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#1
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Does slippery rim tape increase or decrease rolling resistance?
Does slippery rim tape (or electrical tape, for that matter), increase
or decrease rolling resistance? Why? cheers, J |
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#2
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On Tue, 29 Mar 2005 20:04:17 -0800, "Jens Kurt HEYCKE" jkheycke @at@
yahoo.com wrote: Does slippery rim tape (or electrical tape, for that matter), increase or decrease rolling resistance? No. Why? There is no significant flexure of anything at that interface, and there had damned well better not be any slippage of anything when the tube is inflated. -- Typoes are a feature, not a bug. Some gardening required to reply via email. Words processed in a facility that contains nuts. |
#3
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Jens Kurt HEYCKE wrote:
Does slippery rim tape (or electrical tape, for that matter), increase or decrease rolling resistance? Why? Increases it by .0023%. Why? Because the air molecules inside the tire move around just a tad more, which adds a smidge of draggage as the tread is displaced ever so slightly (mostly sideways, but also radially). You can remedy this by stretching a number of tacky rubber bands around the slippy rim strip; or even more simply, by pouring some soda or hot soup in the tire and sloshing (noodling?) it around. HTH, BS (OK, in this case...yeah) |
#4
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"S o r n i" wrote:
Increases it by .0023%. You are wrong...the number is much bigger. It is 0.0230007% |
#5
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smokva wrote:
"S o r n i" wrote: Increases it by .0023%. You are wrong...the number is much bigger. It is 0.0230007% Ahhhh, but at what altitude? Mark Hickey Habanero Cycles http://www.habcycles.com Home of the $695 ti frame |
#6
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On Wed, 30 Mar 2005 06:36:05 -0700, Mark Hickey
may have said: smokva wrote: "S o r n i" wrote: Increases it by .0023%. You are wrong...the number is much bigger. It is 0.0230007% Ahhhh, but at what altitude? The color of the tire must also be taken into account. Blue tires cause more doppler drag than red. -- My email address is antispammed; pull WEEDS if replying via e-mail. Typoes are not a bug, they're a feature. Words processed in a facility that contains nuts. |
#7
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On Wed, 30 Mar 2005 16:57:02 GMT, Retroed Bob
wrote: On Wed, 30 Mar 2005 08:59:55 -0600, Werehatrack wrote: The color of the tire must also be taken into account. Blue tires cause more doppler drag than red. Whoa. Let's back up. He also said "by pouring some soda or hot soup in the tire and sloshing (noodling?) it around." I would suggest there is a big difference in adhesion using the soda vs. the soup. Coke may actually be sticker when dried than rim tape. Coke won't dry inside the tire. OTOH, the starches in the noodles might polymerize and cause the apparent viscosity to increase. Also, fermentation byproducts may cause the tire's pressure to rise; I doubt that Coke will ferment in that situation. None of this, however, addresses the issue of the increased rotating mass and its effect on the balance of power in the Balkans. -- Typoes are a feature, not a bug. Some gardening required to reply via email. Words processed in a facility that contains nuts. |
#8
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Not just altitude, you must also take into account air temp and humidity or dew point temperature. |
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