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kiwi#9582
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« on: August 25, 2011, 11:00:50 AM » |
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I " borrowed" this info from another biker... FYI only if you have not checked it out... Most of us knew this anyway... Ride safe, either way.  "Over the last several years there has been considerable discussion about the use of auto tires on the rear axles of motorcycles. Look around the parking lot at your favorite motorcycle watering hole, and it’s not hard to find cruisers fitted out with big fat car tires under their rear fenders. The rationale is that auto tires are less expensive, wear longer, and may provide a smoother ride. Some claim better gas mileage. Certainly auto tires can be purchased more cheaply than motorcycle tires and may last longer, but are they suitable for motorcycles? "I won’t cover the entire debate here. Some of the most important points include the fact that tire companies have invested millions in R&D to perfect motorcycle tires for safety and performance. Further, the physics of tire behavior on bikes is radically different than that of cars, so it seems logical that different performance characteristics would be required. (Cars don’t lean. And car tires are designed to deal with water on pavement differently than motorcycle tires.) GWRRA members got a first-hand look at some of those differences at Wing Ding last month, where Region F Educators Dave and Dee Gormley introduced a fascinating and educational display. Dave has prepared a cut-away of a car tire that is being used on bikes, “mounted” on a cut-away motorcycle rim. Dave produced a similar display of a cutaway motorcycle tire and rim. It does not take long to see the significant differences. Most notably, the walls of the auto tire are far thinner, and the beading of the tire does not match up with the rim of the bike wheel. "The wall thickness is not an insignificant issue. Your bike tires need to support you and your machine when the bike leans in a curve. Therefore additional stiffness is needed in a motorcycle tire. (Ever noticed that you can’t tell if your motorcycle tires are low when the bike is parked? That’s because the sidewalls don’t flex so easily.) Likewise the mismatch of the beading on the auto tire and motorcycle rim presents significant risk when cornering, therefore exposing the rider to blowout due to loss of the seal. "Motorcycling is a very individualistic sport (group rides notwithstanding) and as riders we make our own decisions every day about gear, equipment and riding practices. GWRRA’s Rider Education Division’s position on this topic is that auto tires are not safe for motorcycles, and considers the use of auto tires to be unsafe for motorcycles. Look at the data, and judge for yourself." |
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2 nd 1998 Sadona red and Creame Tourer. ( 1st one with 104K ) VRCC, VSG, SCRC, GWRRA, PGR. Ride Woodlands, TX. area. Have ridden in all but FOUR Northwestern States  |
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Jess Tolbirt
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« Reply #1 on: August 25, 2011, 11:09:58 AM » |
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here we go again,,,
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ricoman
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« Reply #2 on: August 25, 2011, 11:29:11 AM » |
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here we go again,,,
ain't it the truth let me grab a cold one and some munchies, sit back, and wait for the fun to start! |
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take personal responsibility and keep your word
98 Tourer, black and chrome, added 8/11/10
98 Std, yellow/cream, totaled 8/3/10
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TJ
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« Reply #3 on: August 25, 2011, 11:51:44 AM » |
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Don't feed the Troll..........
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Romeo
Member
Posts: 1612
J.A.B.O.A.
Romeo, Michigan
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« Reply #4 on: August 25, 2011, 11:55:15 AM » |
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old2soon
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« Reply #5 on: August 25, 2011, 12:00:53 PM » |
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Aw crappers.  Here we go yet again.  I know it's early but a cold one and munchies just might be my best way out now.  Last week i was in Lebanon Mo. and the service manager at L S K (lebeanon suzuki-kawasaki) was expounding on EXACTLY the same deal.  Sad part of this is i JUST got calmed down from last week!!  American car tire on a metric rim etc etc(the svc mgr) i finally got p-od and left. He didn't want to here a d-mn thing i had to say.  He was locked into negative or stuck in stupid and just wasn't hearing me. I'm just gonna sit back now and TRY to stay mellow. RIDE SAFE. |
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Today is the tommorow you worried about yesterday. If at first you don't succeed screw it-save it for nite check. 1964 1968 U S Navy. Two cruises off Nam.
VRCCDS0240 2012 GL1800 Gold Wing Motor Trike conversion
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BigAl
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« Reply #6 on: August 25, 2011, 12:09:56 PM » |
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Car tires are mounted on Boss Hoss Motorcycles.
Explain again why these are unsafe.
Joe and others ride on the Car Tire and I have not noticed them parked on the side of the road with the tire off the bead.
U r simply wrong with your post.
I run motorcycle specific tires, because I think they handle better and they do.
Gives me an edge on the car tire boys when we are hauling arse in the twisties, where I ride that is about 80% of the time.
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Bobbo
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« Reply #7 on: August 25, 2011, 12:45:00 PM » |
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Car tires are mounted on Boss Hoss Motorcycles.
Several years ago they went to Avon motorcycle tires. |
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Fudd
Member
Posts: 1733
MSF RiderCoach
Denham Springs, La.
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« Reply #8 on: August 25, 2011, 12:53:50 PM » |
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Disclaimer: I am biased.
Mainly, because I ride a car tire and applaud it's traction, braking and handling characteristics.
I frequently visit a darkside website and have never heard of a properly seated car tire blow out off of the rim. If anything, some are tighter to the rim and harder to break the bead seal.
Do these experts give a side by side braking comparison? I'll bet money on the car tire's stopping ability.
With the car tire on a motorcycle tilted in a curve, I can see where there would be "less" sidewall stress than found on a automobile at speed going around a similar turn. The auto would have more sidewall load and flex.
But like I said, I'm biased. But so are the engineers working for the motorcycle tire companys.
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 Save a horse, ride a Valkyrie |
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aamcotrans
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« Reply #9 on: August 25, 2011, 01:10:52 PM » |
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called a car tire for a reason. just sayn.
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Tundra
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Posts: 3882
2014 Valkyrie 1800
Seminole, Florida
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« Reply #10 on: August 25, 2011, 01:32:05 PM » |
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If you can't be a good example: be a WARNING!!
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Jack
Member
Posts: 1889
VRCC# 3099, 1999 Valk Standard, 2006 Rocket 3
Benton, Arkansas
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« Reply #11 on: August 25, 2011, 01:37:51 PM » |
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Don't feed the Troll..........
+1 |
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"It takes a certain kind of nut to ride a motorcycle, and I am that motorcycle nut," Lyle Grimes, RIP August 2009.   |
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Hoser
Member
Posts: 5844
child of the sixties VRCC 17899
Auburn, Kansas
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« Reply #12 on: August 25, 2011, 02:09:46 PM » |
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To each his own. Who cares? Hoser
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I don't want a pickle, just wanna ride my motor sickle  [img width=300 height=233]http://i617.photobucket.com/albums/ |
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Serk
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« Reply #13 on: August 25, 2011, 02:27:58 PM » |
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Car tires are mounted on Boss Hoss Motorcycles.
Explain again why these are unsafe.
Joe and others ride on the Car Tire and I have not noticed them parked on the side of the road with the tire off the bead.
U r simply wrong with your post.
I run motorcycle specific tires, because I think they handle better and they do.
Gives me an edge on the car tire boys when we are hauling arse in the twisties, where I ride that is about 80% of the time.
Holy crap! Did BigAl just defend darksiders??? AND it rained on Hotglue?!?!?! Satan's gonna be ice skating tonight! |
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Never ask a geek 'Why?',just nod your head and slowly back away...  IBA# 22107 VRCC# 7976 VRCCDS# 226 1998 Valkyrie Standard 2008 Gold Wing Taxation is theft. μολὼν λαβέ |
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X Ring
Member
Posts: 3626
VRCC #27389, VRCCDS #204
The Landmass Between Mobile And New Orleans
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« Reply #14 on: August 25, 2011, 02:41:04 PM » |
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According to aeronautical engineers, bumblebees are incapable of flight yet I dare them to prove how they can.
Marty
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People are more passionately opposed to wearing fur than leather because it's safer to harass rich women than bikers.  |
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Bobbo
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« Reply #15 on: August 25, 2011, 02:55:44 PM » |
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According to aeronautical engineers, bumblebees are incapable of flight yet I dare them to prove how they can.
Marty
Maybe aeronautical engineers of the 19th century! |
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Ferris Leets
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« Reply #16 on: August 25, 2011, 03:04:13 PM » |
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According to aeronautical engineers, bumblebees are incapable of flight yet I dare them to prove how they can.
Marty
Maybe aeronautical engineers of the 19th century! Last time I looked Bumble Bees still could not fly. I am going out right now and take off my CT. It might blow up and fly off of the rim sitting in the garage. Which might hit my acetylene tank and rupture it. The fumes might be ignited by a firefly and boom my shop and bike are gone. The shrapnel will probably blow the oxygen bottle and destroy my house and kill ME. Maybe I'll just leave everything and move to North Dakota. Nothing ever happens there. |
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Ferris Leets
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« Reply #17 on: August 25, 2011, 03:04:50 PM » |
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This thread could be fun.
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kiwi#9582
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« Reply #18 on: August 25, 2011, 03:15:31 PM » |
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My wife told me this would turn into a discussion... surry, folks....  |
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2 nd 1998 Sadona red and Creame Tourer. ( 1st one with 104K ) VRCC, VSG, SCRC, GWRRA, PGR. Ride Woodlands, TX. area. Have ridden in all but FOUR Northwestern States |
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kiwi#9582
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« Reply #19 on: August 25, 2011, 03:21:51 PM » |
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I know they are used on the BOSSHOG, etc....  but still not for tight cornering... I know a few who have had them on the Valk, but eventually went back to radial.. I do use the Venom... wears longer... get 20K on trear tire.... Oh well, I tried... ALSO, advised FYI... did not mean for a long discussion,,, Oh well... we had nothing better to do, right???? |
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2 nd 1998 Sadona red and Creame Tourer. ( 1st one with 104K ) VRCC, VSG, SCRC, GWRRA, PGR. Ride Woodlands, TX. area. Have ridden in all but FOUR Northwestern States |
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Ferris Leets
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« Reply #20 on: August 25, 2011, 03:22:18 PM » |
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My wife told me this would turn into a discussion... surry, folks.... No need to apologize. The first post was really amusing to we who are running CTs. I am not a tire engineer (all though I play one on TV) but, that info is way out. They actually work. Believe it or not. No flaming deaths so far. Hope you are not offended by the direction this thread has taken. |
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PhredValk
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« Reply #21 on: August 25, 2011, 03:23:26 PM » |
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Only motorcyclists call them 'Car Tires'. Everyone else calls them 'Tires'.
Fred.
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Growing old is mandatory, growing up is optional.
VRCCDS0237
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Super Santa
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Posts: 1907
VRCC #27029
Houston, Texas
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« Reply #22 on: August 25, 2011, 03:41:29 PM » |
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Someday ask Wizard about riding 65 miles on a car tire with the valve stem blown out and no air pressure in the tire. It never broke the bead.
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FryeVRCCDS0067
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« Reply #23 on: August 25, 2011, 04:01:29 PM » |
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"Extremism in the defense of liberty is no vice. And... moderation in the pursuit of justice is no virtue.'' -- Barry Goldwater, Acceptance Speech at the Republican Convention; 1964  |
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bigguy
Member
Posts: 2684
VRCC# 30728
Texarkana, TX
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« Reply #24 on: August 25, 2011, 04:16:36 PM » |
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Well I run a car tire, and I'm not worried about flaming death.  |
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Here there be Dragons.  |
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Momz
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« Reply #25 on: August 25, 2011, 04:35:11 PM » |
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If we all listened to the GWRRA, then you and your passenger would wear matching jackets and matching full face helmets with rider/passenger communication. We'd also wear Bollo ties and polyester slacks, then add as much chrome and lights as the bike can handle. We'd vote for "couple of the month" and "couple of the year".
Yep, them Wing Dingers know it all!
P.S. I have two Valks, my I/S has a CT, and my standard has a M/C rear tire so I can speak from experience. CTs work well if you choose your tire wisely, and most M/C tires wear very quickly and cost far more.
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« Last Edit: August 26, 2011, 02:07:06 PM by Momz »
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 ALWAYS QUESTION AUTHORITY! 97 Valk bobber, 98 Valk Rat Rod, 2K SuperValk, plus several other classic bikes |
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ricoman
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« Reply #26 on: August 25, 2011, 04:49:35 PM » |
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My wife told me this would turn into a discussion... surry, folks.... No need to apologize. The first post was really amusing to we who are running CTs. I am not a tire engineer (all though I play one on TV) but, that info is way out. They actually work. Believe it or not. No flaming deaths so far. Hope you are not offended by the direction this thread has taken. There have been "flaming deaths" in this area. To each his/her own. If someone has an opinion that is different from yours, it does not necessarily mean they are wrong-only that they don't see things the same way. I don't get why CT users are so defensive about their choice. Ride with the tire you like-just don't sell it to me. |
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take personal responsibility and keep your word
98 Tourer, black and chrome, added 8/11/10
98 Std, yellow/cream, totaled 8/3/10
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KY,Dave (AKA Misunderstood)
Member
Posts: 4146
Specimen #30838 DS #0233
Williamsburg, KY
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« Reply #27 on: August 25, 2011, 05:06:46 PM » |
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Car tires are mounted on Boss Hoss Motorcycles.
Explain again why these are unsafe.
Joe and others ride on the Car Tire and I have not noticed them parked on the side of the road with the tire off the bead.
U r simply wrong with your post.
I run motorcycle specific tires, because I think they handle better and they do.
Gives me an edge on the car tire boys when we are hauling arse in the twisties, where I ride that is about 80% of the time.
Holy crap! Did BigAl just defend darksiders??? AND it rained on Hotglue?!?!?! Satan's gonna be ice skating tonight! Was thinking the same thing |
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Daniel Meyer
Member
Posts: 5493
Author. Adventurer. Electrician.
The State of confusion.
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« Reply #28 on: August 25, 2011, 05:13:01 PM » |
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I don't get why CT users are so defensive about their choice.
We don't get why NCT users are so offensive about our choice... --- There is something startling in that article though... "Motorcycling is a very individualistic sport ...."
It's a sport? A SPORT? The GWRRA thinks this is a fricken game? If they "don't get it" on that front...what would they "get it" on any other front. |
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CUAgain, Daniel Meyer  |
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BigAl
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« Reply #29 on: August 25, 2011, 05:23:26 PM » |
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IT is simply a choice.
Most of your stoppin power is in the front wheel dual brake setup.
In fact 75% of your braking power is the front brake.
The car tire may just be harder to lockup in a hard braking situation.
If you are not using your front brake regularly, then you will most likely need rear pads a lot sooner.
The front does all the steering and the back just follows.
The front brakes the water aside in the rain, the back just follows.
So in conclusion I for the life of me, other than lasting more than 10,000 miles and causing your expensive as hell splines to wear out from lack of lubrication-
what the hu bub is about a car tire on the back.
But you all have to admit they do look cool on the back as most people oo and ahhh when they see one.
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« Last Edit: August 25, 2011, 05:40:01 PM by BigAl »
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Fudd
Member
Posts: 1733
MSF RiderCoach
Denham Springs, La.
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« Reply #30 on: August 25, 2011, 07:08:37 PM » |
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Getting advice about car tires from the GWRRA is like getting marrage counciling from a Catholic Priest. I'm sure they mean well, but they have no way of knowing what they are talkng about.
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Save a horse, ride a Valkyrie |
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kiwi#9582
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« Reply #31 on: August 25, 2011, 07:31:06 PM » |
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OK... time's up... did not mean to get into a full blown conversation.....  Only meant FYI for those that have not changed over and those that changed back for these reasons... everyone makes their own choice for their own reason. Great input from both sides. Now we can change the subject....  |
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2 nd 1998 Sadona red and Creame Tourer. ( 1st one with 104K ) VRCC, VSG, SCRC, GWRRA, PGR. Ride Woodlands, TX. area. Have ridden in all but FOUR Northwestern States |
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¿spoom
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« Reply #32 on: August 25, 2011, 07:41:13 PM » |
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Well I run a car tire, and I'm not worried about flaming death. If you're going to ride like that you better be wearing gloves, and I don't mean "car gloves" either. |
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RoadKill
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« Reply #33 on: August 25, 2011, 08:46:18 PM » |
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Gives me an edge on the car tire boys when we are hauling arse in the twisties, where I ride that is about 80% of the time.
And that must be why Al rides in the back...carries the fire extinguisher incase of flaming death !  I'll try harder to make GOTF this year if'n you do too,AL ! |
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Nickster
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« Reply #34 on: August 25, 2011, 09:36:35 PM » |
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I rode the Alcan highway from alaska to colorado in 09 for inzane and ran a car tire the whole time. But to each their own. I would never go back to a M/C tire. They don't hold up for s**t. But ride what you want just ride it hard.
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Aknickster
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OverdueBill
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« Reply #35 on: August 25, 2011, 09:42:54 PM » |
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Tires are ok but what is really important is that my oil is so much better than the oil you are using. |
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RoadKill
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« Reply #36 on: August 25, 2011, 09:55:43 PM » |
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Tires are ok but what is really important is that my oil is so much better than the oil you are using. I only use synthetic baby oil....'cause real baby oil is just WRONG! |
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Hoser
Member
Posts: 5844
child of the sixties VRCC 17899
Auburn, Kansas
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« Reply #37 on: August 26, 2011, 05:18:18 AM » |
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Tires are ok but what is really important is that my oil is so much better than the oil you are using. I only use synthetic baby oil....'cause real baby oil is just WRONG! OMG, I think i'm gonna puke! Hoser |
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I don't want a pickle, just wanna ride my motor sickle [img width=300 height=233]http://i617.photobucket.com/albums/ |
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rainman
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Posts: 1837
Steve ( rainman) Eads
Bloomington Indiana
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« Reply #38 on: August 26, 2011, 06:49:03 AM » |
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I have been on rides with "joe" "T-Bird" and some others and I ride with a me-880 and sure in the hell can't keep up with these guys on the twisties. and I have also mounted car tires for some of my friends and there is no way that the bead of a c/t is going to slip or anything else on the motorcycle ream
Not knocking the gwrr or what ever they call them selfs but to here them talk if you ride a motorcycle you should "wear sark suit" enought said.
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Daniel Meyer
Member
Posts: 5493
Author. Adventurer. Electrician.
The State of confusion.
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« Reply #39 on: August 26, 2011, 08:30:28 AM » |
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Well I run a car tire, and I'm not worried about flaming death. You must be running that "quick disconnect" fuel line thingy... |
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CUAgain, Daniel Meyer |
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