Speedometer accuracy.... - Kawasaki Versys Forum
 
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post #1 of 5 (permalink) Old 01-22-2009, 03:50 PM Thread Starter
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Speedometer accuracy....

Went for a long ride yesterday , so for those who want to know the 'error' in the Versys' speedo (and don't have a GPS), here it is (my "V" has stock gearing and tires):
- the speedo reads 7% HIGH ( ie - at 60 mph your actual is 55.8 mph).
In 6th gear the INDICATED speed per 1,000 RPM is 14 MPH, while the ACTUAL speed per 1,000 RPM is 13 MPH. So, a little math -
- 5,000 RPM INDICATES 70 MPH, but is ACTUALLY 65;
- 6,000 RPM INDICATES 84 MPH, but is ACTUALLY 78; or conversely
- 65 MPH INDICATED is ACTUALLY 60.35;
- 75 MPH INDICATED is ACTUALLY 69.64; and
- 80 MPH INDICATED is ACTUALLY 74.28.
Hope this helps those who hunger to know what their REAL speed is . For the rest of us - you're SAFE riding at the INDICATED speed limit .
Cheers,
Ed
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post #2 of 5 (permalink) Old 01-22-2009, 04:38 PM
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If you put a 16 tooth front sprocket on, the speedometer is just about dead on.

'09 Versys -Green

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post #3 of 5 (permalink) Old 01-22-2009, 04:44 PM Thread Starter
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Quote:
Originally Posted by dallasdon View Post
If you put a 16 tooth front sprocket on, the speedometer is just about dead on.
But (without getting into my service manual to check), I BELIEVE your odometer will go from spot on to being OUT by 6%. "Ya pays yer money and ya takes yer chances!"
Depends which is more important to you.
Ed
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post #4 of 5 (permalink) Old 01-22-2009, 05:16 PM
 
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Quote:
Originally Posted by fasteddiecopeman View Post
But (without getting into my service manual to check), I BELIEVE your odometer will go from spot on to being OUT by 6%. "Ya pays yer money and ya takes yer chances!"
Depends which is more important to you.
Ed
Even the odo is not "spot on" with the stock setup, although it's close enough to not quibble. I rode about 500 miles over the past weekend, and found that the odo was almost 1 mile optimistic every 100 miles. I've checked it before using a different gps and found the same error. This is pretty meaningless to me, but some folks may be dismayed in a year or two to find their 100,000 mile bikes actually have 101,000 miles.

BTW, my gps speed readings vs speedo readings are the same as yours. The speedo reads about 7-8% lower than actual at all speeds.
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post #5 of 5 (permalink) Old 01-22-2009, 05:32 PM
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Quote:
Originally Posted by Satex View Post
Even the odo is not "spot on" with the stock setup, although it's close enough to not quibble. I rode about 500 miles over the past weekend, and found that the odo was almost 1 mile optimistic every 100 miles. I've checked it before using a different gps and found the same error. This is pretty meaningless to me, but some folks may be dismayed in a year or two to find their 100,000 mile bikes actually have 101,000 miles.

BTW, my gps speed readings vs speedo readings are the same as yours. The speedo reads about 7-8% lower than actual at all speeds.
You mean higher. The speedo reads higher than you're actually going...



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