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Old 09-30-2009, 09:01 AM
Fabian Fabian is offline
Join Date: Sep 2009
Location: Australia - Melbourne
Posts: 168
Default Re: Super Simple Tacho

Hi xlite

You can do the same thing with your single speed drive system - you will need to attach the magnet to the rear drive sprocket and have the pickup sensor fixed in a position where it can read the magnet.
From there you will have to go back to your high school maths books to work out your drive ratios back to the crankshaft to work out rpm's and then work out what circumference you will need to tell the bicycle computer to work with so it can accurately display correct rpm.

Last edited by Fabian; 09-30-2009 at 10:08 AM. Reason: typo error
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