Thread: Exceedig maximum 65psi
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Old 07-07-14 | 09:53 AM
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Retro Grouch
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From: St Peters, Missouri

Bikes: Catrike 559 I own some others but they don't get ridden very much.

Originally Posted by davidad
Higher pressures doesn't mean lower rolling resistance. The sidewall pressure is 1/2 the pressure that will blow the tire off of the rim. Use this chart: http://www.bikequarterly.com/images/BQTireDrop.pdf
Where did you get that 1/2 blow off pressure number? I think that it's an "old bike riders fable". Maybe whoever started it is dead now.

1/2 of the tire/rim interface is the rim. For that number to be true there would have to be an industry document somewhere that specified a standard rim for testing tire blow off pressure. I've seen that 1/2 blow off pressure thing bandied about a lot but nobody has ever been able to answer my question about it's origin.
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