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Author Topic: tire size conversion  (Read 5469 times)

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Offline 736cc

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tire size conversion
« on: November 05, 2009, 06:20:21 AM »
4.00x18 and 3.25x19 equals exactly what in metric sizing?
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Offline ColinMc

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Re: tire size conversion
« Reply #1 on: November 05, 2009, 08:07:02 AM »
http://www.usmotorcycletires.com/tire_size_conversion_chart.php


110/90/18
100/90/19

Not sure that's right but that's what I'm reading from that chart...
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nuggy00

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Re: tire size conversion
« Reply #2 on: November 05, 2009, 09:09:30 AM »
4 in = 101.6 millimeters so 100/X-18, not sure what standard sidewall heights are.
3.25 in = 82.55 millimeters so 80/x-19 or 90/x-19 depending the look and/or handling you want.
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Offline 333

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Re: tire size conversion
« Reply #3 on: November 05, 2009, 01:13:12 PM »
It doesn't work like that.  Use the chart Colin posted.
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