190/55 to 180/55 ride height question - Kawasaki ZX-10R.net
 
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post #1 of 4 Old 11-24-2009, 07:50 PM Thread Starter
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190/55 to 180/55 ride height question

Hey guys I'm wanting to switch my stock 190/55 rear tire with a 180/55 rear tire for the fact that people say it handles better and they are cheaper then 190/55. The question I have is I have a Olins TTX out back, and I have had my suspension geometry set up. I know I'm gonna loss some height out back when i switch to the 180/55, does anybody know how much height so i can add it back by adjusting the ride height on the shock. I figured I'd ask the experts here cause they probably been there and done that.
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post #2 of 4 Old 11-24-2009, 09:06 PM
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gotta measure...different tire brands and models are sized differently.

you'll want to raise the rear by the difference between the radius of each tire formulated from their circumferences. (r= C/6.28)

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post #3 of 4 Old 11-24-2009, 09:10 PM
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I think that you will have a smaller contact patch if you change tire size. There is a reason that they only put the 180s on 600's. All the litters run a 190 if you want to save a couple of bucks go with the 190 50 instead of the 55, But imho the 180 would be a bad idea even with the suspension change.
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post #4 of 4 Old 11-24-2009, 09:23 PM
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if you convert the tire sizes

190/55 = 25.22"
180/55 = 24.79"

so if those are anywhere near correct on what an actual tire is (depending on manufactures) the tire will be 0.43" smaller so you will be sitting 0.215" lower on the ground....
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