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tmax 30 tooth speedo setting

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Old Dec 3, 2011 | 09:39 AM
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Default tmax 30 tooth speedo setting

Anyvody got any idea what the correct speedo cal setting is for a Tmax speedometer setting for adding a 30 tooth front pulley to a 2009 FLHX?
 
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Old Dec 3, 2011 | 12:48 PM
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If you go to Basic Settings under Module Configuration you will see the Speedo Cal. Click on it and you will get the calculator. The pulley teeth method is based on the rear pulley, not the front. (I found out the hard way.) So if you are lowering the front you have to increase the rear pulley count.
If you had a stock 32 this is the math:
32 times the current count = new count
30

The best way to do it is to use the Actual vs. Indicated Speed but you need radar or ride next to a buddy at a predetermined speed to see how far off you are.
 
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