Quote:
Originally Posted by Cutty72
Not sure about bike tires... but you are slightly off on the car tires
a 265/55R18 car tire is 265mm across the tread, the side wall is 145.75mm tall (55% of 265) and it fits an 18" rim.
I'm thinking a bike tire say 190/55R17 is going to be
190 mm edge to edge on the tread
side wall would be 55% of 190 = 104.5
and run on a 17" rim.
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Yea,you're right. I looked at my post again... my only problem with that is if you buy a 225/70 17 it will be a narrower tire than a 225/50-17 correct? Why? I know the numbers are supposed to be section width/aspect ratio- rim diameter but that part gets me. Also,I'm begining to think that mc tire numbers are height to width,mounted on the rim and inflated. Measuring tire height to the ground from the rim edge... why does that look so stupid...? Making the 190/55-17 5% taller than the 50 series tire. Which is why I think that the 200 will be taller,100mm vs 95mm. Does that make sense to anyone? Hello OTB where are you......?
BTW from an earlier discussion...it's unanimous,suzuki,dunlop,pirelli and bridgestone suggest 36 psi front and 42 psi rear for a GSXR1000. The om lists these numbers wether you are single or two-up.