Speedometer Accuracy

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Jul 20, 2024 | 01:48 PM

686 Shooter

Thread Starter

Tourer

Joined: Jun 2021

Posts: 307

Likes: 506

From: Saskatchewan Canada

Speedometer Accuracy

Hi all. I just got my 24 Heritage this spring and noticed that when I was travelling at my usual cruising speed of 112 km/h I was constantly getting passed. Now before the "why so slow" bitchin starts, here in Saskatchewan, Canada, the cops leave a lone biker alone if you are going that speed on a 100 km/h highway. So today while out for a rip, I stopped for a coffee at Tim Horton's, and downloaded the top-rated speedo app in the Google store. On the way home sure enough, my speedo is out 4-5%. In order to be doing 112, I have to be travelling at 118-119 on my speedo.

Is there a way a guy can correct this on his own or does he have to take it to the dealer? I think I know the answer, but ya never know.

Jul 20, 2024 | 02:26 PM

08xl1200r

Road Master

Joined: Feb 2018

Posts: 911

Likes: 647

From: west coast

There are a few aftermarket devices that might work, Speedo Healer and Speedo DRD...I had great results with a Speedo DRD but that was on a Honda. FWIW haven't needed one for my older Harleys, the speedos are dead accurate.

https://www.healtech-electronics.com/products/sh/

https://shop.12oclocklabs.com/index....&product_id=59

Last edited by 08xl1200r; Jul 20, 2024 at 04:11 PM.

Jul 20, 2024 | 02:48 PM

Tom H

Road Master

Joined: Dec 2022

Posts: 822

Likes: 488

From: LA Ca.

New rear tire, or old worn out and ready to replace? Makes a difference. Also the correct size that the bike came with.

Tom

Jul 20, 2024 | 03:13 PM

Jackie Paper

Seasoned HDF Member

Joined: Mar 2010

Posts: 38,586

Likes: 6,435

From: Honah Lee

Now that you know, your good. Mileage warranty will last longer.

.

My old 04, I hated the speedometer placement. Once upon a time, thay actually enforced the speed limit.

And I actually try to drive it. To see mine, at 6'4", I had to take my eye off the road.

I added a OEM risers mounted tac for a speedometer . All I ever use.

Last edited by Jackie Paper; Jul 20, 2024 at 03:14 PM.

Jul 21, 2024 | 04:31 AM

SJC69

Cruiser

Joined: Feb 2018

Posts: 190

Likes: 148

From: Essex UK

If it's new/ under warranty take it back to the dealer and get them to recalibrate the Speedo, they 'should' be able to do this via the digital technician.
If you have a tuner like the FP3 this is also capable of recalibrating the speedo as well as many others, do not go buy something to fix it when the dealer should fix it!

Jul 21, 2024 | 12:17 PM

Candubrain

Road Master

Joined: Nov 2010

Posts: 922

Likes: 305

From: Kincardine, Ontario, Canada

Quote:

Originally Posted by 686 Shooter

i all. I just got my 24 He. On the way home sure enough, my speedo is out 4-5%. In order to be doing 112,

You will find your car or truck will be 5% low as well. Manufactures do this so they aren't liable for your speeding ticket. Very common unless you have a police bike or vehicle with the calibrated speedo.

Jul 21, 2024 | 04:21 PM

Cap77

Seasoned HDF Member

Joined: May 2019

Posts: 5,894

Likes: 11,324

From: NE Ohio

Quote:

Originally Posted by Jackie Paper

Now that you know, your good. Mileage warranty will last longer.

.

you sure , Rip?

if speedo says 100 kph, but really only going 95
in an hour consistent speed, the odometer will record 100 klicks traveled, when in reality it's 95

..L.T.A.