Gear Charts/Calculators, etc

[cycloneracer]

Here is a gearing chart that I found that has been very helpful.  It is from 9 tooth to 23 tooth. and 9 tooth to 60 tooth.   This is the only one that I have found that goes that small on the rear sprocket.
Hope this helps!  Feel free to post other gear charts in this topic.

http://www.4strokes.com/tech/gear_ratio_chart.pdf

Paul

[Rooster]

1:1 Gearbox Speed and RPM Chart
https://docs.google.com/spreadsheet/ccc?key=0AkskuszqFgg-dGNnQlBRU3IxTDd0SlB5QnZCamdTVHc#gid=0

Here is a Speed/RPM Chart I made for the 1:1 Gearboxes people use.
I have been asked alot of questions about gearing lately, so I figured I would just build a calculator.

This is a shared Google Document;
 ONLY TYPE IN THE YELLOW BOXES
Typing in other boxes will mess up my formulas!

It figures gear ratios and can figure MPH from Engine RPM as well as Engine RPM from MPH.


Edited for gramatical errors only. Signed: Secret Santa