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I have some excellent rear tires left over that are 190/55 ZR17.

Has anyone ran one on their 2019 Tracer?

Thanks

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Don't put a 190/55ZR17 on a 5.50 inch wide rim. You won't like it.

john

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10 hours ago, jsp said:

Don't put a 190/55ZR17 on a 5.50 inch wide rim. You won't like it.

john

I ran 190/55, 195/65, 200/60 exclusively on my race bikes with 5.5" rims. They're fine.

What you have to account for is the increased height - the 190/55 is a taller tire than a 180/55. The bike will steer a little quicker (not a bad thing - many people drop the front end to get the same/similar effect). The change could also make the bike slightly less stable. 

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If you go with a slightly taller tire please let the rest of us know your experience. As said it most likely will make it quicker to turn in but it could throw off the ABS/Traction control system because of a larger circumference. I'm not knowledgeable enough to say that it will do that, but it might.

Anybody had any experience with that?

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Tire engineers spend a lot of effort perfecting tire profiles. A 190/55-17 is designed for a 6.00 to 6.25 inch wide wheel. Now put that tire on a 5.50 wheel and you have drastically changed it's profile. The center becomes noticeably more pointed, reducing stability and it becomes a wobbler on a rain grooved freeway. It also  causes the center to flat spot quickly causing an uncertain feeling as you transition entering corners. Another change in the profile is the edge of the tire becomes  unusable. The last inch to inch and half is now at too steep of an angle to be used. If you want to try something different, try a 180/60ZR17.

john

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15 hours ago, jsp said:

Tire engineers spend a lot of effort perfecting tire profiles. A 190/55-17 is designed for a 6.00 to 6.25 inch wide wheel. Now put that tire on a 5.50 wheel and you have drastically changed it's profile. The center becomes noticeably more pointed, reducing stability and it becomes a wobbler on a rain grooved freeway. It also  causes the center to flat spot quickly causing an uncertain feeling as you transition entering corners. Another change in the profile is the edge of the tire becomes  unusable. The last inch to inch and half is now at too steep of an angle to be used. If you want to try something different, try a 180/60ZR17.

john

This myth keeps getting repeated...

The difference between 6" and 5.5" is 1/2". Take a 190/55 and squeeze the bead 1/4" in on each side. The profile of the tire barely changes in any way. Go to any roadrace track in the country - everyone from novices to pros are using the bigger tires on their 600s. Do you need that extra performance on the street? Nope, not at all. Might as well stick to the cheaper 180/55 size. But it absolutely won't hurt anything to try it.

Oh and FYI - the Pirelli 180/60 measures out at 190mm - It's just a renamed 190/55.

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So long as tire clears the chain, a 190 rear will be fine. As noted above, many track guys run 190/60's or 190/55's on 5.5" rims for extra contact patch.

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'15 FJ09

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