speedometer error - Yamaha FZ6 Forums - International FZ6 Motorcycle Community Forum

05-03-2007, 11:15 AM

I read on one of the forums about the speedometer errors.Very interesting.
I wondered why I was always getting passed on the expressway. It is good to know that it is about ten mph slow.Went for a short ride but the smoke is bad here from the forest fires near hear in southeast georgia.It has burned close to 100,000 acres so far and still burning. Hope it rains soon. But not too much so we can get in some good ride time before it gets so hot.

pchbreeze · 06-22-2007, 01:14 PM

You should do your best to go with the flow of traffic at all times, even if it means speeding. Only look at the speedometer if you're going faster than others.

06-22-2007, 01:25 PM

Somewhat similar, I subscribe to the belief that as a rider, I want to be going slightly faster than surronding traffic. This allows me to choose the places where I will pass, and allows more control of the lane area around me.

I believe it is just one more thing putting the odds further in my favor to make it home.

06-22-2007, 06:00 PM

I'm with writeme43 on this one, I prefer to always be overtaking traffic. besides if you go fast enough the objects in your mirror no longer matter!!!

I tested the speedo error this morning! I was riding to work on the expressway at 3:30 a.m. normally there is no real traffic. this morning I came up on a pack of cages doing a speedo indicated 68mph. the posted speed limit is 65mph. I began to split the pack, as I got to the lead car that was causing the bottleneck, just as I thought it was a CHP! seeing how lane splitting is legal in CA. and to easily pass the traffic I was going 77mph,I decided to continue my pass and split the cop and the poor sap to scared to go the posted limit just because the cop was sandbagging. as I pulled away from the cop he left the pack of cars and blew past me. apparently I ruined his fun or a new dounut shop just opened, but either way if he was looking to give me a ticket if the speedo was accurate I would have been 12mph over the posted limit. as is he did nothing.

beverlykarl · 07-18-2007, 07:37 PM

i don't look much on the speedo. lol. as long i overtake and enjoy the road thats fine with me. you would know your limit anyway,.

VEGASRIDER · 07-18-2007, 08:18 PM

I thought splitting lanes were legal in California only if you are going under a certain speed limit like 35mph, or is it any speed, am I wrong?

07-19-2007, 10:23 PM

Quote:

Originally Posted by VEGASRIDER

I thought splitting lanes were legal in California only if you are going under a certain speed limit like 35mph, or is it any speed, am I wrong?

theres no speed limit for splitting lanes, at the DMV they call it lane sharing, its perfectly legal. (thats one good thing about CA.)

VEGASRIDER · 07-19-2007, 11:13 PM

theres no speed limit for splitting lanes, at the DMV they call it lane sharing, its perfectly legal. (thats one good thing about CA.)

Cool........can't wait to ride in California!

09-23-2007, 06:41 AM

I GPS'd my speedo a while back, it was 3 MPH fast at a true 65.

**Botch** · 09-23-2007, 02:16 PM

I can't quite understand why there'd be any error on a speedometer. There's a straight linear relationship between engine rpm and wheel rpm, and again between wheel rpm and bike velocity.
That should be cake to calibrate. And if the speedometer is accurate below a certain mph threshold, it should remain accurate above that threshold, too.

05-03-2007, 11:15 AM	#1
yamabunky Guest Posts: n/a	speedometer error I read on one of the forums about the speedometer errors.Very interesting. I wondered why I was always getting passed on the expressway. It is good to know that it is about ten mph slow.Went for a short ride but the smoke is bad here from the forest fires near hear in southeast georgia.It has burned close to 100,000 acres so far and still burning. Hope it rains soon. But not too much so we can get in some good ride time before it gets so hot. Last edited by yamabunky; 05-03-2007 at 11:18 AM. Reason: left out sentence

06-22-2007, 06:00 PM	#4
sportrider Guest Posts: n/a	I'm with writeme43 on this one, I prefer to always be overtaking traffic. besides if you go fast enough the objects in your mirror no longer matter!!! I tested the speedo error this morning! I was riding to work on the expressway at 3:30 a.m. normally there is no real traffic. this morning I came up on a pack of cages doing a speedo indicated 68mph. the posted speed limit is 65mph. I began to split the pack, as I got to the lead car that was causing the bottleneck, just as I thought it was a CHP! seeing how lane splitting is legal in CA. and to easily pass the traffic I was going 77mph,I decided to continue my pass and split the cop and the poor sap to scared to go the posted limit just because the cop was sandbagging. as I pulled away from the cop he left the pack of cars and blew past me. apparently I ruined his fun or a new dounut shop just opened, but either way if he was looking to give me a ticket if the speedo was accurate I would have been 12mph over the posted limit. as is he did nothing. Last edited by sportrider; 06-22-2007 at 06:02 PM.

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06-22-2007, 01:14 PM	#2
pchbreeze Custom Abuser Bike: beach fighter Join Date: Jun 2007 Location: Huntington Beach Posts: 641 Thanks: 113 Thanked 65 Times in 38 Posts Rep Power: 19 Feedback Score: 0 reviews	You should do your best to go with the flow of traffic at all times, even if it means speeding. Only look at the speedometer if you're going faster than others.

06-22-2007, 01:25 PM	#3
wrightme43 Guest Posts: n/a	Somewhat similar, I subscribe to the belief that as a rider, I want to be going slightly faster than surronding traffic. This allows me to choose the places where I will pass, and allows more control of the lane area around me. I believe it is just one more thing putting the odds further in my favor to make it home.

07-18-2007, 07:37 PM	#5
beverlykarl Junior Member Join Date: Jul 2007 Posts: 5 Thanks: 0 Thanked 0 Times in 0 Posts Rep Power: 0 Feedback Score: 0 reviews	i don't look much on the speedo. lol. as long i overtake and enjoy the road thats fine with me. you would know your limit anyway,.

07-18-2007, 08:18 PM	#6
VEGASRIDER MSF Safety Instructor Bike: 2006 Blue FZ6 Join Date: May 2007 Location: LAS VEGAS NV USA Posts: 3,203 Thanks: 683 Thanked 1,669 Times in 749 Posts Rep Power: 65 Feedback Score: 0 reviews	I thought splitting lanes were legal in California only if you are going under a certain speed limit like 35mph, or is it any speed, am I wrong?

07-19-2007, 11:13 PM	#8
VEGASRIDER MSF Safety Instructor Bike: 2006 Blue FZ6 Join Date: May 2007 Location: LAS VEGAS NV USA Posts: 3,203 Thanks: 683 Thanked 1,669 Times in 749 Posts Rep Power: 65 Feedback Score: 0 reviews	theres no speed limit for splitting lanes, at the DMV they call it lane sharing, its perfectly legal. (thats one good thing about CA.) Cool........can't wait to ride in California!

09-23-2007, 06:41 AM	#9
Rich Guest Posts: n/a	I GPS'd my speedo a while back, it was 3 MPH fast at a true 65.

09-23-2007, 02:16 PM	#10
Botch I.Y.A.A.Y.A.S!! Bike: FZ-6, 2007 Blue Join Date: Jun 2007 Location: Ogden UT Posts: 2,174 Thanks: 381 Thanked 799 Times in 412 Posts Rep Power: 47 Feedback Score: 0 reviews	I can't quite understand why there'd be any error on a speedometer. There's a straight linear relationship between engine rpm and wheel rpm, and again between wheel rpm and bike velocity. That should be cake to calibrate. And if the speedometer is accurate below a certain mph threshold, it should remain accurate above that threshold, too.