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- Using GEARS:
-
- You may specify the wheel size, the number of chain rings, and the
- number of freewheels on the command line. Precede the wheel size (in
- inches) with the letter W. Precede the number of chain rings with
- the letter C. Precede the number of freewheels with the letter F. Do
- not leave any space between the letter and the number. Thus if you
- have a 15 speed bike with 3 chain rings and 5 freewheels and a 26
- inch rear wheel you would type:
-
- GEARS W26 C3 F5
-
- If you leave out any or all of the parameters, the defaults are: 27
- inch wheel, 2 chain rings, 6 freewheels. You do not need to specify
- all the parameters. And you may give them in any order. The defaults
- may be changed at compile time. The macros that set the defaults are
- WHEEL, CHAINNUM, and FREENUM.
-
- -------------------------------------------
-
- Once you are into the program:
-
- You must list freewheel sprocket numbers across the top, smallest on
- the left and largest on the right, and chain ring sprocket numbers
- along the side, largest on top. Crossover gears are marked with an
- asterisk in the chart and are automatically deleted from the
- numerical-order list below the chart.
-
- Use ENTER or BACKSPACE to move the cursor to the next or previous
- gear. Or use up arrow and down arrow.
-
- Use left-arrow and right-arrow to move cursor between digits of a
- gear.
-
- Use TAB to toggle auto-advance. When auto-advance is on, the cursor
- advances to the next position when you have entered a number. Thus
- you can fill in the chart without having to press ENTER. When auto-
- advance is off the cursor stays at the same position unless you
- press ENTER. Thus you can more easily play with a single gear
- number, trying a lot of different values to see what they do.
-
- When auto-advance is on, the character > will appear in the upper
- left corner of the chart. When it is off, < will appear.
-
- There is no provision for saving a chart to a file or printing a
- chart. Use PrtScr to print a screen display.
-
- Press ? for a brief help screen.
-
- Press X to exit from the program.
-
- -------------------------------------------
-
- Error Messages:
-
- You will be warned if the freewheel or chain ring values are entered
- out of order. In either case the value of chain slack may be in
- error, and the numerical order list below the chart may be in error
- due to the wrong gears being deleted as crossovers.
-
- If the chart is incomplete there will be no figure for slack number,
- but the partial chart will be correct, as far as it goes.
-
- -------------------------------------------
-
- GEARS is a public domain program from KITTENSOFT.
- Written by Dan Schechter
- Route 1 Box 19
- Amenia, North Dakota 58004