Just picked up a new to me '14 Hypermotard SP. Needs new skins and I'm not sure what to go with. I am not planning on track days, just spirited rides on the street. Mostly riding in the NY tri-state area.
This seemingly small weight difference between the heaviest Dunlops and the lighter Bridgestones is even more important than a larger weight savings at the wheel.
Simply stated, the rotational inertia of a wheel or tire is proportional to the square of the distance the weight is placed from the axle. Because of this square-effect, the tire weight has more effect on the rotational inertia of the wheel-tire combination mainly because of its somewhat greater distance from the axle.
Consequently, a 1.6 - 2 lbs. lighter front tire will give you the same handling improvement that you get by switching from an aluminum to a magnesium wheel.
Looking at it another way, you can negate the handling benefits of expensive light weight wheels by switching to a heavier tire.
This is also the best argument for choosing aftermarket wheels that have carbon fiber rims. When compared to all-magnesium wheels with the same weight, a carbon fiber rimmed wheel will have significantly lower rotational inertia that results in improved acceleration and handling.
(The similar construction of rear tires results in weight savings of less than a pound so you'll see a lesser improvement effect there.)
I'm not saying that tires should be chosen based on weight alone but given the very similar performance of high performance street tires, why not take the free mag wheel?
I’d point you to Mich Pilot Road 4..... I have a 2010 HYM 796..... after my original Bridg Battlaxe’s went away in 4K miles I put on Mich Pilot Road 2’s...... put 15k on them and they hardly looked worn.... had service done at plus 20k miles.... I did Not dick around I found best deal I could on Mich Pilots.... version 4 They grip they turn well they make the cracks in Road disappear... And they Last!!!
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