Ummmm, what??? IF i where to guess, i would say the narrowest tire you could fit on the rim(170 maybe) and with the least tread on it. This seems like a strange Q.
I dont think anyone weighs the tires. I think the weight of the tires in the same size are more or less the same. I also live in Fl and got some 2ct's. And if you think there no good roads in FL, you should look a little harder, i find them just fine.
Dunlops tend to be the heaviest. Pirellis are light. There is significant difference in tire weight. See if you can find one of the old posts where someone put up a copy of a tire review. Might have the weight of the tires in it.
Use some 180/55 SC pros. They are going to work better than a 190/50 and be lighter as well. While Pirelli doesn't publish street tire weight the DC3 is heavy enough to be felt when holding them with a SC Pro. Also a set of take offs will be even lighter since the side rubber will be less.
Light weight wheels make a significant difference to a bikes acceleration.
One of the reasons the BST's are so good is not just that they are light but the rim is light (where another wheel may be nearly as light but it's heavier in the rim and lighter in the hub)
The light rim is better as it makes more difference to the moment of inertia.
In simple terms, the further from the axle the weight is the more effort required to get it spinning.
This makes the tyres even more important.
The tyre is even further away from the center of the wheel so any weight reduction is even more significant than the wheel.
Obviously there needs to be a decent amount of weight difference but I'd be interested to see if some tyres are significantly lighter than others.
It is nice to see an intelligent response. Moment of inertia is critical to acceleration. Rotational mass is more important than static mass and yes the farther from the center of rotation, the more critical. Also, tires don't all weight the same, I just don't have the resources to purchase numerous sets and put them on a scale. I don't want take offs so that is out. Wheels might come later but right now, I am a couple of rides from needing a new set of buns and thought that for the street, in my part of Florida (or my riding style), the actual compound / brand is not as important to me as weight of the tire. About 10 years ago when I was just getting started with sport bikes (900RR when it was new and fast not a stunta byke) Pilots were over a pound less than the competition for both front and rear. That is two pounds of rotating mass that is way out from the center.
Did you mean to write Wheels....not Tires??? thats at least what i hope you did
Nope, I mean tires. Why is that so hard to believe?
I don't need to buy wheels now but I do need tires soon. I said screw it and bought a scale ($60 at BBB). The local dealership has 5 brands in my size. I am going to have them weighed. I will post results.