180 vs. 190 Rear Tires - Yamaha R6 Forum: YZF-R6 Forums
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post #1 of 93 (permalink) Old 09-26-2011, 08:25 PM Thread Starter
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180 vs. 190 Rear Tires

Hey guys,

I'm picking up an '03 R6 this weekend. It needs some new rubber, so I'm just trying to get an idea of what I should be looking into. It's currently got a 190 tire in the back, although I've heard that it's not necessarily a great idea to run that width on a 600cc bike.

This is my first street bike, so forgive my ignorance if this has been covered a million times before. I just didn't really know how to search for something like this. Any thoughts / insight / opinions are greatly appreciated!

-Garrett
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post #2 of 93 (permalink) Old 09-26-2011, 08:28 PM
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Re: 180 vs. 190 Rear Tires

I run a 190 rear on my 03. As a newb, u won't really notice a difference. 2 cents!

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post #3 of 93 (permalink) Old 09-26-2011, 08:33 PM Thread Starter
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Re: 180 vs. 190 Rear Tires

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Originally Posted by ridick_bowen View Post
I run a 190 rear on my 03. As a newb, u won't really notice a difference. 2 cents!
Awesome. Exactly what I was looking for, thanks!
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post #4 of 93 (permalink) Old 09-27-2011, 06:20 AM
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Re: 180 vs. 190 Rear Tires

Most 190's are made for a 6 inch wide rim. When you put one on the R6's 5.5 inch rim, the tire bows up and gets taller than it's supposed to be. This pitches the bike forward significantly.

I don't know how you wouldn't notice it. The bike will feel heavier when you goto turn. The right way to do it is to raise the front of the bike the difference that the rear is being raised.


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post #5 of 93 (permalink) Old 09-27-2011, 06:34 AM Thread Starter
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Re: 180 vs. 190 Rear Tires

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Originally Posted by ChiefSmokeDawg View Post
Most 190's are made for a 6 inch wide rim. When you put one on the R6's 5.5 inch rim, the tire bows up and gets taller than it's supposed to be. This pitches the bike forward significantly.

I don't know how you wouldn't notice it. The bike will feel heavier when you goto turn. The right way to do it is to raise the front of the bike the difference that the rear is being raised.
Ok, this makes sense. I thought 190's were intended for liter bikes, generally speaking. I just didn't know if one had any significant performance benefit [or downfall, for that matter] over the other on a 600. Thanks for the info, Chief.

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post #6 of 93 (permalink) Old 09-27-2011, 07:09 AM
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Re: 180 vs. 190 Rear Tires

This debate will, and has been going on for years.
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post #7 of 93 (permalink) Old 09-27-2011, 07:19 AM
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Originally Posted by just browsing View Post
Ok, this makes sense. I thought 190's were intended for liter bikes, generally speaking. I just didn't know if one had any significant performance benefit [or downfall, for that matter] over the other on a 600. Thanks for the info, Chief.

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Some people love and prefer the 190! In AMA they run a 190. It is actually designed for the 5.5 inch rim so it doesn't bow out like that. Some 190's are made for 5.5 inch rims. Manufacturers will provide that info.

There's nothing wrong with running one. U should set the bike up properly for it if u choose to go that route. It can be a 5 mm height difference. That's something u should notice. 1 mm here or there is less noticeable to the average rider.

So whatever u end up with, just make sure u do the research and make the needed changes.

To provide u an example. Carlos on here runs with me at the track. He always ran a 190 and LOVES it. Switched to a 180 and didn't make the changes needed. Bike started running wide on him despite his efforts. After inning into the grass 3 times he adjusted his ride height and has recently bested his personal fastest lap times. He will switch back to a 190 soon.

I get no less traction than he does with a 180, but I prefer a 180!


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post #8 of 93 (permalink) Old 09-27-2011, 07:27 AM Thread Starter
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Re: 180 vs. 190 Rear Tires

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Originally Posted by ramm View Post
This debate will, and has been going on for years.
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I figured as much. Please forgive my ignorance.

Quote:
Originally Posted by ChiefSmokeDawg View Post

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Some people love and prefer the 190! In AMA they run a 190. It is actually designed for the 5.5 inch rim so it doesn't bow out like that. Some 190's are made for 5.5 inch rims. Manufacturers will provide that info.

There's nothing wrong with running one. U should set the bike up properly for it if u choose to go that route. It can be a 5 mm height difference. That's something u should notice. 1 mm here or there is less noticeable to the average rider.

So whatever u end up with, just make sure u do the research and make the needed changes.

To provide u an example. Carlos on here runs with me at the track. He always ran a 190 and LOVES it. Switched to a 180 and didn't make the changes needed. Bike started running wide on him despite his efforts. After inning into the grass 3 times he adjusted his ride height and has recently bested his personal fastest lap times. He will switch back to a 190 soon.

I get no less traction than he does with a 180, but I prefer a 180!
Thanks again! I'm going to keep the 190 for a while, just to see how I like it. I'm not sure that the ride height has been adjusted accordingly yet, so I'll make sure that I do that before anything else.

As you said though, differences in traction are probably minimal, so at that point I guess it's just personal preference. Regardless, though, I'll make sure that I adjust my ride height based on the size tire that I end up running. Since this is my first street bike, it's going to be more daily / recreational use with some spirited runs every once and a while, so I'm not looking for a good track tire right now. Maybe a few years down the road
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post #9 of 93 (permalink) Old 09-27-2011, 07:31 AM
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AMA runs 190 because DUNLOP's 190 is like a 180 (race tires). Notice they don't make 180 nTecs? That's cause they make 190s and 200s. I've run 180 and 190 and prefer the 180


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post #10 of 93 (permalink) Old 09-27-2011, 07:35 AM
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Re: 180 vs. 190 Rear Tires

Quote:
Originally Posted by just browsing View Post
I figured as much. Please forgive my ignorance.



Thanks again! I'm going to keep the 190 for a while, just to see how I like it. I'm not sure that the ride height has been adjusted accordingly yet, so I'll make sure that I do that before anything else.

As you said though, differences in traction are probably minimal, so at that point I guess it's just personal preference. Regardless, though, I'll make sure that I adjust my ride height based on the size tire that I end up running. Since this is my first street bike, it's going to be more daily / recreational use with some spirited runs every once and a while, so I'm not looking for a good track tire right now. Maybe a few years down the road
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Quote:
Originally Posted by SIKBLU View Post
AMA runs 190 because DUNLOP's 190 is like a 180 (race tires). Notice they don't make 180 nTecs? That's cause they make 190s and 200s. I've run 180 and 190 and prefer the 180


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In what aspect? Cause when I measured the tread are on a 180 pirelli vs the 190 dunlop 211, the 211 had .5 inch of additional tread area than the 180.
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Circumference was about the same on the two tires.


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