I recently acquired a 1990 CBR600 and it needs tires. I was looking at the tires that are on there, it has 120 front and 160 rear. I thought that 120 on the front was near impossible and that 160 on the rear was very difficult. I don't seem to have any handling issues (not that I would know, its my first bike).

Has my suspension/frame been modified, or can you throw 120/160 on there without issues?

Also, what sizes should I replace them with?

Thanks.

 

Read the tire sticky at the top of this forum page. It has all the info you could ever want on tires. I have had a good experience with the tires I bought. See my signature.

 

I asked that same question at the local Honda dealer and honestly it depends if you want to spend more or less and how you ride.
Some are for Highway riding, city or in between.
Personally wherever you live can determine how much you ride as well.
Some recommend Dunlop but why put those on when you ride part of the year??
You can have a middle grade that honestly works fine and if your a beginner then I would recommend that.