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.
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.
On Wed, 30 Mar 2005 06:36:05 -0700, Mark Hickey <mark@habcycles.com> may have said:
smokva <smokvaMAKNI@OVOgmx.net> wrote:>
"S o r n i" <NoSpamSorniNoSpam@SpamMeNotBot.san.rr.com> 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.
On Wed, 30 Mar 2005 16:57:02 GMT, Retroed Bob <uctraingNOSPAMO@ultranet.com> wrote:
On Wed, 30 Mar 2005 08:59:55 -0600, Werehatrack><rault00@earthWEEDSlink.net> 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.
