F2 Tire question.
#1
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#7
RE: F2 Tire question.
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.
#8
RE: F2 Tire question.
Rear tire width has very little to do with how hard you can corner
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.
#9
RE: F2 Tire question.
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.
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.
#10
RE: F2 Tire question.
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.
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.