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One for the mathematicians

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One for the mathematicians
DavidB Offline
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Joined: Aug 2017 Posts: 17 Threads: 4
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#1
04-01-2018, 09:57 AM
Currently I run 17” wheels with Longstone tyres - 652 mm diameter. At 5500 rpm this equates to 73 mph.
If I switched to 19” wheels and 669 mm tyres, what speed would this produce?
Am I simplifying things by assuming that as the difference is only 2.5% the speed would only increase to 75 mph or is there more to it? I have a feeling that pi and other long forgotten things may come into it!
Thank you for any answers.
David.
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Messages In This Thread
One for the mathematicians - by DavidB - 04-01-2018, 09:57 AM
RE: One for the mathematicians - by Peter Naulls - 04-01-2018, 10:11 AM
RE: One for the mathematicians - by JonE - 04-01-2018, 10:26 AM
RE: One for the mathematicians - by Alan - 04-01-2018, 10:26 AM
RE: One for the mathematicians - by Chris KC - 04-01-2018, 11:00 AM

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