Calculating Metres of Development
One could also calculate "gear centimetres," but in practice this is not done. An equivalent system customarily used by continental European cyclists is "metres of development", and measures the distance travelled with each turn of the crank. That is, metres of development is calculated as:
Circumference of drive wheel in metres × number of teeth in front chainring / number of teeth in rear sprocket.
Thus gear inches and development differ by a factor of π plus imperial/metric conversion. To convert from gear inches to metres of development, multiply by 0.08 (more exactly: 0.0798, or precisely: 0.0254π).
Read more about this topic: Gear Inches
Famous quotes containing the words calculating and/or development:
“Because relationships are a primary source of self-esteem for girls and women, daughters need to know they will not lose our love if they speak up for what they want to tell us how they feel about things. . . . Teaching girls to make specific requests, rather than being indirect and agreeable, will help them avoid the pitfalls of having to be manipulative and calculating to get what they want.”
—Jeanne Elium (20th century)
“Women, because of their colonial relationship to men, have to fight for their own independence. This fight for our own independence will lead to the growth and development of the revolutionary movement in this country. Only the independent woman can be truly effective in the larger revolutionary struggle.”
—Women’s Liberation Workshop, Students for a Democratic Society, Radical political/social activist organization. “Liberation of Women,” in New Left Notes (July 10, 1967)