1800 Speedometer Accuracy


Information and questions on GL1800 Goldwings (2001-2017)
  • Sponsored Links
Post Reply
bryanw1
Posts: 16
Joined: Thu Jan 04, 2018 12:08 am
Location: Grantsville, Utah
Motorcycle: 2001 Goldwing 1800
2017 Goldwing 1800

1800 Speedometer Accuracy

Post by bryanw1 » Wed Feb 14, 2018 7:19 pm



Does anyone know if Honda has changed the setup for the speedometer on the 1800? My ‘01 has always run about 5% fast, which I understand is normal. I had 2 Ventures before that which did the same. I just checked the speedo on my ‘17 with a handheld GPS and it is spot on. And I mean spot on, at least as close as I can tell with an analog dial. I thought an error should show up at higher speed so I ran it to 85. It was right on all the way. Anyone know? Its a happy surprise, but definitely a surprise. I’ve never had a motorcycle with an accurate speedometer. Had a 78 BMW R90 once that ran high by 10%. I asked the dealer about it and they seemed to think that was normal.



DaveO430
Posts: 927
Joined: Fri Jan 02, 2015 7:28 pm
Location: Amity. Ar
Motorcycle: 2010 GL1800
2004 Suzuki DR200

Re: 1800 Speedometer Accuracy

Post by DaveO430 » Wed Feb 14, 2018 7:35 pm

From 09 on they are pretty accurate. The odometer is still generous though, Honda cars were the same way until they got sued over it.

bryanw1
Posts: 16
Joined: Thu Jan 04, 2018 12:08 am
Location: Grantsville, Utah
Motorcycle: 2001 Goldwing 1800
2017 Goldwing 1800

Re: 1800 Speedometer Accuracy

Post by bryanw1 » Wed Feb 14, 2018 8:25 pm

Thanks. I didn't know they had changed much of anything.

DaveO430
Posts: 927
Joined: Fri Jan 02, 2015 7:28 pm
Location: Amity. Ar
Motorcycle: 2010 GL1800
2004 Suzuki DR200

Re: 1800 Speedometer Accuracy

Post by DaveO430 » Wed Feb 14, 2018 10:05 pm

bryanw1 wrote:
Wed Feb 14, 2018 8:25 pm
Thanks. I didn't know they had changed much of anything.
They didn't, much. Don't know what made them adjust the speedometer, I would have been happier if they had also corrected the odometer.

User avatar
AZgl1800
Posts: 1194
Joined: Thu Oct 30, 2008 2:46 pm
Location: Lake Oologah Indian Territory USA
Motorcycle: '02 GL1800

Re: 1800 Speedometer Accuracy

Post by AZgl1800 » Wed Feb 14, 2018 10:55 pm

on my '02, the Odometer is pretty close, a litte bit generous, but not by much.

I compared the offset over 1,200 miles and it was like less than 1%

Now the Speedo?

oh man alive, at 70 mph GPS actual, the Speedo is registering nearly 80 mph...

IIRC, it is like 6.5 to 7 mph fast at 70 actual.
~John

bryanw1
Posts: 16
Joined: Thu Jan 04, 2018 12:08 am
Location: Grantsville, Utah
Motorcycle: 2001 Goldwing 1800
2017 Goldwing 1800

Re: 1800 Speedometer Accuracy

Post by bryanw1 » Wed Feb 14, 2018 11:15 pm

My '01 shows 73 or 74 at 70. I haven't checked the odometer on the '17 yet. I just assumed that since the speedo is right on and they are driven off the same cable they would be the same. It's irritating though. I've heard it said that they show them fast because they want to slow down the bikes. That's stupid. I have had two Toyota Prius that reads one mph fast. Small difference, but the irritating thing is the car knows how fast it's actually going. It has GPS input. And the computed data that shows average speed is exactly correct.

User avatar
dtrider
Posts: 262
Joined: Tue Sep 23, 2014 12:44 am
Location: Meridian, Id
Motorcycle: 2012 GL1800

Re: 1800 Speedometer Accuracy

Post by dtrider » Thu Feb 15, 2018 11:47 am

My '12 typically shows about 5MPH fast at 60 on the GPS. That's with the standard 180/60R16 rear tire. For a while I was running with the larger 180/70R16 and I noticed that the speedometer was closer to agreement with the GPS. At the time I didn't think to check the accuracy of the odometer.
/dwight
Every day is a good day for a bike ride. Some days are just better than others.

DaveO430
Posts: 927
Joined: Fri Jan 02, 2015 7:28 pm
Location: Amity. Ar
Motorcycle: 2010 GL1800
2004 Suzuki DR200

Re: 1800 Speedometer Accuracy

Post by DaveO430 » Thu Feb 15, 2018 1:44 pm

dtrider wrote:
Thu Feb 15, 2018 11:47 am
My '12 typically shows about 5MPH fast at 60 on the GPS. That's with the standard 180/60R16 rear tire. For a while I was running with the larger 180/70R16 and I noticed that the speedometer was closer to agreement with the GPS. At the time I didn't think to check the accuracy of the odometer.
/dwight
I guess they didn't fix all of them. A friend of mine bought a new 2012 and it was dead on.

User avatar
bstig60
Posts: 1012
Joined: Sat Jun 29, 2013 9:14 pm
Location: Sharpes, FL.
Motorcycle: 2003 GL 1800
2005 ST 1300
1999 Virago XV1100LC
Luggage Trailer, 2014 Home Made
1983 XJ 750 Seca Tour Model w/ hard bags and trunk
1987 Honda TLR 200
Contact:

Re: 1800 Speedometer Accuracy

Post by bstig60 » Sun Feb 25, 2018 12:55 pm

dtrider wrote:
Thu Feb 15, 2018 11:47 am
My '12 typically shows about 5MPH fast at 60 on the GPS. That's with the standard 180/60R16 rear tire. For a while I was running with the larger 180/70R16 and I noticed that the speedometer was closer to agreement with the GPS. At the time I didn't think to check the accuracy of the odometer.
That's what I was told; the 70 series rear tire will correct the speedo inaccuracies. I am going to the larger tire when I replace my current rear tire.....
Bill

User avatar
Snowmoer
Posts: 79
Joined: Fri Jan 25, 2013 12:23 pm
Location: Cedar City UT
Motorcycle: 2012 GL 1800
1988 GL 1500
1977 GL 1000
2012 KLR 650

Re: 1800 Speedometer Accuracy

Post by Snowmoer » Sun Feb 25, 2018 4:20 pm

My 2012 is spot on with both the stock size tire and when I went to a CT.

Red Ron
Posts: 353
Joined: Thu May 20, 2010 1:13 pm
Location: Prestonsburg, KY; Edgewater FL
Motorcycle: '08, '13 GL1800
Rear-Yoko Avid Assend 195x60x16
Front-Battleaxe BT-45

Re: 1800 Speedometer Accuracy

Post by Red Ron » Tue Feb 27, 2018 5:55 pm

I heard they were correct from '12 on. On my '13 I have a 60 series CT. My GPS says that I am going a little faster than the speedo.

User avatar
joeincalif
Posts: 611
Joined: Sat Nov 22, 2014 10:39 am
Location: San Jacinto, Calif
Motorcycle: 1997 Gold Wing SE

Re: 1800 Speedometer Accuracy

Post by joeincalif » Mon Mar 19, 2018 10:16 am

bstig60 wrote:
Sun Feb 25, 2018 12:55 pm
dtrider wrote:
Thu Feb 15, 2018 11:47 am
My '12 typically shows about 5MPH fast at 60 on the GPS. That's with the standard 180/60R16 rear tire. For a while I was running with the larger 180/70R16 and I noticed that the speedometer was closer to agreement with the GPS. At the time I didn't think to check the accuracy of the odometer.
That's what I was told; the 70 series rear tire will correct the speedo inaccuracies. I am going to the larger tire when I replace my current rear tire.....
I put a 70 series tire on the back of my 08 Wing and it brought the speedo real close and I think the odometer was a couple miles lower when I check it at 100 miles, but that makes up for the 4 + miles it added ever 100 before the new tire!!
Image
IF YOUR BORN ONCE YOU WILL DIE TWICE
IF YOUR BORN TWICE YOU WILL DIE ONCE

Red Ron
Posts: 353
Joined: Thu May 20, 2010 1:13 pm
Location: Prestonsburg, KY; Edgewater FL
Motorcycle: '08, '13 GL1800
Rear-Yoko Avid Assend 195x60x16
Front-Battleaxe BT-45

Re: 1800 Speedometer Accuracy

Post by Red Ron » Thu Mar 22, 2018 12:01 pm

Best I can remember my '08 was off by about 4%. On my '13 with a 60 series CT my after market GPS actually says I am going a little faster than what the speedo indicates. So maybe they did correct it on the '12's and later.

DaveO430
Posts: 927
Joined: Fri Jan 02, 2015 7:28 pm
Location: Amity. Ar
Motorcycle: 2010 GL1800
2004 Suzuki DR200

Re: 1800 Speedometer Accuracy

Post by DaveO430 » Thu Mar 22, 2018 3:27 pm

Red Ron wrote:
Thu Mar 22, 2018 12:01 pm
Best I can remember my '08 was off by about 4%. On my '13 with a 60 series CT my after market GPS actually says I am going a little faster than what the speedo indicates. So maybe they did correct it on the '12's and later.
Actually 09 and later.

User avatar
themainviking
Posts: 3224
Joined: Wed Sep 29, 2010 6:59 pm
Location: North Bay, Ontario, Canada
Motorcycle: 2009 GL1800 AD
1987 Harley Softail Custom
1974 Harley FLH (sold)
1965 Harley FLHE (sold)
1957 Harley Chopper (sold)

Re: 1800 Speedometer Accuracy

Post by themainviking » Fri Mar 23, 2018 6:28 am

DaveO430 wrote:
Thu Mar 22, 2018 3:27 pm
Red Ron wrote:
Thu Mar 22, 2018 12:01 pm
Best I can remember my '08 was off by about 4%. On my '13 with a 60 series CT my after market GPS actually says I am going a little faster than what the speedo indicates. So maybe they did correct it on the '12's and later.
Actually 09 and later.
09 and later U.S. Models only. My Canuckian 09 is still about 4% off with brand new tires. Gets worse as the tires wear down, but only to about 5% by worn out.
It ain't about the destination - it's all about the journey

Image

User avatar
AZgl1800
Posts: 1194
Joined: Thu Oct 30, 2008 2:46 pm
Location: Lake Oologah Indian Territory USA
Motorcycle: '02 GL1800

Re: 1800 Speedometer Accuracy

Post by AZgl1800 » Fri Mar 23, 2018 9:08 am

IF you have a cellphone, you can install a GPS speed app on it,

I use this one

https://play.google.com/store/apps/deta ... id.digihud

and this one

https://play.google.com/store/apps/deta ... peedometer
~John

User avatar
GoldWingrGreg
Posts: 244
Joined: Tue Aug 24, 2010 7:18 am
Location: Zephyrhills, Florida
Motorcycle: 89 GL1500
03 GL1800
04 GL1800(abs)
05 GL1800(abs)
07 GL1800(abs)

Re: 1800 Speedometer Accuracy

Post by GoldWingrGreg » Fri Mar 23, 2018 12:15 pm

It took a class action law suit on the car side for Honda to fix speedos on the m/c side. Apparently this is what happened. On the car side, they had a 3yr 36,000 warranty. Some cars had warranty problem shortly after going over 36,000 miles but still within the 3 yrs, and Honda was denying their warranty claims. The argument became ... "if the speedo did not have a 10% error factor, that they'd be under 36k and within the warranty period.

DaveO430
Posts: 927
Joined: Fri Jan 02, 2015 7:28 pm
Location: Amity. Ar
Motorcycle: 2010 GL1800
2004 Suzuki DR200

Re: 1800 Speedometer Accuracy

Post by DaveO430 » Fri Mar 23, 2018 12:28 pm

GoldWingrGreg wrote:
Fri Mar 23, 2018 12:15 pm
It took a class action law suit on the car side for Honda to fix speedos on the m/c side. Apparently this is what happened. On the car side, they had a 3yr 36,000 warranty. Some cars had warranty problem shortly after going over 36,000 miles but still within the 3 yrs, and Honda was denying their warranty claims. The argument became ... "if the speedo did not have a 10% error factor, that they'd be under 36k and within the warranty period.
Since Goldwings have an unlimited mileage warranty that is not a factor. In 98-02 models Honda (cars) had a lot of trans failures so they extended the warranty to 100,000 miles and after the class action it became 109,000.

User avatar
WingMan71
Posts: 35
Joined: Thu Sep 26, 2013 12:04 pm
Location: Atlanta, GA
Motorcycle: 2006 GL1800
1987 GL1200 Aspencade
1976 GL1000 LTD
1971 CL100S Scrambler

Re: 1800 Speedometer Accuracy

Post by WingMan71 » Sat Mar 31, 2018 9:12 am

I got tired of guessing how fast I was going on my '06 GL1800, so I fixed it with this:

a Healtech SpeedoHealer, here:

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

Great product that solves the problem. Lots of cool features including being able to store two different calibrations for example for two different size tires. Costs about $100.00, and worth every penny.

They also have a gear position indicator that I put on my bike as well. Come on Honda, you make a $25K bike and don't put a gear position indicator on it. Heck, my '87 GL1200 has a gear position indicator on it!

***



Post Reply