Odometer
Thread Starter
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Road Master
Joined: Jul 2007
Posts: 863
Likes: 1
From: Dover, DE
Odometer
Just a stupid obsevation I made while riding with some friends. We had 1.5 mles to go to our destination, there were 3 of us, we all watched our odometers as we went the final 1.5 miles. When I reached that on my 07 SG we were still about a half mile short of the spot. The other 2 guys were right on the money mine came up about .5 mile short. Anybody else notice this?
Cruiser
Joined: May 2007
Posts: 158
Likes: 0
From: San Jose, CA
RE: Odometer
Since I got my GPS I have been watching this closer. My odometer is off by about 6% according to my GPS. The bike reads less miles than the GPS. On a recent ride, I noticed that my odometer said I had riden about 288 miles and my GPS indicted about 305. I tend to have more faith in the GPS since in triangulates multiple satelites. This obviously means that the speedometer is also off by 6%. So when I am clocking 40 mph on the speedometer, my GPS reads about 38. Doesn't really concern me much, but nice to know
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Road Master
Joined: Jul 2007
Posts: 863
Likes: 1
From: Dover, DE
RE: Odometer
I know one of the guys was running stock replacements the other has had several tires on his bike. Thanks for the ideas, not a big deal just thought I would bring it up to the group and see what comes of it.
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Road Master
Joined: Jul 2007
Posts: 863
Likes: 1
From: Dover, DE
RE: Odometer
ORIGINAL: jharanin
I know one of the guys was running stock replacements the other has had several tires on his bike. Thanks for the ideas, not a big deal just thought I would bring it up to the group and see what comes of it.
I know one of the guys was running stock replacements the other has had several tires on his bike. Thanks for the ideas, not a big deal just thought I would bring it up to the group and see what comes of it.
Outstanding HDF Member
Joined: Aug 2005
Posts: 2,141
Likes: 4
From:
RE: Odometer
I know on mine I have a Dayton twin-tec ignition and I can up load a different map from my PC to the Ignition box, in the software ther is a area that asks for # or code for the Speedo. That code needs to be the correct code for what ever model of HD you have. I know for a fact that if the wrong code is in the Box your speedo will be off. I got a map from Doug Coffey from Head-Quarters for my ignition and it had the wrong #'s /CODE in the software. It was for a Dyna Glide. It was no big deal I just changed them on my PC. But I didn't know until I got out on the interstate and zipped throught the gears and the speedo said I was doing 85MPH and my RPM were only at 3000RPM. At 3000 RPM I should be at 70-72mph. It took me a little reading in the manual to find the proper code to get the speedo correct but it's all good now. Get this my RK is a FLHR and the code for the standard Road King FLHR was still Wrong. The Speedo was still 5mph off. I ended up trying the code for a Police FLHR and Bingo the speedo is right on the money now.
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Cruiser
Joined: Jul 2007
Posts: 204
Likes: 0
From: Lexington,NC
RE: Odometer
If everybody's bike is equal- tires-etc.... the MoCo will tell you that they only have to be within 10% of correct... in my riding group several of us vary a little ... one guy has a garmin gps and it tracks speeds and mileage ... it differs from his odometer and it drives "Mr. OCD" just plain CRAZY !!!!!
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Seasoned HDF Member
Joined: Jul 2007
Posts: 6,336
Likes: 67
From: SW Minnesota
RE: Odometer
There are at least two companies that produce an electronic device to correct your speedo. Kuryakin has one, and also dakota digital.
http://www.dakotadigital.com/index.c...cat/cat115.htm
It is almost unheard of to have either a speedo or odometer read slow. Almost all bikes read fast, some, like Gold Wings and BMW's, are WAY off.
Our bikes depreciate fast enough without putting on more miles than we really are.
And, your gas miliege is seldom as good as you think it is, as the odometers read fast. Use mile marker poles, and check at least over a ten mile span. You may be surprised at how far off they are. Here's a chart, compliments of the Mn State Patrol. Drive exactly 60 mph (indicated) between mile marker poles, and time yourself with a stop watch, and compare to this chart.
[IMG]local://upfiles/38853/A19231E03E92484B9B54023171100772.jpg[/IMG]
[IMG]local://upfiles/38853/C40D4B1C65A44ABDBC8C37E7F7F5AB59.jpg[/IMG]
http://www.dakotadigital.com/index.c...cat/cat115.htm
It is almost unheard of to have either a speedo or odometer read slow. Almost all bikes read fast, some, like Gold Wings and BMW's, are WAY off.
Our bikes depreciate fast enough without putting on more miles than we really are.
And, your gas miliege is seldom as good as you think it is, as the odometers read fast. Use mile marker poles, and check at least over a ten mile span. You may be surprised at how far off they are. Here's a chart, compliments of the Mn State Patrol. Drive exactly 60 mph (indicated) between mile marker poles, and time yourself with a stop watch, and compare to this chart.
[IMG]local://upfiles/38853/A19231E03E92484B9B54023171100772.jpg[/IMG]
[IMG]local://upfiles/38853/C40D4B1C65A44ABDBC8C37E7F7F5AB59.jpg[/IMG]
Seasoned HDF Member
Joined: Jul 2007
Posts: 6,336
Likes: 67
From: SW Minnesota
RE: Odometer
We have an 'o6 ultra, and the factory calibration had us going approx 63 mph when we were really going only 60. The odometer would read about .5 fast per mile, meaning that for every 100 miles traveled, the odometer read approx105. That was with a rear tire about half worn out.