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Offline OK_Trophy

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Speedo Accuracy?
« on: May 04, 2016, 01:51:29 pm »
How accurate is the speedo of the TT?  On my old Honda it was off by as much as 6mph (i.e., when it said I was going 75mph, I was actually going 69mph).  I have not had a chance to pace myself against someone going a known speed so I got to wondering about the accuracy of my new bike.  :187:

Offline OHRider

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Re: Speedo Accuracy?
« Reply #1 on: May 04, 2016, 01:55:07 pm »
mine is off by 3 MPH. reads 50 when going 47 per my GPS
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Offline azgman

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Re: Speedo Accuracy?
« Reply #2 on: May 04, 2016, 02:09:24 pm »
Mine is off between 3 and 4 mph. I would love to be able to change the digital calibration on it to get it accurate. How hard could that be? DealerTool guys, are you listening?
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Offline Zebraranger

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Re: Speedo Accuracy?
« Reply #3 on: May 04, 2016, 03:29:20 pm »
Mine is also off by 3 to 4 MPH. I've never had a bike that wasn't off by 3 to 5 MPH, it has to be intentional by the manufacturers, but I don't know why.

Offline cropbiker

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Re: Speedo Accuracy?
« Reply #4 on: May 04, 2016, 03:42:14 pm »
Yes... This topic been raised a few times in the past.

As with most vehicle speedos the TT speedo overheads by 3-5  mph at 70 mph.

The key is don't worry about it, accept it.
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Offline OK_Trophy

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Re: Speedo Accuracy?
« Reply #5 on: May 04, 2016, 04:20:31 pm »
That is pretty much what I expected.  Amazing how they can build this wonderful high tech bike but cannot make a speedometer that is accurate!  I am guessing it is due to some fear about liability from speeding though I can't imagine how showing the rider the correct speed would generate extra liability.  Interesting.  :084:

Oh, and sorry for rehashing an old topic.  I should of just done a quick search.  I can see that this has been well discussed in the past.
« Last Edit: May 04, 2016, 04:46:30 pm by OK_Trophy »

Offline trophied

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Re: Speedo Accuracy?
« Reply #6 on: May 04, 2016, 05:10:00 pm »
According to my gps mine is off by 4 mph at an indicated 80, and off by 5 mph at an indicated 120 (but don't let my wife know because that isn't close to redline in 6th).  Haven't had the inclination to look above that.
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Offline AZBob

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Re: Speedo Accuracy?
« Reply #7 on: May 04, 2016, 05:48:56 pm »
It's off by about 5%, which I find infuriating, considering all of my automobiles are either 100% accurate (ex-police car) or off by a linear amount (1mph). One of my Honda bikes is off by 1mph, and the other is off by the same 5%. All of these have been speed-checked by RADAR.
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