Tire Upgrade for '05 ZZR600 - TwoWheelForum: Motorcycle and Sportbike forums
 
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post #1 of 9 (permalink) Old 07-11-2007, 03:47 PM Thread Starter
 
Join Date: Jul 2007
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Tire Upgrade for '05 ZZR600

Is there any feedback in regard to me switching out my stock 180/55x17 rear with a 190/50x17?

In the front, I have a 120/65x17 and I was thinking with going with a 120/60 or 120/70x17 front.

For the rear, with the 190/50, it's about .4 of an inch smaller on the sidewall; 4.0 in. stock compared to 3.6 in. new
...and about .6 of an inch smaller on overall diameter; 25.0 in. stock compared to 24.3 in. new.

I used a tire size calculator to get the numbers.

The only thing is it looks like a that wider tire may be close to the chain guard; I don't know.

Thanks.
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post #2 of 9 (permalink) Old 07-11-2007, 08:03 PM
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Your bike will not corner as well with the 190 on the back. Go read some of the posts on www.riderforums.com. Some of the best mods you can do to a liter bike is replace the stock 190 with a 180. Besides its going to be a heavier tire and you dont want heavier tires. As far as the front, if you decrease the profile of the front tire, you will change the steering geometry of the bike and you will turn in quicker. If I was you I'd leave the stock tire size the same anf just buy good quality tires like Pilot Powers.
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post #3 of 9 (permalink) Old 07-11-2007, 08:24 PM
 
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I have seen and been part of a discussion just like this. Wider is not better. stick with the factory spec tires unless you do alot of straight driving and dont care about curves. BTW a 190 will fit fine.
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post #4 of 9 (permalink) Old 07-11-2007, 08:56 PM Thread Starter
 
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Thanks for the feedback.
The bike is more of a commuter not a canyon carver.
Considering the aforementioned, would the Pilot Sport be a better choice, in lieu of the Pilot Powers?
Then again, the "Powers" are more economical and they have a 120/65 where the "Sports" only have a 120/70.

The 190 in the rear was purely for aesthetics and also considering that I primarily do straight driving.

I think I'll definitely stay with the stock wheel size in the front (as Rider recommended) and still toy with the thought of the 190 on the rear.

Last edited by lascrew; 07-11-2007 at 09:00 PM.
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post #5 of 9 (permalink) Old 07-11-2007, 08:58 PM
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Quote:
Originally Posted by lascrew View Post
Thanks for the feedback.
The bike is more of a commuter not a canyon carver.
Considering the aformentioned, would the Pilot Sport be a better choice, in lieu of the Pilot Powers?

The 190 in the rear was purely for aesthetics and also considering that I primarily do straight driving.

I think I'll definitely stay with the stock wheel size in the front (as Rider recommended) and still toy with the thought of the 190 on the rear.
Pilots Roads are supposed to be good commuting tires.
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post #6 of 9 (permalink) Old 07-11-2007, 09:17 PM Thread Starter
 
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Quote:
Originally Posted by Rider View Post
Pilots Roads are supposed to be good commuting tires.
Yeah I was considering those but, for the front, they only have a 120/60 or a 120/70; not a 120/65 like the stock size.

The Pilot Powers have a 120/65 so I may be leaning that direction.
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post #7 of 9 (permalink) Old 07-18-2007, 08:57 AM
 
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Diablo Corsa III's

Would be good for you if you do a lot of straight driving and want to tear it up on the corners sometimes too.
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post #8 of 9 (permalink) Old 07-18-2007, 09:09 AM
 
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I Run Pilot roads on my Sv650 If you are not doing alot of curves and mostly commute to work like i do Pilot roads is a great tire and i do carve up curves some. But with how many miles i put on my bike and for the use of my bike pilot powers Won't do cuase i would wear them out to quickly Pilot roads have a harder center and you will get alot more miles out of them. Plus price here isn't to bad on them
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post #9 of 9 (permalink) Old 07-18-2007, 10:52 PM
 
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on the tire, its perfectly fine to change to a 120/70/17 tire up front, the lower the profile, probably the more you're giving up in handling.
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