My nine sheets Excel 2010 spreadsheet includes a gear ratio chart for jack shafts. Put in your primary gears and you see the primary ratio. Then there are 2 pages of ratios with almost any secondary ratio you can imagine. 20 axle gears and 10 secondary gears. You can change all of them by changing the first axle gear or first secondary gear. And it prints on two sides of one sheet of paper.I use a 19T. driver on my Yammis because it makes a 3.0 primary side ratio and I can almost figure the total ratio with out a calculator.
My nine sheets Excel 2010 spreadsheet includes a gear ratio chart for jack shafts. Put in your primary gears and you see the primary ratio. Then there are 2 pages of ratios with almost any secondary ratio you can imagine. 20 axle gears and 10 secondary gears. You can change all of them by changing the first axle gear or first secondary gear. And it prints on two sides of one sheet of paper.
Comments, compliments, criticisms and questions always welcome.