Helps you to work out how far per revoultion you will travel or how fast you can go at any given rpm with the gears you have.Sound very noobish but what is this for?
why are some of the triangles greyed out in the top window and why does it jump about when you move the cursor around.
Because it's not designed for your browser - it does the same thing for me on IE.why does it jump about when you move the cursor around.