As you all know the stock rear tire for the F2 are 160. is it possible to accept a 180 rear tire? Does anyone know what I need to change if any and is it worth it.

Don't mean to sound dumb but what is the performance diffrence from a 160 and a 180?

 

Try a search here...It's been discussed quite a bit. Bottom line: stick with the size intended by Honda....160.
RB

 

i have a 170 rear..is that bad? when i bought it my bike had a 170 on it so i figured it was stock, so when i bought new tires i purchased a 170? is a 170 a bad tire to use on the f2?

 

I wouldn't say a 170 is BAD...I've heard the handling characteristics of the bike gets worse with a bigger rear tire...
RB

 

Wider tire = slower turn in= less responsive handling

Unless you're a poser, stick with the 160, it's more than enough... or buy a chopper with the big 300's

 

Good advice, use the stock sized tire

At least that's how I feel

 

Rear tire width has very little to do with how hard you can corner. The profile will dictate how far you are going over before you run out of tire. I can and have drug the pegs, crank case, header, knee on my dads bike (at the track) and it sports a 120mm rear tire. It has little to do with anything but looks.

 

Wrong.It has everything to do with it.Too widewill be difficult to countersteer and too narrow it will fall in quick,but it won't have squat for a contact patch and you may toss it.

Your dad's bike (chassis)was designed for the narrow tires and isn't a good example here.As the bikes got faster,and lap times got lower,the need for cornerspeed grew,and so did the tire profiles.The tires must compliment the chassis period.But tire width will affect handling.

Example:For the 1st gen SV650,there were 3 rear tires available from Dunlop that signifigantly changed the way the bike turned.The DOT tire (junk),the 155 slick (made it turn like a bicycle) and the 165 slick (Bridgestone copy for more corner speed and for the 700 kitted bikes).

For the F2,the tire profile affects the turning more than anything else.A 170 is fine.The biggest thing is to make sure the profiles match,as well as the brand Don't mix and match brands,unless you got them free and they are to hold you over until you can get it right.It's dangerous otherwise.

I am currently using a Bridgestone 090 160 rear and the streetbike has never turned better.This is after 160s and 170s of various brands.The racebike gets the 165 on the back.

 

I think perhaps I didnt explain the point of this excersise enough.

The rear tire width while having an effect on turn in and stability has less effect on outright corner speed carried IF it's the appropriate size for the rim. A good tire being a 160mm on a rim designed for a 160mm tire (as on the F2 of SV) can carry ALMOST as much corner speed as a good 190 on a rim designed for a 190. Out right cornering speed isnt going to vary (all things being equal) much from a bike rolling a 160mm to a bike rolling a 190mm IF both bikes were designed to run on that tire.
BUT.......putting a 180 on a rim designed for a 160 (being narrower) will have an adverse effect on everything in the handling department. It will change the entire profile of that tire probably making it work less effective than a 160.

 

You are exactly right . Make sure the tires brands match.Don't do a Dunlop out front with a Pirelli out back,or a Michelin rear with a Dunlop front etc etc etc.

If you are using race take offs,make sure the profiles match.Pointy front tire with a round rear will put you in the ditch. Also,use Pirelli or Bridgestone take offs when it's chilly outside.Michelins and Dunlops have a higher operating temp than the others.