If someone wants to go bigger on the rear tire, why not a 220? or a 230? or a 300?

Get one so thick that the entire bike stands upright without the kickstand.

Makes sense to me

 

I just bought a Pirelli Diablo Rosso 180 and it looks skinny compared to my old dunlop 180. Yeah i love the twisties and leaning hard but my buddy just bought a CBR 1000 and he has a 190. I was thinking about upgrading next time but it sounds like its a down grade in performance if i go to 190... if so, why does the 1000 have a 190 rear tire? ..... 200 looks pretty though!!!?!?!?!

 

The 1000 has a 190 rear tire because the bike was designed to have a 190 rear tire.

Not because a 190 is wider and looks cooler, but because the 1000 needs one and has a 190 designed for it.

The 900rr was designed to have a 180 size tire.

 

My bike can handle the extra inertia so it should not be an issue of speed. It'll be ight.

 

True dat

 

I'm not a small guy(240lbs) so I'm going streched with a 240 rear. Living in Dallas Tx I don't do very much leaning anyway. I want my CBR 900rr to look good, sound good and ride comfortable.

 

A really good article on this exact topic:

http://www.sportrider.com/tech/tires...ize/index.html

 

I'd go with the 180/55 if you just commute around town. If you hit twisties then you might consider 190/50 since it maintains the turn in of a 180 with a larger 190 contact patch but anything bigger is just silly and affects performance.

[2 cents]
Stretching it for anything other than drag strip makes a bike look too ghetto. Might as well get spinning rims and take off a front rotor.
[/2 cents]

 

You couldnt pay me to put a 190 on a 5.5in wheel.

Or stretch a bike I didnt drag race full time but each their own on that lol.