What Happens If I Put 180's On? - Kawasaki ZX-10R.net
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post #1 of 15 Old 12-21-2015, 09:53 PM Thread Starter
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What Happens If I Put 180's On?

What would happen if I put a 180/55 on the back of my ZX10?

I was a the dealer a few months ago to pick up my new tire, and the parts guy said I would be fine with a 180 instead of a 190. Is this true?
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post #2 of 15 Old 12-21-2015, 11:09 PM
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I run a 180/55 on my commuting wheel set but a 190/60 on weekends. Depends what you are doing with your bike to be honest. If you track your bike, you'll probably notice more of a difference than drag racing or just commuting.
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post #3 of 15 Old 12-22-2015, 06:26 AM
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Can you run one? Sure. Should you? Nope.

That tire was designed for a 5.5" rim. But the 6" that is on the 10R. It will flatten out, which lowers the profile, and will change the way the bike turns in, grips, and rides. If the bike is a straight up commuter or a dedicated track bike, you could do it. If you like taking corners though our riding somewhat hard, then stick with the 190/55. (And notice I did not say use a 190/50 either). 190/55....
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post #4 of 15 Old 12-22-2015, 08:40 AM
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Can you run one? Sure. Should you? Nope.

That tire was designed for a 5.5" rim. But the 6" that is on the 10R. It will flatten out, which lowers the profile, and will change the way the bike turns in, grips, and rides. If the bike is a straight up commuter or a dedicated track bike, you could do it. If you like taking corners though and riding somewhat hard, then stick with the 190/55. (And notice I did not say use a 190/50 either). 190/55....
pardon me sir did you say 190/50??

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post #5 of 15 Old 12-22-2015, 04:59 PM Thread Starter
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Whats the difference between 190/50 and 190/55?

and with the 180, what is the issue? poor handling? poor turn in? Im just trying to learn here
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post #6 of 15 Old 12-22-2015, 05:21 PM
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Whats the difference between 190/50 and 190/55?

The difference is 5%

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post #7 of 15 Old 12-22-2015, 05:34 PM
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The numbers you're looking at are the size of the tire. The first number is the width of the tire in millimetres. The second number is the height of the tire in percent of the width. So a190/55 is 190mm wide (roughly) and 104.5mm tall (190 x .55 = 104.5mm).

The taller the tire, the rounder the profile in most cases. If the tire is flatter, it will not transition as well. There is some variation due to the manufacturer's not this is not a guaranty. A Dunlop will feel different than a Pirelli of the same size. They won't even measure the same in actuality. But it's pretty universal that a 190/55 class rear is better.

The other thing is if using a smaller rear, the rear will be lower down. This changes the geometry of the forks. It will increase trail and reduce rake. Both will cause sluggish stearing in most cases.

The contract patch will also be affected. As is the weight. The only advantages of a smaller size tire is really the lower rotational weight and the effective change in gearing. Because of these things, the smaller tire will accelerate slightly quicker. Again, good for drag racing.

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post #8 of 15 Old 12-22-2015, 05:41 PM
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http://www.sportrider.com/five-percent-difference

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post #9 of 15 Old 12-22-2015, 05:58 PM
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What happens? You ride, and you smile, just like you do when you have 190s or 200s on.

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post #10 of 15 Old 12-22-2015, 06:33 PM
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while skynerd is technically correct...for the average streetrider it wont make a spits worth of difference. try it, ride it, dont like it, sell it.
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