MotoGP » Ellison hails potential of PBM Aprilia

Britain's James Ellison buoyed by first impressions of PBM Aprilia CRT machine

Last Comment

bjr - Unregistered

February 28, 2012 11:05 PM

....The reason you would get closer racing is because you would increase stopping distances and hence increase overtaking opportunities. Most overtaking occurs on the brakes, when a rider leaves it slightly later to brake - if you run steel discs and increase stopping distance the time spent on the brakes is increased....

These are motorcycles, NOT cars. Cast iron disk rotors are plenty powerful enough to pull up a 150kg bike and 60kg rider from 200mph to a complete stop, over and over again. Carbon keeps the unsprung weight down and is a little more consistent in feel at the higher temps, but both are more than powerful enough.

Keeping the rear wheel on the ground is the limiting factor. Setting a minimum height for Centre of gravity, or a certain range of front/rear weight bias will increase braking distances.

A heavier rider can run lower ride height, which can improve the change-of-direction characteristics of his bike while still maintaining braking and drive off the corners

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