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Subject :Pladehjul !?.. 2010-07-31 16:21:36

Ango
Hej alle

hvad er holdningen: skal man køre med pladehjul på cykelruten ??
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Subject :Re:Pladehjul !?.. 2010-07-31 16:30:20

OscarH
Kort svar: JA!
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Subject :Re:Pladehjul !?.. 2010-08-02 17:01:08

henrikmolsen

Guest
er det ikke kun en fordel hvis man kan holde de 40 i snit?
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Subject :Re:Re:Pladehjul !?.. 2010-08-03 09:32:21

KONA KEN

Guest
henrikmolsen Wrote on 2010-08-02 15:01:08:
er det ikke kun en fordel hvis man kan holde de 40 i snit?

nei tidspbesparelsen i minutter er større jo saktere man sykler.
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Subject :Re:Pladehjul !?.. 2010-08-03 09:52:44

ThomasRohde
Would be interesting to see some mathematical evidence on two last posts >;)

Anyway - as the wind (in Denmark anyway) will never be constant for a sustainable period of time (and add on top of that turns, going north, going south, etc), believe it must be rather chaotic (as with most fluid physics).

However, fact is that the drag (or wind resistance if you will) initially (and in it's most simple form) is determined by the cross sectional area of the specified item, and the square of the velocity ... so going slower should decrease drag, but not necessarily get you get to T2 faster <g>

T
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Subject :Re:Pladehjul !?.. 2010-08-03 11:47:05

mifsud
But since wind restitance is propotional with speed the improvement by using disc wheels, aero helmets and so on increases with speed.
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Subject :Re:Pladehjul !?.. 2010-08-03 16:56:22

ThomasRohde
My point excactly Mifsud, except the drag is not on direct proportional, but direct SQUARE proportional... Hence, even worse, once you go faster o.O
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