back tire is flat about 2" across the center of the tire, does this mean i need a new tire?? thanks

 

There are wear indicators in the treads of the tire. If they are even with the surface than you need to replace the tire.

 

what are wear indicators and how do they look?? <THANKS>
the tire is a dunlop tire will this help??

 

Look in the treads of the tire. They are small raised surfaces in the tread itself.

 

oh ok thanks i think that i seen them near the surface

 

hey also whats the best size for cbr f4 rear tire

 

17' - 180/55

 

Always run the stock size tires on a bike if you have stock wheels. How is your front tire? it's always best to replace the tires as a set, but if your front tireis very good then you should be ok, but try to match them up.

Unless you are a knee dranger or a bike time leaner then the center of the tires are always going to wear way more then the rest.

 

(bike time leaner ) what does this mean ,also the front tire looked very good notthat bad looked very new if asked me

 

I think he ment big time leaner