wow

Looks like they pulled that out of their................oh wait maybe they really did?!?!

+1

Nothing else to say...

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"100% of the people who confuse correlation and causation end up dying."

LOL. What they don't mention is they have simply shifted the dead spot 90� such that it is now at the middle of the downstroke. And, they haven't put us to shame unless they cost more than we do. :-)

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Frank,
An original Ironman and the Inventor of PowerCranks

seriously?

seems to me they're no different than regular cranks. Deadspot is a function of the design of the human body and gravity, not the design of the crank.

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Eric Reid AeroFit | Instagram Portfolio
Aerodynamic Retul Bike Fitting

“You are experiencing the criminal coverup of a foreign backed fascist hostile takeover of a mafia shakedown of an authoritarian religious slow motion coup. Persuade people to vote for Democracy.”

Was that supposed to be in pink? Or is there actually some mechanism in those monsters? [Or, did you never take a Statics course? ;) ]

EDIT: I might have to change my tag line after seeing those things....

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"100% of the people who confuse correlation and causation end up dying."

Cool photo. What's the story on them?

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Over 4.5 years bike crash free.

Dude, didn't you read this part?

Power-curved cranks use the design of golden spiral ratio

Duh! ;-)

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"100% of the people who confuse correlation and causation end up dying."

They should have mentioned the boomerang feature. When someone passes you, you can pull off a crank, throw it at them knocking them off their bike, wait for the crank to return, put it back on and crush their dreams.

Insider info say the ninja star version comes out early next year. The bike course should become fun.

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"your horse is too high" - tigerchik

I was thinking the same thing--the GOLDEN SPIRAL!!! how are you gonna argue with that one??

then there's the official Taiwan Bicycle Guide 'random prepositional phrase': "For the purpose of meeting the commercialization"....... umm....huh??

So do these accelerate at some point of the pedal stroke relative the bottom bracket compared to the chainrings that are moving at constant angular velocity and then decelerate in another phase of the stroke, or are these cranks moving at constant angular velocity too?

Put some q-rings on those bad boyz and you're all set! Who knows where the dead spot will end up. They will confuse the dead spot so much that it will run away in fear.

you're kidding, right?? these are are going on $120.00 bikes going to Walmart.

Here's some seriously funny reading: http://www.e-chien.com.tw/...ish/knowledge01.html

Cool photo. What's the story on them?

It's called the "Clone Stamp" tool in Photoshop ;-)

Probably because they'll weigh fifteen pounds.

Borked ??? How has such an awesome word escaped my vocabulary for so long?

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sometimes you just have to eat the cake

Here's a pic of legendary British Time Trialist Ian Cammish setting the British 50 mile record in 1983 on a pair of L shaped cranks. He went 1:39 with no aerobars, no aerohelmet, and wheels that were less aero than today's road racing wheels. There was quite a bit of vehicular traffic on the course to help though. I'm not sure if Ian fell for the BS about them being faster than regular cranks or if he was just taking cash from the sponsors, but he was incredibly successful on them. He's now about 51 and still winning big races, while working for Planet-X bikes, and writing a column on their website where among other things he shares details of the problems with his taint that might be better left between him and his doctor. Nice bloke.

I can assure you Ian's success had nothing to do with the crank. That crank is equivalent to one that went straight from the BB to the pedal, except that is heavier and maybe flexes more.

This is in fact, a prime example of why "if its good enough for Lance/Norman/Torbjorn" arguments should be ignored =)

Actually I might trust Torbjorn

;)

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Kat Hunter reports on the San Dimas Stage Race from inside the GC winning team
Aeroweenie.com -Compendium of Aero Data and Knowledge
Freelance sports & outdoors writer Kathryn Hunter

I actually have the "Bork bork bork" add-on to Firefox, which in addition to a few other features, allows you to right click on a highlighted passage and "Bork Copy," translating it into mock Swedish. Demonstration:

"Impuseeng 180KG pedeleeng furce-a oon 30� in 50,000 times fetigooe-a test，zee BB borked oon zee 25,000t time-a.
Bork Bork Bork!

Borked ??? Hoo hes sooch un evesume-a vurd isceped my fuceboolery fur su lung?
Bork Bork Bork!

I ectooelly hefe-a zee "Bork bork bork" edd-oon tu Fureffux, vheech in eddeeshun tu a foo oozeer feetoores, elloos yuoo tu reeght cleeck oon a heeghlighted pessege-a und "bork text," trunsleting it intu muck Svedeesh!"

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Over 4.5 years bike crash free.

Yes, I'm very well aware of that, hence I referred to it as "BS". From the pic you can see he was also promoting Brian Rourke frames, and I went out and bought one in '89, it served me very well. However I ended up having to dump it in a skip at Club La Santa rather than paying to ship a cracked frame home. Sad day!

on the bright side those old steel frames

had tiny tubes

good for aerodynamics =)

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Kat Hunter reports on the San Dimas Stage Race from inside the GC winning team
Aeroweenie.com -Compendium of Aero Data and Knowledge
Freelance sports & outdoors writer Kathryn Hunter

Those.

Are.

Awesome.

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Ignorance is bliss until they take your bliss away.

Hot damn! No longer depend on them freaking pesky cogs to decide your gear ratios! I prefer my crank arm to set that for me, thanks.

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What if the Hokey Pokey is what it is all about?

Charge $1K, make them out of carbon fiber, and make up a press release saying they will increase your power output by, I don't know, pick a number, say 60% and that they will double your run speed, and you will sell a truckload of those things. I will even conduct the study which will demonstrate that if you take 100 untrained cyclists and have them train on them exclusively for 15 hrs/week for 6 months, remarkable improvements in cycling ability are possible.

If anyone starts asking technical questions, just say they were designed using the polar coordinate system to take advantage of the coriolis effect on rotating objects.

I think they're awesome apart from the name. No upper dead point power curved crank doesn't quite cut it, they need something catchy and short.

I propose "clinton cranks"...

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Forget speedwork. Speedwork is the icing on the cake and you don't have a cake yet. - MattinSF

Basically they have 9 tenants, live life to the fullest, do not turn the cheak, and embrace the 7 deadly since. - TheForge (on satanists)

hey if Look can put a kink in their top tube for no reason

why can asia make cool looking cranks?

=)

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Kat Hunter reports on the San Dimas Stage Race from inside the GC winning team
Aeroweenie.com -Compendium of Aero Data and Knowledge
Freelance sports & outdoors writer Kathryn Hunter

I dont see a BB30 version :-(

Kevin

This is the funniest thread in a long time. Thanks guys for making my day. Might as well go home. Nothing is going to top that today !

Francois in Montreal

If there was no financial crisis I would buy them, but hey, I might lose my job tomorrow. How can I afford to spend my last money on cranks instead of beer...

wrong timing to put such a crank on the market.

This is awesome. I am preserving this for all time. The fact you that you believe that these cranks have shifted the deadspot 90deg is baffling to me. Well, not really. But it ought to be. The cranks are no different than if they went in a perfectly straight line. How you've managed to get away with writing that and not getting drilled is beyond me. If this statement is representative of your understanding of either mechanics or biomechanics or both, you're in trouble...

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"Non est ad astra mollis e terris via." - Seneca | rappstar.com | FB - Rappstar Racing | IG - @jordanrapp

I'm guessing all that means is that they were built with a 110BCD spider. But hey, it could also be a function of the Golden Spiral Ratio...

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"Non est ad astra mollis e terris via." - Seneca | rappstar.com | FB - Rappstar Racing | IG - @jordanrapp

My comment should have been in pink, but I avoid doing such stuff as I have trouble reading the pink type (not enough contrast) and I would hope that most of the readers here can tell the difference between serious and not so serious posts. The only way these cranks would be different from cranks that went straight might be if they were made of spring steel, such that there might be some storing/release of energy during the stroke. I doubt that is the case.

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Frank,
An original Ironman and the Inventor of PowerCranks

Chuck Norris could ride these cranks. He's about the only person on earth who could

Wait, I have an idea....who wants to put in some cash for developement and patent attys?

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What if the Hokey Pokey is what it is all about?

Finally some "proof" that "just pushing harder" is more powerful than pedaling in circles. :-)

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Frank,
An original Ironman and the Inventor of PowerCranks

They are more awsome than you can imagine, they help acceleration because of the shaped momentum, they littterally pull the crank out of the upper dead curve and the crank arms are bent out from the frame with slightly inverted pedals which allows for more aplied power because you arent pushing straight down and wearing your knees, I read the forums on different sights by so called EXPERTS and couldnt beleive they couldnt see the common sense in this design. I was building a Custom dual shaock MTB and bought 2 sets of these cranks, I combined the MTB version with the Road version and that just created a weapon, I am running 11-28t rear and 42 bio-pace and 56t front on my 18kg MTB, I didnt see the need to add the 3rd chainring as it flies up hill and cruises 55-60kph on flat, I am about to upgrade again to 48t/60t very soon. I will be happy to tell you more.

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ITS GO TIME !

The concept of pointlessly making straight things curved worked for Pinarello:

I think what everyone is overlooking is that, unlike Powercranks, these cranks increase the outstanding of your bike. A; Powercranks do is increase the outstanding of your legs. :)

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The best pace is a suicide pace, and today looks like a good day to die.-Pre

I know you are new to the forum but it's accepted practice to use a pink font when being sarcastic.

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"When the going gets weird, the weird turn pro."

Hunter S. Thompson (1937-2005)

I know you are new to the forum but it's accepted practice to use a pink font when being sarcastic.

Two things are weird about Sgt. Marshall's post. His FIRST post is in response to a Mar 09 humor post and he has photos of those cranks on his profile page suggesting he believes they work (or that he is being very sarcastic).

hahaha

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http://www.y-rocket.blogspot.com/

Yeah, that's weird. He's either very sarcastic or very fast. Maybe I'll be getting passed by a mountain bike doing 60kph running curved cranks this summer...

I'm very scared.

Brad

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3SIXTY5cycling.com

Duh! Rapp!
Can't you see that they make a 170mm crank into a 200mm. And, the spiral adds a spring effect returning the energy imparted during the downstroke to the horizontal part of the stroke. And, lastly the extra weight keeps the crank turning faster during any dead spots. Hell, you're an engineer aren't you????

X^D

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_________________
Dick

Take everything I say with a grain of salt. I know nothing.

Snake oil, pure and simple!

But as they say, there is a sucker born every minute.

Rest assured, I'm not a sucker.

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TriDork

"Happiness is a myth. All you can hope for is to get laid once in a while, drunk once in a while and to eat chocolate every day"

I think you put your finger on the essence of the problem -- complete lack of understanding of simple physics. :-)

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AndyF
bike geek

I think their theory is that all that metal (read weight) on the right side of the BB will pull the crankarm CW when it's at 12:00, reducing the deadspot there (same effect as if you glued a big weight 90 deg. CW from a normal crankarm). However if the non-driveside arm has a similar curve they just cancel each other out.

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ECMGN Therapy Silicon Valley:
Depression, Neurocognitive problems, Dementias (Testing and Evaluation), Trauma and PTSD, Traumatic Brain Injury (TBI)

It seems like the intended competitor of the product in question was Rotor rather than Powercranks.

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Proud Representative of Slowtwitch Anti-Atheists Society.