Odometer discrepency?!
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Joined: Dec 2013
Posts: 50
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From: Houston, Tx
Odometer discrepency?!
Me and the wife just got back from a little 80 mile ride. We gassed up and set our trip meters to 0. Her 2014 SGS with 300 miles got 80.0 exactly and my 2013 EG ultra limited with 9000 miles got 78.4 both bikes have original tires. That seems to me, like that is too big a difference. The only variable I see is the tread depth on the tires. 1.6 mile difference I'm confused 
Seasoned HDF Member
Joined: Jan 2007
Posts: 20,616
Likes: 4,440
From: anacoco, la
federal regulation allows for speedometers to be off. but only in one direction, they can not read slower than the speed they are actually going. so in this case, if you haven't measured the distance with gps, you don't know if one or both of the speedos are off. probably both.
Road Warrior
Joined: Mar 2011
Posts: 1,456
Likes: 132
From: Deep South, Louisiana
All speedometers in the US are set at 2 mph faster than actual speed. This is with new OEM size tires. On all the bikes with proper psi as the tire wears it will increase that ratio. When replacing tires check your speed with GPS before and after new tires were put on.
Ultimate HDF Member
Joined: Mar 2012
Posts: 6,129
Likes: 143
From: Santa Cruz
He isn't talking about the speedometer? Odometers are actually more accurate than speedometers that can read up to 10% high. 1.8 miles is about 2% difference. Could be weight/tire pressure/tread-wear/manufacturing tolerance?? If it bothers ya get a powervision and tune them in.
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Grand HDF Member
Joined: Sep 2009
Posts: 3,808
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From: Green Country Oklahoma
Harley clock runs slower and speedometer little faster when you compare to any thing runs accurately.
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Road Warrior
Joined: Jul 2013
Posts: 1,624
Likes: 13
From: Fort Worth
He isn't talking about the speedometer? Odometers are actually more accurate than speedometers that can read up to 10% high. 1.8 miles is about 2% difference. Could be weight/tire pressure/tread-wear/manufacturing tolerance?? If it bothers ya get a powervision and tune them in.
I understand why too. People like me would turn the speedo all the down and just use a gps for speed. Hey, I would have a bike with 100 miles on it when I trade it in.
I know of no federal law for accuracy for odometers, just tampering.
