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• #53652
Plus, if you've been doing it so long, and it works wonders, how come no one else has caught on?
edit: erm like what they said above, plus my comment.
Come on, if holes in tubes made bikes stiffer and faster, it'd be all over The Tour. Meh.
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• #53653
Are the holes meant to be more aero?
I can see where you're coming from in the parts of the bike that present frontal area to the wind ie fork legs, seat tube, (not saying I agree with either the concept or the execution though) and maybe I'm missing something but wouldn't the holes in the downtube present MORE frontal area and cause MORE drag rather than less?
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• #53654
Drilling holes in frames like that would add so much more time to the manufacture. Time=money. Money vs. added performance? Probably not worth it for a large company.
Yeah because it's not like the industry puts in inconcievable amounts of money and effort to innovate.
If time = money it would have been an awful lot quicker to just take a 30 year old steel frame and drill some random holes in it than to gradually change and tweak it until an aero frame looked like this
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• #53655
you guys are all ridiculous.
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• #53656
maybe I'm missing something but wouldn't the holes in the downtube present MORE frontal area and cause MORE drag rather than less?
It's for reduced downtube drag while wheelying, duh.
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• #53657
pick on me ffs. I don't care. But to come on here a criticize someones work so apologetically is just... well... it's just shitty.
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• #53658
correct. very labor intensive. Even more so in CF or other materials. UCI has become obsessed with making bikes look like they did 100 years ago.. stupid backwards thinking. Seems like drugs are OK, but not reducing wind drag, which would benefit all users.
regarding the small holes.. they are for a specific speed range and probably do increase drag at lower speeds.
Lips are in fact vortex generators to keep the air flow laminar on the surface of tubes.
unfortunately all your comments are wasted as this is all very illegal and until the UCI comes into the modern age.
As a general rule.. the bigger holes allow the air to pass through rather than using exotic Formula One like designs to control air around and on the surfaces. Not enough surface area or velocity to work well on a bicycle.
dave -
• #53659
Anyone have a geekhouse bike or know someone that has one? would be interested in hearing what they're like. Link below
http://velofixie.blogspot.com/2011/10/geekhouse-bikes-bit-different.html
A 'cycling' blog that only came across Geekhouse bikes in late 2011, and calls itself 'Velofixie'...Jesus on a bike.
You my friend... you.... -
• #53660
you guys are all ridiculous.
This^
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• #53661
hatersgonhate, drillersgondrill, testersgontest...
where is the love tonight?
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• #53662
drunk prolly
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• #53663
wish I was love drunk...
):
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• #53664
40K TT 47:35 John Frey
That's equivalent to 47:52 for 25 miles. Alex Dowsett beat that twice last year (by over a minute on his faster ride) on the less than perfect H25/8 just down the road from me. He must be kicking himself that he was on a crappy Trek Speed Concept without your amazing Drillium technology, which would surely have seen him thrash our National record of 45:54
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• #53665
correct me if I'm wrong, but isn't yours a one direction only race?
dave -
• #53666
No, it's out and back, strict limit on the distance between start and finish points. The RRA straight out 25 record is 40:50, but nobody bothers much with that these days.
1 Attachment
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• #53667
impressive ride then.. this US record has stood for 20 years. Send you guy over next Sept to the Paula Higgin's Memorial TT and show us how it's done.
BTW Berrill Burton was an early inspiration.
dave -
• #53668
Rainbows can fucking do one
heh
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• #53669
Dave, I like your holes.
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• #53670
Every hole's a goal.
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• #53672
unf mine came at 500...
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• #53673
unf mine came at 500...
Still cheap (if the frame is technically okay).
Even $ 1000 would be quite okay (although I wouldn't pay that). -
• #53674
Look.. my frames hold over 150 US National records some over 20 years old.. including the world 100K and the US 40K TT record. All using different genders and riders. So,
you can piss on my theory all you like. The proof is in the pudding boys. I will tell you that I did quite a lot of wind tunnel testing, and I don't need a computer model or machine to tell me a frame is stiffer.
daveMmm ? Frame n fork with holes is stiffer.
Thats it Im getting the drill out lol
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• #53675
where are all the bikes?
Drilling holes in frames like that would add so much more time to the manufacture. Time=money. Money vs. added performance? Probably not worth it for a large company.