http://www.tophealthbuy.com/horlaxen/

Horlaxen Try to maintain 80 to 100rpm when biking to work. This means that you will be able to ride for a longer time and much faster without straining your knees and getting tired. Your pace is calculated by taking the number of instances where your right leg rises in ten seconds, and multiplying this value times six. 80 to 110 rpm is the range you should shoot for when cycling.
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