Gear Ratio Calculations

http://spreadsheets.google.com/pub?key=rdKZukqATZ6bUalxMke5ljQ&output=html

This is by default for an upgear kit

"5 Gear" is set to Standard PX at 23(Primary)/65(Secondary)

"4 Gear" is set to Worb 5 Upgear is 24(Primary)/65(Secondary)

You need to change these values if you want to play around with different measurementsÂ