Does anyone know the exact differences between the F2 and 3?

Can the F3 radiator be mounted on the F2?

Will the 5 inch rim mount on an F2 swingarm?

Is there a Honda part # to replace the speedo on the F2 front axle?
Will the F3 left side spacer work to remove the F2 speedo with the F2 rim and forks?

Is there a front semi floating rotor kit for stock replacement on the F2 rims utilizing F2 calipers or do you have to upgrade to the F3 calipers?

Will the F3 body mount up directly to the F2 frame?

On my F2 forks, where the caliper brackets would mount up, the holes on the forks were drilled out. Any idea of some quick upgrades that may have been done to beef up the front end? I will have to timestep it down so that the mounting bolts dont walk and let the calipers move around on the rotors. Any Ideas of why this was done?

I am asking all these questions because i'm looking to upgrade a really bought cheap F2 for track use. I know it's an older bike, but it's just for fun. I'm not trying to win trophys.

RC51_SP2

 

I do not know the answer to all your questions, but I do know the F3 radiator is designed to fit, it is just curved to offer greater cooling capacity..the rear rim will fit, i had a F2 with a CBR900RR (5.5" wheel) in my stock swingarm

 

are you saying that the F3 radiator is compatable with the F2? thanks man. I can't wait to get this project done. I guess if i can't win an f2 radiator on ebay, i can always go for an f3 radiator.

 

A F3( as you probally know) is just a updated F2, so the frames ate near identical as is the front end ( fork sizes, ect)..I have never tried to fit a F3 radiator into a F2 but the bodywork is interchangeable so I would guess that the radiator is too....at least the stuff on Ebay is cheap

 

arrrrg. I'm building up an F2 and I do need a radiator, but if the F3 will bolt up with no problems, then I will go for the F3 rad. I just need some solid assurance that it will bolt up though with no mounting or clearance problems. Thanks for all the help, but i'm still a little frustrated over this issue. I guess i'll just go for an F3 rad. The piping looks very different though.