Speedometer calibration???
Tourer
Joined: Apr 2012
Posts: 269
Likes: 0
From: Springfield, MO
Some of the ECM tuners will allow you to do that. Power Vision for one I believe, I have one but haven't tried that function. My speedo reads exactly 3 mph faster than the gps and that may have saved me a ticket or two.
Road Master
Joined: Sep 2012
Posts: 876
Likes: 4
From: Waskom, TX
As has been said, some of the tuners will do that. I have a Power Vision and part of the dyno service I had done was to calibrate the speedo. Expensive if you're not going to use a tuner anyway, but something to keep in mind if you do decide on one. Be sure to get one that will fix the speedo.
David
David
Cruiser
Joined: Apr 2014
Posts: 239
Likes: 27
From: Boston
My Street Glide is off to based on those electronic school zone speed limit signs that flash your speed (in a stern bright red if you're speeding)....Pisses me off. Why can't HD just properly calibrate IMPORTANT instruments on the $23,000 machines they're selling people. I love my bike, but some of the BS shortcuts and laziness the MoCo pulls is really infuriating.
Road Master
Joined: Sep 2012
Posts: 876
Likes: 4
From: Waskom, TX
My Street Glide is off to based on those electronic school zone speed limit signs that flash your speed (in a stern bright red if you're speeding)....Pisses me off. Why can't HD just properly calibrate IMPORTANT instruments on the $23,000 machines they're selling people. I love my bike, but some of the BS shortcuts and laziness the MoCo pulls is really infuriating.
David
Cruiser
Joined: Jul 2010
Posts: 190
Likes: 11
From: Kendulltucky In.
I use a "Speedo Tuner" it plugs into the speed sensor about $80 on evilbay. Baker makes a plug in calibrator too.
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Advanced
Joined: Apr 2012
Posts: 96
Likes: 1
From: Philadelphia Suburbs
I bought a HealTech Speedo Healer for my Yamaha FZ1 after making a sprocket change. It works great on that bike. For Harleys you need to know which ignition system your bike has. They are $116.99 through a vendor they link to on their site.
http://www.healtech-electronics.com/
http://www.healtech-electronics.com/
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Seasoned HDF Member
Joined: Sep 2009
Posts: 17,149
Likes: 6,174
From: SE Michigan
All vehicles are like this, its a liability thing. Better to say you are going faster than you are, than slower.
Many variables can affect this - wheel size, inflation, etc.
If you have a power vision, here's how you calibrate your speedo for free:
https://www.hdforums.com/forum/9856988-post9.html
Many variables can affect this - wheel size, inflation, etc.
If you have a power vision, here's how you calibrate your speedo for free:
https://www.hdforums.com/forum/9856988-post9.html
