Performance calculator excel file

On-line trail calculator

Rake and trail spreadsheet

Foilsim - Basic Aerodnamics software - freeware

This program plots a drawing of a mitered angle on tubing.

Another tube mitering program by Giles Puckett produced Dec 1998. And the text file to accompany it. (Probably the same as the one above)

Ackermann steering design Spreadsheet program for trikes by Peter Eland

The Paterek 2.0 Framebuilders' Design and Plotter Software

Java programs to make frame design of standard bikes quick and easy. bikeCAD, tandemCAD, fullSuspensionCAD wheelCAD


Calculating Gear-Inch/ratio



Spoke Length



Thursday, 29 January 2009