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TOPIC: Re:Speedometer Accuracy
#203218
6hrtbt3 (User)
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Speedometer Accuracy 2 Years, 8 Months ago  
In the thread about tire size, backinthesaddlewrote Also your speedometer error is actually closer to correct with the 160.
I have heard that the speedometer on the metrics are usually 5 to 7 mph off. I haven't checked mine, but do the rest of you find this to be the case?
 
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#203220
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Re:Speedometer Accuracy 2 Years, 8 Months ago  
yes it was before i put a 160 on, it still off about 1 - 1/2 mph by a gps
 
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#203224
noxqsays (User)
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Re:Speedometer Accuracy 2 Years, 8 Months ago  
Mine is around 5 mph off. Stock rear tire on my 2005 *Star.
 
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#203238
RoadieFF (Moderator)
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Re:Speedometer Accuracy 2 Years, 8 Months ago  
6hrtbt3 wrote:
In the thread about tire size, backinthesaddlewrote Also your speedometer error is actually closer to correct with the 160.
I have heard that the speedometer on the metrics are usually 5 to 7 mph off. I haven't checked mine, but do the rest of you find this to be the case?


Just about every bike you buy has that quirk. Search through some old threads, I posted a link to an article explaining why. It was before yesterday so there's no way I can remember why now.

My wife's Camry is off by 4 mph according to my GPS, I didn't reveal that to her though.
 
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#203240
Roadkill1962 (User)
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Re:Speedometer Accuracy 2 Years, 8 Months ago  
Mine was consistently registering 3 MPH slower than the GPS; once I added the 31-tooth pulley, I am now consistently 5 MPH slower than the GPS. Since speedos are marked in 5 MPH increments, it's much easier now to look down and know how fast I'm really going...

You could get a Speedo Healer, but even when I HAD the $100 for one, it wasn't worth it to me.

RK
 
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Last Edit: 2009/06/12 11:23 By Roadkill1962.
 
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#203247
Big Dawg (User)
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Re:Speedometer Accuracy 2 Years, 8 Months ago  
A couple of our school zones have radar setups and when I go through at around 50mph, I consistently see 46-47 in the radar display.
 
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#203256
Greeny (User)
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Re:Speedometer Accuracy 2 Years, 8 Months ago  
Mine has been consistently off since day 1. Not a big deal as long as you're aware of the difference.

However, this also ties into your odometer. After my last trip which I read @ 3400 miles, my Harley buddy read it @ 3300 miles. It appears the incorrect speedo is also putting additional miles onto our odometers.

Regards....greeny
 
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#203264
Road_Hawg (User)
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Re:Speedometer Accuracy 2 Years, 8 Months ago  
Mine is 5 MPH fast compared to GPS. All stock.
 
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#203272
Moondog (User)
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Re:Speedometer Accuracy 2 Years, 8 Months ago  
I'm 8 to 9% off and since I don't want to do math while I'm riding I just go with my GPS.


Moondog
 
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#203278
Musky (User)
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Re:Speedometer Accuracy 2 Years, 8 Months ago  
By law mfgs are allowed to be off by a certain percent on the speedo. But they get nailed if it reads slow so they cover their backside and make sure they read fast. That's what I think I know anyway...
 
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