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

05-03-2007, 12:15 PM

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, 02:14 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.

**wrightme43** · 06-22-2007, 02:25 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.

**sportrider** · 06-22-2007, 07:00 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, 08:37 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, 09:18 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?

**sportrider** · 07-19-2007, 11:23 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 · 07-20-2007, 12:13 AM

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, 07:41 AM

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

**Botch** · 09-23-2007, 03:16 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, 12:15 PM	#1 (permalink)
yamabunky Guest Posts: n/a Member #	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 12:18 PM.. Reason: left out sentence

06-22-2007, 02:25 PM	#3 (permalink)
wrightme43 Super Sock Puppet Moderator Join Date: Apr 2007 Location: Bowling Green KY Bike: 07 FZ6 in Blue. Posts: 4,907 Rep Power: 71 Member #42	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. __________________ “Yes, socialism does not work, and they do not want it to work, because the less it works, the more government is needed. ”

06-22-2007, 07:00 PM	#4 (permalink)
sportrider Freeway Assassin Join Date: May 2007 Location: Redlands Ca.(can't see hell anymore) Bike: 2007 Yamaha YZFR1 Posts: 2,631 Rep Power: 10 Member #127	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. __________________ My Rider Resume America LOVE it or LEAVE IT former FZ6 test rider much of the action depicted here could rip your limbs off if done improperly.the riding discussed is done by an experianced rider in semi-controlled conditions, save the speed for the track. ride within your capibilities, concentrate and always wear protective gear, including a helmet, gloves, jacket, pants, and boots. I and the forum, forum staff, any combination of the words, forum, staff, thread, post, website, internet or member, are in no way responsible if you ride over your head and wad yourself up trying to recreate something you've read here. Last edited by sportrider; 06-22-2007 at 07:02 PM..

07-18-2007, 08:37 PM	#5 (permalink)
beverlykarl Junior Member Join Date: Jul 2007 Posts: 5 Rep Power: 0 Member #322	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,. __________________ Keep your A6 cool with Audi Fan Shrouds while making it looking good with Audi fender and keeping the road visible with Audi fog lights.

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06-22-2007, 02:14 PM	#2 (permalink)
pchbreeze Back in the saddle Join Date: Jun 2007 Location: Huntington Beach Bike: zzr14 Posts: 615 Rep Power: 13 Member #169	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.

07-18-2007, 09:18 PM	#6 (permalink)
VEGASRIDER Dedicated Member Join Date: May 2007 Location: LAS VEGAS NV USA Bike: 2006 Blue FZ6 Posts: 1,581 Rep Power: 33 Member #83	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?

07-20-2007, 12:13 AM	#8 (permalink)
VEGASRIDER Dedicated Member Join Date: May 2007 Location: LAS VEGAS NV USA Bike: 2006 Blue FZ6 Posts: 1,581 Rep Power: 33 Member #83	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, 07:41 AM	#9 (permalink)
Rich Guest Posts: n/a Member #	I GPS'd my speedo a while back, it was 3 MPH fast at a true 65.

09-23-2007, 03:16 PM	#10 (permalink)
Botch I.Y.A.A.Y.A.S!! Join Date: Jun 2007 Location: Ogden UT Bike: FZ-6, 2007 Blue Posts: 1,364 Rep Power: 20 Member #227	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.

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