I work in a software development house, and I developed a application to enter numbers and get an approximation of speeds using a IGH as a jack shaft. This is specific for IGH jack shafts ONLY, that are driven by the engine and then drive the wheel. No intermediate gearing is considered. I made this because it really helps to see the graph and there are so many sprocket options to configure that I needed this.
There are several vertical sliders and an output graph to show gear overlaps at specific RPMs.
starting from left to right...
http://74.217.67.51:5080/scooter.html
Have fun!
There are several vertical sliders and an output graph to show gear overlaps at specific RPMs.
starting from left to right...
- Rear wheel sprocket tooth count
- Rear wheel size in inches
- IGH sprocket that drives rear wheel, tooth count.
- IGH sprocket that is driven by the engine, tooth count.
- Tooth count of engine output sprocket.
- Ratio of crankshaft to output sprocket. 5 to 1, 7 to 1..etc
- Engine RPM, sliding this shows road speed.
- Selector for gears, 1st 2nd, 3rd. Changes road speed calculation.
- Button to 'start' simulation of standstill to full speed.
- selector for tranny type, .75/1.0/1.25 or .66/1.0/1.33
http://74.217.67.51:5080/scooter.html
Have fun!