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Discussion Starter · #1 ·
So, I've been wondering and can't find an answer to this anywhere.
I figure it's because of the weight difference, but you gotta ask to learn.

So, 1000cc's and 6" rims and 190's. What makes it so they need, or usually do run that combo rather then the 5.5" 180 combo 600's use?
...especially with how close the new 1000rr is to the 600rr.
 

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power. the 1000's have more power so they need a wider contact patch.
 
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Discussion Starter · #3 ·
That makes some sence, but I'm sure that little bit wont make up for a 40hp difference.
 

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you will be surprised with how much of a difference it will make. they would get even more grip with a 200 but that also adds weight/rotational mass
 

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But putting an 190 on a 5.5" rim actually results in less grip than a 180

i disagree based on extensive personal experience with 190/55's on 5.5's
 

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i disagree based on extensive personal experience with 190/55's on 5.5's
exactly, that's why I asked says wHO? lol

Usually comments from people who are going based on someone elses comments, not from their own personal experience! :)
 

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The SUPER HP Moto GP Bikes, usually have 200. So, like a car more power requires more contact patch. a.k.a. Larger tire.

That's why back in the day the 600cc used only come with 160/60 when they were only pumping out 70-85 hp.

Now, it's a new ball game.


But putting an 190 on a 5.5" rim actually results in less grip than a 180

It's strange, because for a long time, Ducati 999,916,998, etc.. came with a 190 mtn. on a 5.5
Even though everyone else says, Don't put it in a 5.5 because it will pull in the sidewalls, and you will LOSE Contact patch.

Maybe Ducati knew something that everyone else didn't
Then again, now a days, all their 190 are on 6.0 Wheels.


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Discussion Starter · #16 ·
you would opt for the 180/55 over the 190/55? on the track?
Yeah. Faster turn in benefits my style more then slightly more grip would. Not the best trade off, but I'd rather feel more comfortable going into the turn then knowing I can push just a bit more.
 

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They're wider too. Wider by more then they're taller, therefore slower turn-in.
Well that would depend on the brand... But then again they all do... A profile of a 190/55 could have a better effect than that of a 180/55 of another brand...
 
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