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Mountain Bike Gear Ratio Calculator

Wheel Size Inner Ring Middle Ring Outer Ring
Cog Gear Ratio Inches UpShft DnShft Gear Ratio Inches UpShft DnShft Gear Ratio Inches UpShft DnShft
     
     

Where Is That Next Gear?
If you use more than one chain ring during your ride it is useful
to know before hand where the next gear, up or down, really is.
Enter your specifications (wheel size in inches) and the calculator
applies some limited smarts to find where the gear shift points are.
 
The UpShft and DnShft columns display the change relative to the gear shifted from.
 
The Gear column is adjusted to show the shift pattern across the chain rings.
( intermediate ratios are not considered - the nearest whole ratio is the next gear )

Reference Links

http://www.inlandempirecycling.com/Cycling/calculate_gear_inch_chart.htm

http://www.machinehead-software.co.uk/gear_inch_ratio_table26.html

http://www.panix.com/~jbarrm/cycal/cycal.30f.html


Roll Your Own
From The Menu Bar: View -> Source
Within your text editor: Save As "mtbGearRatioCalculator.htm"
Search for "INIT--mtbGearRatioCalculator"
Delete everthing above this line.
Search for "FINI--mtbGearRatioCalculator"
Delete everthing below this line.
Save again.
voila
your own calculator
( if this, or any alternative method, fails, message-via-email me to receive a copy of the original )


Mountain Bike Gear Ratio Calculator V4.0

Copyright (C) 2004 Michael R Young

This program is free software; you can redistribute it and/or modify it under the terms of the GNU General Public License as published by the Free Software Foundation; either version 2 of the License, or (at your option) any later version.

This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.

To receive a copy of the GNU General Public License write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.



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