 

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 http://forums.matronics.com//files/new_tires_211.jpg

 

 

 

 

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-- 

Pat Reilly

Mod 3 582 Rebuild

Rockford,IL 

  [quote][b]

kl7jw(at)jwhart.us
Guest

Posted: Mon Jun 24, 2013 3:31 am Post subject: Cheng shin tires

 	  Quote: 	
		  I agree, it ain't the tires.  I've had the same tires on a Model IV with Grove gear 

for 5 years.   Bounced at first, but don't anymore.



John Hart

KF IV 

NSI Subaru

Wilburton, OK

	
       

       

       On 6/23/2013 10:13 PM, Patrick Reilly wrote:

     

     [quote]                Jeff, Have the same tires at similar pressure on bush gear.           I bounced mine in for a long time. No more. Here's a hint. It           ain't the tires causing the bouncing.

          

         Pat Reilly

         Mod3 582 rebuilt

         Rockford, IL

       

       

         

         On Sun, Jun 23, 2013 at 10:24 AM,           Jeffrey Dill <1dillfamily(at)gmail.com (1dillfamily(at)gmail.com)>           wrote:

            	  Quote: 	
		  -->             Kitfox-List message posted by: "Jeffrey Dill" <1dillfamily(at)gmail.com (1dillfamily(at)gmail.com)>

             

             Funny to find this thread. I just flew around the patch for             the first time with my Kings, that I bought a few years             back. Came to the forum to ask WASSUP with the bouncing?             Seems my gear is now all spring and no shock absorber. I put             8 PSI in them and came here to ask opinions about whether to             add some or take some out.

             

             --------

             Jeff Dill

             Model 2

             

             

           	
         

       

     [b]

Dick Maddux

Joined: 24 Jun 2008
Posts: 516
Location: Milton, Fl

Posted: Mon Jun 24, 2013 4:43 am Post subject: Cheng shin tires

Jeff,

  I tend to agree with Pat on this one.

  I run 10 lbs in mine (also with the bush gear) and have no problem  bouncing unless I screw up the touch down which I do on occasion (OK...maybe  more than occasion)

  Its all part of flying !...no big deal.

                                                          Dick Maddux

                                                          Fox 4,912UL

 [quote][b]

kerrjohna(at)comcast.net
Guest

Posted: Mon Jun 24, 2013 6:26 am Post subject: Cheng shin tires

Managed to spin (cut) the valve stem of the inner tube off when running with 4-5 lbs.  Tubelss tires will possibly break the seal at the bead because of the drag of spinning up the larger tires. 

  

IMHO 

  

John Kerr



 

   

From: Catz631(at)aol.com

To: kitfox-list(at)matronics.com

Sent: Monday, June 24, 2013 6:42:48 AM

Subject: Re: Cheng shin tires



 Jeff,

  I tend to agree with Pat on this one.

  I run 10 lbs in mine (also with the bush gear) and have no problem bouncing unless I screw up the touch down which I do on occasion (OK...maybe more than occasion)

  Its all part of flying !...no big deal.

                                                         Dick Maddux

                                                         Fox 4,912UL

[quote]

[b]

Lynn Matteson

Joined: 10 Jan 2006
Posts: 2778
Location: Grass Lake, Michigan

Posted: Mon Jun 24, 2013 11:18 am Post subject: Cheng shin tires

When landing at SCX in Tennessee, with 19-35 knot crosswinds, I hit  

the right-side wheel bad enough to gouge and bend the Douglas wheel,  

but the *tubeless* Chengs stayed on and didn't lose any air...16 lbs  

pressure. Flew it home the next day, without even checking for  

damage. I didn't even notice the gouging and bending until a week  

later when I took the wheel pant off. Hammered the bend straight,  

filed some of the gouging out, and continue to fly it to this  

day...and beyond.



Lynn Matteson

Kitfox IV Speedster, taildragger

Jabiru 2200, #2062

Prince prop 64 x 30, P-tip

Electroair direct-fire ignition system

Rotec TBI-40 injection (sleeved to 36mm)

Status: flying with 1465 hrs... (since 3-27-2006)

On Jun 24, 2013, at 10:25 AM, kerrjohna(at)comcast.net wrote:



 	  Quote: 	
		   Managed to spin (cut) the valve stem of the inner tube off when  

 running with 4-5 lbs.  Tubelss tires will possibly break the seal  

 at the bead because of the drag of spinning up the larger tires.

 IMHO

 John Kerr





 From: Catz631(at)aol.com

 To: kitfox-list(at)matronics.com

 Sent: Monday, June 24, 2013 6:42:48 AM

 Subject: Re: Cheng shin tires

 Jeff,

  I tend to agree with Pat on this one.

  I run 10 lbs in mine (also with the bush gear) and have no problem  

 bouncing unless I screw up the touch down which I do on occasion  

 (OK...maybe more than occasion)

  Its all part of flying !...no big deal.

                                                         Dick Maddux

                                                         Fox 4,912UL

 _- 

 =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= 

 3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3 

 =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= 

 3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3 

 _- 

 =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= 

 3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3 

 =3D   --> http://www.matronics.com/contribution_- 

 =3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D= 

 3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3 

 D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D=3D

_________________
Lynn
Kitfox IV-Jabiru 2200
N369LM

peteohms

Joined: 31 Oct 2007
Posts: 224
Location: Leander, TX

Posted: Mon Jun 24, 2013 11:43 am Post subject: Cheng shin tires

Are you sure you're not from Texas Lynn?   Gol Dammi! Even I wouldn't be flying in those conditions! I'd be landing across the runway.

How you bean Lynn. Missed you at Osh last year.

Pete Christensen

Leander, TX

Kitfox III N73BH

On Jun 24, 2013, at 2:17 PM, Lynn Matteson <lynnmatt(at)jps.net> wrote:

 	  Quote: 	

 When landing at SCX in Tennessee, with 19-35 knot crosswinds, I hit the right-side wheel bad enough to gouge and bend the Douglas wheel, but the *tubeless* Chengs stayed on and didn't lose any air...16 lbs pressure. Flew it home the next day, without even checking for damage. I didn't even notice the gouging and bending until a week later when I took the wheel pant off. Hammered the bend straight, filed some of the gouging out, and continue to fly it to this day...and beyond.

 Lynn Matteson

 Kitfox IV Speedster, taildragger

 Jabiru 2200, #2062

 Prince prop 64 x 30, P-tip

 Electroair direct-fire ignition system

 Rotec TBI-40 injection (sleeved to 36mm)

 Status: flying with 1465 hrs... (since 3-27-2006)

 On Jun 24, 2013, at 10:25 AM, kerrjohna(at)comcast.net wrote:

> Managed to spin (cut) the valve stem of the inner tube off when running with 4-5 lbs.  Tubelss tires will possibly break the seal at the bead because of the drag of spinning up the larger tires.

> 

> 

> IMHO

> 

> 

> John Kerr

> 

> 

> 

> 

> From: Catz631(at)aol.com

> To: kitfox-list(at)matronics.com

> Sent: Monday, June 24, 2013 6:42:48 AM

> Subject: Re: Cheng shin tires

> 

> 

> Jeff,

> I tend to agree with Pat on this one.

> I run 10 lbs in mine (also with the bush gear) and have no problem bouncing unless I screw up the touch down which I do on occasion (OK...maybe more than occasion)

> Its all part of flying !...no big deal.

>                                                        Dick Maddux

>                                                        Fox 4,912UL

_________________
Pete
Leander, TX
Kitfox III, 912ul, Grove

fox5flyer

Joined: 18 Oct 2012
Posts: 5
Location: NE Michigan

Posted: Mon Jun 24, 2013 1:06 pm Post subject: Re: Cheng shin tires

 	  Jeffrey Dill wrote: 	
		  Funny to find this thread. I just flew around the patch for the first time with my Kings, that I bought a few years back. Came to the forum to ask WASSUP with the bouncing? Seems my gear is now all spring and no shock absorber. I put 8 PSI in them and came here to ask opinions about whether to add some or take some out. 	




Nice airplane, Jeff.  Generally the amount of air in the tires has nothing to do with bouncing.  Usually the problem will go away when you slow down your landing speed a bit so that it stalls about the time you touch down.

Good luck.

Deke

Lynn Matteson

Joined: 10 Jan 2006
Posts: 2778
Location: Grass Lake, Michigan

Posted: Tue Jun 25, 2013 2:28 am Post subject: Cheng shin tires

Hi Pete-

Not FROM Texas, but I've been there!  I and a buddy put down at SCX  

because weather conditions were getting bad and we were flying higher  

and higher to get away from it. We saw the airport below us, and  

decided it was time to land. I put the left wing down and touched  

down, and it bounced over onto the right wheel then stuck. The  

airport manager came driving out to see if I was ok, so it must've  

been quite a sight. My buddy in his 150 took three tries before he  

got it down. I've got a picture of the wind sock, and it's straight out.



Yes, if I knew then what I know now, I'd have used the cross taxiway  

and part of the parking lot there to land, but I was a rookie at that  

point. : )



Yeah, I missed Osh altogether last year....weather was too bad to get  

around the Chicago area, and by the time it cleared....about  

Wednesday...I was out of the mood for going.



Lynn Matteson

Kitfox IV Speedster, taildragger

Jabiru 2200, #2062

Prince prop 64 x 30, P-tip

Electroair direct-fire ignition system

Rotec TBI-40 injection (sleeved to 36mm)

Status: flying with 1465 hrs... (since 3-27-2006)

On Jun 24, 2013, at 3:43 PM, Pete Christensen wrote:



 	  Quote: 	
		   

 <pchristensen10(at)austin.rr.com>



 Are you sure you're not from Texas Lynn?   Gol Dammi! Even I  

 wouldn't be flying in those conditions! I'd be landing across the  

 runway.



 How you bean Lynn. Missed you at Osh last year.



 Pete Christensen

 Leander, TX

 Kitfox III N73BH





 On Jun 24, 2013, at 2:17 PM, Lynn Matteson <lynnmatt(at)jps.net> wrote:



> 

>

> When landing at SCX in Tennessee, with 19-35 knot crosswinds, I  

> hit the right-side wheel bad enough to gouge and bend the Douglas  

> wheel, but the *tubeless* Chengs stayed on and didn't lose any  

> air...16 lbs pressure. Flew it home the next day, without even  

> checking for damage. I didn't even notice the gouging and bending  

> until a week later when I took the wheel pant off. Hammered the  

> bend straight, filed some of the gouging out, and continue to fly  

> it to this day...and beyond.

>

> Lynn Matteson

> Kitfox IV Speedster, taildragger

> Jabiru 2200, #2062

> Prince prop 64 x 30, P-tip

> Electroair direct-fire ignition system

> Rotec TBI-40 injection (sleeved to 36mm)

> Status: flying with 1465 hrs... (since 3-27-2006)

> On Jun 24, 2013, at 10:25 AM, kerrjohna(at)comcast.net wrote:

>

>> Managed to spin (cut) the valve stem of the inner tube off when  

>> running with 4-5 lbs.  Tubelss tires will possibly break the seal  

>> at the bead because of the drag of spinning up the larger tires.

>>

>>

>> IMHO

>>

>>

>> John Kerr

>>

>>

>>

>>

>> From: Catz631(at)aol.com

>> To: kitfox-list(at)matronics.com

>> Sent: Monday, June 24, 2013 6:42:48 AM

>> Subject: Re: Cheng shin tires

>>

>>

>> Jeff,

>> I tend to agree with Pat on this one.

>> I run 10 lbs in mine (also with the bush gear) and have no  

>> problem bouncing unless I screw up the touch down which I do on  

>> occasion (OK...maybe more than occasion)

>> Its all part of flying !...no big deal.

>>                                                        Dick Maddux

>>                                                        Fox 4,912UL

>

_________________
Lynn
Kitfox IV-Jabiru 2200
N369LM

Jeffrey Dill

Joined: 23 Jul 2007
Posts: 52
Location: Pleasant view, TN

Posted: Tue Jun 25, 2013 3:45 am Post subject: Re: Cheng shin tires

I have not had a chance to try it again, but I did lower the pressure to 4 PSI last night. One of them just kept on going after that. Was flat within 1/2 hour. 

   The common theme I am hearing is the soft touch. I can grease them all with a wheel landing, but the three point is still a matter of luck, as much as I try. Am all ears about what I am missing, but think I have heard it all and I think I understand what is going on. At that AOA adjusting pitch to go for the soft touch won't work, I have to learn how to use the throttle to stop it from dropping in, or get the timing right on the roundout. Mix that with a strong crosswind, and the only technique I can think of that guarantees control in a Model 2 at three point speeds is luck. Add a gust, and forget it. I work on it occasionally, but if I lack currency, often the case, I take the less risky way out and wheel it. Already ripped the gear off once, do a search. For me, this a challenging bird, and I have flown a lot.

   I have gathered parts for a Model IV in my hangar. I have heard a couple of comments about the bush gear that suggest it is more forgiving, might choose that.

_________________
Jeff Dill
Model 2

Lynn Matteson

Joined: 10 Jan 2006
Posts: 2778
Location: Grass Lake, Michigan

Posted: Tue Jun 25, 2013 3:48 am Post subject: Cheng shin tires

And as a followup to the landing story, this was the trip where just  

prior to that, I was seeing 177 mph ground speed on the GPS. We were  

heading down to Sun 'n' Fun, but quit trying after the winds got so  

bad. The next day we headed for home....with no wind whatsoever....go  

figure.



Lynn Matteson

Kitfox IV Speedster, taildragger

Jabiru 2200, #2062

Prince prop 64 x 30, P-tip

Electroair direct-fire ignition system

Rotec TBI-40 injection (sleeved to 36mm)

Status: flying with 1465 hrs... (since 3-27-2006)

 	  Quote:

_________________
Lynn
Kitfox IV-Jabiru 2200
N369LM

Jeffrey Dill

Joined: 23 Jul 2007
Posts: 52
Location: Pleasant view, TN

Posted: Tue Jun 25, 2013 4:28 am Post subject: Re: Cheng shin tires

Maybe I will try 10 PSI. I was halfway expecting the answer to be a higher pressure to firm them up. 10 is the max printed on the tire.

_________________
Jeff Dill
Model 2

Jim Shumaker

Joined: 09 Jan 2006
Posts: 106

Posted: Tue Jun 25, 2013 8:30 pm Post subject: Cheng shin tires

Yep, I fly a model III and that sums it up.  

 

Jim Shumaker

2002 Model III Rotax 912ul 1200 hours

     

   From: Jeffrey Dill <1dillfamily(at)gmail.com>

 To: kitfox-list(at)matronics.com 

 Sent: Tuesday, June 25, 2013 4:45 AM

 Subject: Re: Cheng shin tires

  

 

--> Kitfox-List message posted by: "Jeffrey Dill" <1dillfamily(at)gmail.com (1dillfamily(at)gmail.com)>



I have not had a chance to try it again, but I did lower the pressure to 4 PSI last night. One of them just kept on going after that. Was flat within 1/2 hour. 

   The common theme I am hearing is the soft touch. I can grease them all with a wheel landing, but the three point is still a matter of luck, as much as I try. Am all ears about what I am missing, but think I have heard it all and I think I understand what is going on. At that AOA adjusting pitch to go for the soft touch won't work, I have to learn how to use the throttle to stop it from dropping in, or get the timing  right on the roundout. Mix that with a strong crosswind, and the only technique I can think of that guarantees control in a Model 2 at three point speeds is luck. Add a gust, and forget it. I work on it occasionally, but if I lack currency, often the case, I take the less risky way out and wheel it. Already ripped the gear off once, do a search. For me, this a challenging bird, and I have flown a lot.

   I have gathered parts for a Model IV in my hangar. I have heard a couple of comments about the bush gear that suggest it is more forgiving, might choose that.



--------

Jeff Dill

Model 2





Read this topic online here:



http://forums.matronics.com/viewtopic.php?p=403385#403385          - The http://www.matronics.com/Navigator?Kitfox-List" target="_blank">http://ww                     &nbsatronics.com/contribution" target="_blank">http://www.matronics.com/contr================

 

 

  

 [quote][b]

_________________
Jim Shumaker

Jason Omelchuck

Joined: 07 May 2009
Posts: 120
Location: Portland Oregon

Posted: Tue Aug 20, 2013 6:32 pm Post subject: Re: Cheng shin tires / 21x8 tires now available

Hello All,

I just noticed today that Dressler tires has a 21" tire for a standard 6" rim.  They have it both in shaved and unshaved versions.  Below is a link



http://www.desser.com/store/products/21%7B47%7D800%252d6-4-PLY-AERO-CLASSIC-TL%7B47%7DTT-LSA-TUNDRA-TIRE.html



Jason

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