I'm pricing out tires for my bikes ('97 F3 & '03 F4i) and have come across the same size/brand tire with three diffrent part numbers. I don't get it, I see that they list diffrent bikes for each tire, but it the dimensions are the same, what's the diffrence?

http://www.denniskirk.com/jsp/tpl/ti...1923&mmyId=

http://www.denniskirk.com/jsp/tpl/ti...1923&mmyId=

http://www.denniskirk.com/jsp/tpl/ti...1923&mmyId=

 

Honestly, if anything it might be what they're made out of. I know the difference betweeen the first 2 is one is the OEM remplacement (#2) and the other is not (though cheaper). They also spell "Silica-Silane" differntly. (the first doesn't include the "e" at the end)

I would write down the part numbers and search on perelli's website and see what they have to say about it (and hunt them down via google as well, see if it's a year difference or something)

 

The only differences I can see are in the different specs for each tire, compare the overview numbers for #542622 against #541932, they have different inflated widths and also inflated diameter, the differences are small so I can't see them making a big difference... Also if you go to the fitment tabs, it lists specific bikes just for that certain part number. When you search for an 03 F4i, Bridgestone, Dunlop and Metzeler are the only tire brands that come up. [sm=wtf.gif]

Also the Pirelli's that you are looking at are W rated. The F3 replacement tires call for W rated, but the F4i tires are Z rated.I'mpretty confused about the Dennis Kirk tire system after looking at all this...

 

Well, their site was kinda helpfull...they reccomend a "120/70 ZR 17 M/C (58W) TL DIABLO Front - 2.5 BAR" for my F4i front. Only thing is that all three of those numbers list this info minus the "TL"...