Chronology | Current Month | Current Thread | Current Date |
[Year List] [Month List (current year)] | [Date Index] [Thread Index] | [Thread Prev] [Thread Next] | [Date Prev] [Date Next] |
Hi Folks --
Recently there was some discussion of how to teach
about gears and gear ratios. This prompted me to dust
off my spreadsheet that analyzes the gear-ratios of a
bike.
There are two versions (for two different bikes):
http://www.av8n.com/physics/bike.xls (21-speed)
http://www.av8n.com/physics/bike2.xls (27-speed)
That means that this bike, which is nominally a 21-speed
bike, really has only 11 speeds (separated by ten steps).