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2017 CB1100EX Speedometer error?
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3rdbike Offline
1st Service Completed

Albuquerque, NM USA
Posts: 55
Joined: Dec 2017
Post: #1
2017 CB1100EX Speedometer error?
I ran a search on this, found two threads with those words in the text, but the subject was how tire size might affect speedo reading.

My question is: has anybody determined if the 2017 EX speedometer is accurate? Reasons for asking: motorcycle speedometers have traditionally been 5 - 10% fast, and keeping up with traffic on I-40 (the freeway) here in Albuquerque, my speedo is reading 75 - 80 mph. The speed limit is 65mph. Am I naïve, and/or giving too much benefit of doubt to these cag(ahem) drivers? Or, is this simply the usual motorcycle speedo error?
12-18-2017 03:11 PM
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The ferret Online
Forum Moderator

Ohio
Posts: 18,758
Joined: Apr 2013
Post: #2
RE: 2017 CB1100EX Speedometer error?
Can't speak for the 17 but my 14 seems fairly accurate. I've never GPSd it though.

.
2014 DLX and 2006 ST 1300
"a good chunk of life's problems can be solved by going for a ride"...Guth ..... "daily" ...Ferret
12-18-2017 03:39 PM
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tinboatcapt Offline
1st Service Completed

Minnesota, USA
Posts: 77
Joined: Mar 2017
Post: #3
RE: 2017 CB1100EX Speedometer error?
Every bike I have ridden, and had a gps to check the accuracy of the speedo has shown 5-7% error. The exception was the BMW K100's which had a way to adjust to fine tune the reading.

A way to roughly check accuracy is to use the mile markers and the clock. @ 60 mph you are moving 1 mile per minute. On a rural stretch of interstate, preferably. So, in ten minutes at 60 mph - 10 miles, at 66 mph- 11 miles, at 72 mph - 12 miles, etc.

As to the traffic in town, around here 10 to 15 over the posted is pretty normal. Riding at the limit will get one run down from behind. I avoid the interstate slab like a slow root canal with out Novocain.
Jim

2014 CB1100 Std
2000 ST1100
1981 CB650C
12-18-2017 06:18 PM
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pdedse Offline
Running Like a Top

Oregon
Posts: 500
Joined: Dec 2013
Post: #4
RE: 2017 CB1100EX Speedometer error?
Everytime I ride by one of those contraptions that show you your speed, my '14 cb is dead on.
12-18-2017 06:41 PM
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Nortoon Offline
Running Like a Top

Ottawa, Ontario, Canada
Posts: 726
Joined: Jan 2015
Post: #5
RE: 2017 CB1100EX Speedometer error?
There was also a post about this on the CB500X Forum a couple of years ago. It was found the American speedometers were accurate in MPH, but the Canadian speedometers in KPH were optimistically out by 6%.

The flashing road side KPH signs show that my CB1100 EX is also optimistically fast. I already knew that from riding on divided 4-lane highways. Ordinarily most people will drive their cars 10 to 15 KPH faster than the 100 KPH speed limit. But I have to ride about 120 KPH to keep up.

On 2 lane highways the speed limit is 80 KPH, but most people drive 90 KPH. I have to ride at 95 KPH to avoid being tailgated.

Canada's 2 lane highways use to have a speed limit of 60 MPH (100 KPH). But when Canada converted to the metric system, they were reduced to 80 KPH (55 MPH). Nobody noticed.

Now the price of gasoline fluctuates between $1.00 to $1.15 per liter, and Canadians accept that as normal. However if the metric system had not been used, gas would be $4.55 to $5.25 an Imperial gallon and people would be screaming.

Actually people do complain about paying $1.00 per liter for gas. A product that has to be drilled out of the earth as oil, piped to an American refinery, shipped back to Canada to holding tanks, and delivered by trucks to gas stations. But think nothing of paying $1.50 at a gas station for 1/2 liter bottle of water, something that is available from any tap. Huh

2017 CB1100 EX
(This post was last modified: 12-19-2017 06:54 AM by Nortoon.)
12-19-2017 06:50 AM
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Houtman Offline
High Mileage

NC USA
Posts: 879
Joined: May 2013
Post: #6
RE: 2017 CB1100EX Speedometer error?
Even worse :I have paid $ 5.00 for 1 1/2 oz. of whiskey !
12-19-2017 07:36 AM
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W/R Online
1st Service Completed

New Brunswick, Canada
Posts: 180
Joined: May 2017
Post: #7
RE: 2017 CB1100EX Speedometer error?
(12-19-2017 06:50 AM)Nortoon Wrote:  There was also a post about this on the CB500X Forum a couple of years ago. It was found the American speedometers were accurate in MPH, but the Canadian speedometers in KPH were optimistically out by 6%.

The flashing road side KPH signs show that my CB1100 EX is also optimistically fast. I already knew that from riding on divided 4-lane highways. Ordinarily most people will drive their cars 10 to 15 KPH faster than the 100 KPH speed limit. But I have to ride about 120 KPH to keep up.

On 2 lane highways the speed limit is 80 KPH, but most people drive 90 KPH. I have to ride at 95 KPH to avoid being tailgated.

Canada's 2 lane highways use to have a speed limit of 60 MPH (100 KPH). But when Canada converted to the metric system, they were reduced to 80 KPH (55 MPH). Nobody noticed.

Now the price of gasoline fluctuates between $1.00 to $1.15 per liter, and Canadians accept that as normal. However if the metric system had not been used, gas would be $4.55 to $5.25 an Imperial gallon and people would be screaming.

Actually people do complain about paying $1.00 per liter for gas. A product that has to be drilled out of the earth as oil, piped to an American refinery, shipped back to Canada to holding tanks, and delivered by trucks to gas stations. But think nothing of paying $1.50 at a gas station for 1/2 liter bottle of water, something that is available from any tap. Huh

I refuse to buy bottled water if it can at all be avoided, I always carry a water bottle everywhere I go. So much cheaper.

2014 CB1100A
2009 Buell Ulysses XB12XT
2007 CRF450X
2003 HD Night Train with sidecar
12-19-2017 08:35 AM
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The ferret Online
Forum Moderator

Ohio
Posts: 18,758
Joined: Apr 2013
Post: #8
RE: 2017 CB1100EX Speedometer error?
I only drink bottled water (Ice Mountain brand to be specific). Can't stand the taste of tap water. I buy cases of Ice Mountain at Sam's and pay about 20 cents ea for a 16.9 oz bottle. I always have a bottle or two on my bike or in my truck.

I really don't like paying over $2.50 for a gallon of gas. My ST takes premium, and where the grades used to be 10 cents apart..say $2.50 for reg, $2.60 for mid grade and $2.70 for premium, they are now charging 60 cents more for premium over regular, so if reg is $2.50, Premium is now $3.10 a gallon which last less than an hour of riding.

.
2014 DLX and 2006 ST 1300
"a good chunk of life's problems can be solved by going for a ride"...Guth ..... "daily" ...Ferret
(This post was last modified: 12-19-2017 09:35 AM by The ferret.)
12-19-2017 09:31 AM
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RLS Offline
Break-In Period

Memphis, TN
Posts: 33
Joined: Aug 2017
Post: #9
RE: 2017 CB1100EX Speedometer error?
I speed everywhere I go. Hardly ever look at the speedometer. Riding (speeding) up to Jonesboro on Thursday to see about acquiring a new 2014 Valkyrie so I can enjoy speeding around on that too.
12-19-2017 11:00 AM
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Bheezy27403 Offline
1st Service Completed

Triad NC
Posts: 205
Joined: Sep 2015
Post: #10
RE: 2017 CB1100EX Speedometer error?
I think you'll like that Valk. Just a brief couple rides on one made me think about getting a bigger bike. I couldn't believe how nimble and light it felt when underway. And the torque...Thumbs Up
12-19-2017 12:27 PM
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