Quote:
Originally posted by Felix
Quote: Originally posted by rob41b
...and how many pulses per rev of the sensor (if you put it on the gearbox O/P) is a simple calc on the 15/41 (or whatever) ratio of the final drive... |
Erm, actually, no. It's only the size of the rear sprocket that matters. No calculation required. Think about it. |
Felix, Go on then, I'll bite. If your using the pulses on the front sprocket as the speed input, why don't you need to do the math? The speed the front sprocket rotates compared to road speed, is goverened by tyre circumference and final drive ratio. Eg. a tooth of the back means more road speed for same front sprocket rotations.
Rgds, Rob