Odometer off, speedometer too?
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From: Honah Lee
That's because you beat it off the end stop.
Road Master
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From: LA Ca.
I have a bike that the speedo is exact per the GPS on my phone with a brand new tire (Bridgestone S11 120/90-18). When it's worn out, the speedo reads a few (two or three IIRR) mph faster.
Just my 2 cents,
Tom
Just my 2 cents,
Tom
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From: Honah Lee
I'll PayPal you the 48 cents if necessary.
And here I thought I had rounder straight and he just swung away at Tom's curve ball with a 'Like'.
I know.. save you guys the trouble.
Last edited by Jackie Paper; Jul 25, 2023 at 08:09 PM.
Road Master
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From: LA Ca.
IIRR= If I Remember Right. IIRC= If I Remember Correctly, a little more sure than IIRR.
I'm not going to do the math. But.......
A new tire is X amount circumference. When new, it is larger and spins X times to go a distance. When the circumference gets smaller with a worn tire, it takes more turns to go the same distance.
Also. a X tire size from different tire brands will/may have a different circumference. So one brand your speedo could be exact. Another brand it could be off a bit. Change tire sizes and your speedo will be off.
Think of a auto with stock factory tires. The MFG "probably" set the speedo to that size, with brand new tires, not half worn or the like. Now add some monster mudders to it and the speedo will not be correct per factory. You'll be showing (for instance) 60mph on the speedo when your doing 70mph per GPS with the monster mudders. Not to mention the brakes will not work as well.
I do hope I explained this well,
Tom
I'm not going to do the math. But.......
A new tire is X amount circumference. When new, it is larger and spins X times to go a distance. When the circumference gets smaller with a worn tire, it takes more turns to go the same distance.
Also. a X tire size from different tire brands will/may have a different circumference. So one brand your speedo could be exact. Another brand it could be off a bit. Change tire sizes and your speedo will be off.
Think of a auto with stock factory tires. The MFG "probably" set the speedo to that size, with brand new tires, not half worn or the like. Now add some monster mudders to it and the speedo will not be correct per factory. You'll be showing (for instance) 60mph on the speedo when your doing 70mph per GPS with the monster mudders. Not to mention the brakes will not work as well.
I do hope I explained this well,
Tom
Last edited by Tom H; Jul 25, 2023 at 09:27 PM.
Seasoned HDF Member
Joined: Mar 2010
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From: Honah Lee
Least we got the IIRR straight. The judgement now falls on Rounders take on some how new tires now showed up in the IIRC.
I'm at Mr W.C. Fields'
If you can't DTWB, BTWBS.
I'm at Mr W.C. Fields'
If you can't DTWB, BTWBS.
Last edited by Jackie Paper; Jul 26, 2023 at 02:23 AM.
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From: NY
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From: Masshole
Since when do Harley's have any warranty mileage constraints? 2 years, unlimited miles on new bikes. 1 year, unlimited miles on parts.
OP, speedo and odometer are tied together, they will both equally be off.
OP, speedo and odometer are tied together, they will both equally be off.
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From: backwoods
Go 100 mph for hour and find out
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From: Honah Lee
One told me I was depriving my family. He knew it was all over when the wife fell out of the chair laughing hysterically.
Why is the FP worrying about 3%. I actually thought I knew.
Last edited by Jackie Paper; Jul 26, 2023 at 11:06 AM.
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Joined: May 2021
Posts: 19
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From: Florida
Where does the speed reading come from... Front wheel, rear wheel. My sportster picks up the speed from a transmission gear... So changing the rear wheel tire makes a difference... other bikes pick it up from the front...
I have a 2017 dyna..
I have a 2017 dyna..