RPMs with actual speed readings - Kawasaki KLR 650 Forum
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post #1 of 10 Old 06-09-2013, 09:55 PM Thread Starter
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RPMs with actual speed readings

I've searched forums until I'm blue in the face. What RPMs can I expect with stock sprockets at 65 mph or so? I've heard 4500 at 65 mph and I can only assume that is indicated on speedometer, and not true by GPS. My speedometer shows 65 mph at 4500 rpms, but according to my GPS my speedometer is off and it will show an indicated speed of about 71 mph at an actual GPS speed of 65 mph. That means I'm running about 4900 RPMs (give or take some) at an actual 65 mph. I have all stock sprockets. Thanks for any help.
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post #2 of 10 Old 06-09-2013, 10:03 PM
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That is nearly exactly what mine reads. The KLR speedo is known to read about 5mph too high. Has to do with federal law not allowing speedos to read too low. There have been other reports of the inaccuracy of KLR speedos on this site. Try a search to see what comes up!
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post #3 of 10 Old 06-09-2013, 11:20 PM
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Same as mine as well. Lol, I was surprised how far out it is. When my speedo cable broke and I was using my GPS for speed, a fellow that I work with that lives in the same area commented that I was going much faster than I usually do... Lol!

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post #4 of 10 Old 06-10-2013, 08:51 AM
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I think the Excel file here has the calculated speeds in fifth gear for various RPM.

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post #5 of 10 Old 06-11-2013, 01:50 AM Thread Starter
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Awesome, thanks for the help!
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post #6 of 10 Old 06-11-2013, 06:53 AM
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I noticed that when I was going up country the other morning, with a brisk head wind, and my Saddle bags on, that my tach was reading a little higher than if I didn't have bags on, and no head wind. Pushing more "frontal-mass" and bucking wind, changes readings some.

Make sure you compare in similar conditions.

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post #7 of 10 Old 06-11-2013, 10:53 AM
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Quote:
Originally Posted by 650Stew View Post
Same as mine as well. Lol, I was surprised how far out it is. When my speedo cable broke and I was using my GPS for speed, a fellow that I work with that lives in the same area commented that I was going much faster than I usually do... Lol!

When I first got my '08 I was wondering why I was getting tailgated all the time! Then I got a GPS! My speedo is off 10% or was until I installed my 19" front. Now it's about 12% I think.

The odometer legally has to be accurate and that's why it's directly driven. The speedo in the KLR is picked up magnetically and it varies from bike to bike. There are no laws requiring a speedo to show faster than actual speed. WTH would that even accomplish?

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post #8 of 10 Old 06-12-2013, 04:47 PM
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Quote:
Originally Posted by Spec View Post
There are no laws requiring a speedo to show faster than actual speed. WTH would that even accomplish?
Dunno about any laws, but it would keep you for getting cited for going over the limit when if your speedo read slow.
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post #9 of 10 Old 06-12-2013, 05:26 PM
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Dunno about any laws, but it would keep you for getting cited for going over the limit when if your speedo read slow.

Stay off the California freeways if you're planning on riding slower than the speed limit, if you want to live.

Heck better stay off if you can't manage at least 10 over!

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post #10 of 10 Old 06-12-2013, 09:02 PM
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Quote:
Originally Posted by Spec View Post
When I first got my '08 I was wondering why I was getting tailgated all the time! Then I got a GPS! My speedo is off 10% or was until I installed my 19" front. Now it's about 12% I think.

The odometer legally has to be accurate and that's why it's directly driven. The speedo in the KLR is picked up magnetically and it varies from bike to bike. There are no laws requiring a speedo to show faster than actual speed. WTH would that even accomplish?
varies from bike to bike, yea--I didn't check mine before I went to a 16t but since then I've checked with the cops speedometer that seem to be set all over the place these days, and it reads pretty darn close.
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