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Buell Forum » Knowledge Vault (tech, parts, apparel, & accessories topics) » Troubleshooting (Poor Starting/Running/Handling/Ride Issues) » 06 XB12X Speedometer Inaccuracy « Previous Next »

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Longhorn
Posted on Friday, March 20, 2015 - 01:44 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

I have seen info on the Uly speedometer inaccuracy before on here but not finding it now. Just wanting to know what the MPH difference is.
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Froggy
Posted on Friday, March 20, 2015 - 01:57 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Speedometer accuracy will vary a bit depending on your tires. Different tires, even from the same brand and even with the same size (180/55/17) will have small differences in overall diameter. Bigger tires will make the speedometer read a little slow, smaller tires will read a little fast.

Anyway, based on my experience, most tires will make the speedometer read about 3MPH fast at highway speeds, with getting progressively more inaccurate as you speed up. Best way to confirm is using a GPS on the freeway, hold a fixed speed for a mile and seeing what the GPS says vs the speedometer.

Another alternative is to ride side by side next to a late model Honda Civic, they have giant speedometers and you can easily see how fast they are going.
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Longhorn
Posted on Friday, March 20, 2015 - 02:36 pm:   Edit Post Delete Post View Post/Check IP Print Post    Move Post (Custodian/Admin Only) Ban Poster IP (Custodian/Admin only)

Thank You
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