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Old Jun 2, 2021 | 01:55 AM
  #11  
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You could try removing and cleaning the vss on the tranny. Every Harley I’ve ever ridden ( more than a hundred) underread by 5%,
So now you know why so many vehicles want to run you over on your Slow Harley.
I fit a Healtech Speedohealer on my personal Bikes. Easy to fit and program @$ 80.
 
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Old Jun 2, 2021 | 07:28 AM
  #12  
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Every HD I've owned came in about 5 mph under real speed, at 50 and up, after you know that, just ride it at the 5 mph over the speedometer read out
 
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Old Jun 2, 2021 | 07:42 AM
  #13  
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Just thinking: Higher mileage on odometer equals less money at trade in or sell time because speedo is reading higher than actual mph.
 
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Old Jun 3, 2021 | 05:44 AM
  #14  
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Powervision has the ability to adjust the speedo output.

When I got The Powervision from FM it came with a map loaded and a new number for the speedo. Mine is now right on the money.

I hope this helps.
 
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Old Jun 3, 2021 | 02:07 PM
  #15  
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Originally Posted by victory11
I snuck up on this thinking I was going to see a beer belly in a bathing suit.




Now this thread is twice as good as you thought it would be
 
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Old Jul 15, 2021 | 07:13 AM
  #16  
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Originally Posted by Peter Quinn
You could try removing and cleaning the vss on the tranny. Every Harley I’ve ever ridden ( more than a hundred) underread by 5%,
So now you know why so many vehicles want to run you over on your Slow Harley.
I fit a Healtech Speedohealer on my personal Bikes. Easy to fit and program @$ 80.
Can you remove the VSS without removing the starter? Maybe cutting down an Allen key to a lower profile
 
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Old Jul 15, 2021 | 08:12 AM
  #17  
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mine reads 5-7 mph off at 70. even still, i find myself passing more people than pass me when i'm doing +3 indicated over the speed limit. i go with the logic that my speedo is 'pretty close' and ride as if it is. i've found that in my older years, a couple mph is not gonna get you where you are going that much quicker. if you want to make a big impact on your time of arrival, you're gonna have to do substantially more than the speed limit. and that comes with all kinds of problems that i just don't want to deal with.

never had a speeding ticket on my bike.
 
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Old Jul 15, 2021 | 10:30 AM
  #18  
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Different tires will make a difference in speedometer accuracy. My 2007 ran about 5 kph off until I changed the wore Dunlop to a new Michelin Commander II. With the new tire it was correct with my GPS
 
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Old Jul 15, 2021 | 10:51 AM
  #19  
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I’ve got to wonder…would wear of the tire….and perhaps brand of the tire… and perhaps inflation of the tire make a difference. It seems that all would have the possibility of changing the circumference some which would in turn change the reading of the speedometer.

 
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Old Jul 15, 2021 | 04:42 PM
  #20  
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yes, it would.
 
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