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Old 06-04-2014, 01:05 PM   #11
BaldEagle
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Now, let's get into carcass thickness'

First, lets show how much tread is left on each


Car tire, Notice you DO NOT see the top of Lincoln heads. The penny is at his eyebrows. This means this tire still some life to give:

http://i574.photobucket.com/albums/s...g?t=1328068352

Now, lets see the MC tire. I do not have a section of the wear bars but, looking at the tire we all know there is no tread left:

http://i574.photobucket.com/albums/s...g?t=1328068289

Now, for ACTUALL thickness':

Car Tire:


http://i574.photobucket.com/albums/s...g?t=1328068672

MC Tire:


http://i574.photobucket.com/albums/s...g?t=1328068247

Now let's have some fun. Here is a picture of both the 16x5" MC rim off a Goldwing 1800 and 16x5J rim (the "J" rim is about the only rim used for production cars and has been for decades. "JJ" Rims are normally found on 4x4's but that's whole different animal) Please notice lower bead flange radius and how different they are. Also notice the height differences in the bead flanges and the top bead flange radius profiles. Please refer back to the top for the actual dimensions:


http://i574.photobucket.com/albums/s...g?t=1328067075

Here is the MC Tire on the MC Rim. Notice how the tire fits tight up against bead flange and the bead seat and that tire is not sitting on the bead hump:


http://i574.photobucket.com/albums/s...g?t=1328068193

Here is the Car Tire on the MC Rim; notice the difference on how the bead sets against the bead flange and the bead of the tire sits on the bead hump and that the lower bead radius of the car tire DOES NOT fit into the lower bead radius of the mc rim. Also notice how the upper bead radius are different:


http://i574.photobucket.com/albums/s...g?t=1328068222


Now some more information about tires. They have installation marks on them so that the installer can at glance, see if the bead is seating properly. When you look at a car tires sidewall, you will notice a series of small "ribs". They run perpendicular just right above the bead area. These ribs should, if the tire is seating properly, be at the top of the rims bead flange. When you look at the sidewall of a mc tire, you will see one "rib" that will run parallel to the bead area. This "rib" should, if the tire is seating properly. be right above, actually touching, the bead flange of the rim.

For those that are committed darksiders, I know no matter what evidence
I bring that shows to the contrary of what they believe, they will never believe it. I am NOT out to try to convert anybody. All this information is for those that want to learn the true facts about darksiding rather than an opinion. There are only three arguments that I will concede to a darksider, 1) the tire is cheaper. 2) you will get more miles using a car tire than a motorcycle tire. 3) there are no statistics corncerning motorcycle crashes other than Hurt Report done in the early eighties. I have spoken with the NHTSA, NTSB, Texas Dept of Motor Vehicles, Texas Dept of Motorcycle Crash Scene, Hood Country Sheriff (local county), California Dept Motor Vehicles and nobody has any data concerning causes of crashes. In almost all crashes, unless it is a commercial vehicle or a death caused by malice, there will not be an investigation by any law enforcement angency as to why the crash happened. In most cases, if any investigation occurs at the scene of the accident by law enforcement at all, it will only be to find fault. The only people that would do that depth of an investigation would be an insurance company, and any information they obtain is personal and confident.


I hope this helps. I once thought about going darkside on my 1200 sidecar rig. I too once did the "research" by going to the darksider forums and looked at everything like that and thought I was informed until I decided to do the "technical research" and this is what I have found out. So all in all, the only two things a car tire and a motorcycle tire have in common in they both have tread and they both are black.

Last edited by BaldEagle : 06-04-2014 at 02:43 PM.
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Old 06-04-2014, 01:23 PM   #12
BaldEagle
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Well I don't know why the last pictures will not post, I will have to fix that later. There it is, a detailed research for the facts.
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Last edited by BaldEagle : 06-04-2014 at 02:39 PM.
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Old 06-04-2014, 05:32 PM   #13
Oathkeeper
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Damn good thread. Never realized there was so much difference between car and motorcycle tires. Would never use car tires after reading that. Thanks very much.
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Old 06-04-2014, 06:23 PM   #14
billace
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Excellent thread. Tires seem to a second thought sometimes.
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Old 06-04-2014, 11:25 PM   #15
Zero
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So, what you're saying here is, "Don't use car tires on a motorcycle", right?


Gotcha.
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Old 06-06-2014, 08:56 PM   #16
raffica
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Quote:
Originally Posted by Zero
So, what you're saying here is, "Don't use car tires on a motorcycle", right?


Gotcha.
well, seems to me, what he said was "a motorcycle tire is specifically designed to fit a motorcycle rim, which is VERY DIFFERENT from a car rim, and a car tire is very different from a motorcycle tire". seems like he went out of his way to state facts (hate it when someone does that) and not put conjecture, opinion, and innuendo as facts.
that's my opinion. I read most of the stuff, and after looking at the diff's twixt the MC rim, and car tire vs MC tire, I'd not chose a car tire for my bike.
good information by the OP, factually verified, and evenly presented, IMHO.

p.s., "yep, he said don't use CT on a MC".. yep. I agree.
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Old 06-07-2014, 09:22 AM   #17
TI 3VOM
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Old 06-07-2014, 10:41 AM   #18
gochisox81
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As always quality info BE.

I was always on the assumtion that when you only have 2 tires to ride on, you want to be sure they are the right tires. never thought a car tire would do the same since they are designed for different purposes.

Great info and a great add to the site knowledge base.
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Old 06-11-2014, 08:40 PM   #19
Wingman
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This past weekend while at a car show I noticed a ford t-bucket with the usual small block chevy drivetrain. However the motorcycle rims and tires mounted on the front straight axel got my attention. Wonder if the owner had a bike and what kind of tire he ran on the back?
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Old 06-24-2015, 08:07 PM   #20
preacherdude
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Well, everyone needs to stay within their comfort zone. Been on the dark side for almost two years with my 750 ACE. I don't ride it like a crotch rocket, but I certainly like to have fun. No problems with it on dry or wet roads. I will definitely go with the car tire again next time.
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