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Originally Posted by maxlobovsky
noremorse, how does the ratio changing happen? I can't see how the timing belt can move anywhere or how either of the pulleys change size unless maybe the two halfs of the cones move closer to each other...
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Although it is hard to see because the tranmission is moving, there are counterweights on the nearest pulley that are meant to push the two halves together. The counterwieghts are similar to those found inside a governor and the force they apply to the pulley varies according to the rpm of the shaft.