I belive the 1995 CBR comes with a 160 rear- anyone ever size it up. I am going to, but what is the make safe size up, 180?? or greater??

Im gonna go to my local bike shop and see their opinion, but I want to see what you guys think first.

 

Do a search, all kinds of talk on here about it. No. 180 is for at aleast 5.5 inch wheel. F2 is 4.5 inch. F3 is 5 inch. 160 is the recomended size for both. A bigger tire on smaller wheel actually squeezes the big tire . So its not really as big as it should be. Plus it distorts the profile. Which is bad. If its just a stunter, go for it. If its a track bike stick with the 160.

 

not a trak bike at all, just a fun bike, a bit of highway ride for work and the rest in town and playin around. I still want to be able to corner well.... if a 4.5 takes 160, and a 5 takes 160 with a diff of .5inch, shouldnt a 5 also be able to take a 180 if the 5.5 takes 180?? Im pretty keen on gettin a fat tire on the back, but not if its gonna effect my cornering

 

there are so many posts of the consequences of putting a 180 on a rim designed to hold 170 max.
yes, it will hinder your cornering.
if you wanna do it, then do it
but keep in mind most of us dont recommend it unless you are only going 1 direction.

 

ok, so i can hold a 160 stock, but can hold a 170 max... is it safe to put a 170 on it then, since it sounds as if the 180 is pretty dangerous....

 

If I'm reading the post right, you are looking for a performance/handling gain by switching to a wider profile? If so, spend a little more on the tire's quality and stick with the stock size. If you aren't one of the 1%'ers, your stock bike is capable of more performance than you can take advantage of. It dang sure is for me! If you want to corner better, Practice! The weakest component to a modern motorcycle is the rider.

Unless you are very versed in motorcycle suspension/handling, leave that kind of modification for the race-track guys. Basically, an alter stock tires question is an evolution question, i.e. if you have to ask, you don't have the skill/knowledge, yet, to take advantage of any gains.

Ern

 

thanks madhatter, thats good advice and I totally understand what you are saying. However I am doin serious mods to my bike this winter (just got it 2 weeks ago)

I will be posting my progress pics as soon as I get started (late december)

However I am after looks really, I want a wider rear wheel, I like the look, but I dont want to take a corner hard and spin out. Im after the fattest rear I can get, but still maintain a proper degree of safety. If I pop on a 170 everyone seems to say thats ok; that being said, is there any good brand recomendations of the fattest rear 170?

 

My 96 f3 had a 180 on it when I bought it. I've put 1000miles on it so far and haven't had any troubles. I'm no track junky but I do lean pretty good in the twisties around my house and it seems to perform pretty well. You should be fine to go up to a 180.

 

ok cool thanks timbostang... so many mixed answers, its confusing. But tim it sounds like you got what I want, and it sounds like you have no problems. I think i may do the 180, still i will ask my local mechanic and tire suplier.

 

I just bought a new Dunlop Qualifier 170/60ZR17 off ebay for $75 shipped for my F3. Look on ebay for seller called harleyoffortmeyers. (yeah, I know...harley...)