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Do you really use your 11 cog to go faster?

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Do you really use your 11 cog to go faster?

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Old 12-04-15, 07:39 PM
  #226  
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Originally Posted by PepeM
Also the front of the bike crosses the finish line first so of course it is going faster.
That's why I run my computer magnets on the front wheel only.
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Old 12-04-15, 07:43 PM
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Originally Posted by CliffordK
Whew, what a mess... is this serious?

The rotational speed (tangent vector) does vary with crank arm length, so if you have different crank lengths, then the cadence is still the same, but the rotational speed is different. The pedal on the longer arm travels through a greater distance, and thus a higher rotational speed.
You're trying to overcomplicate this.

Rotational speed = RPM.

Look, Wikipedia agrees-

Rotational speed (or speed of revolution) of an object rotating around an axis is the number of turns of the object divided by time, specified as revolutions per minute (rpm)
So you stated that "the longer arm travels through a greater distance, and thus a higher rotational speed". We see that rotational speed = RPM, so therefore longer arm = higher RPM.

Just sayin'.
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Old 12-04-15, 07:59 PM
  #228  
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Originally Posted by Dan333SP
You're trying to overcomplicate this.

Rotational speed = RPM.

Look, Wikipedia agrees-



So you stated that "the longer arm travels through a greater distance, and thus a higher rotational speed". We see that rotational speed = RPM, so therefore longer arm = higher RPM.

Just sayin'.
The distance moved by a point at the end of a radius is proportional to the radius and the angular velocity or rotational speed. A longer arm does not = higher RPM. It results in more distance travelled at the radial distance from the center of rotation PER revolution.

EDIT: I just realized this is all a joke. Carry on.
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Old 12-04-15, 08:06 PM
  #229  
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There is nothing funny about you guys disagreeing with Wikipedia and the facts I presented.
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Old 12-04-15, 08:14 PM
  #230  
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****
Does the sprocket (drive) side (larger turning radius) of a wheel hub turn at a slower RPM than the none drive side (smaller turning radius)? If so, why don't the spokes break?
Just sayin'
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Old 12-04-15, 09:55 PM
  #231  
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Originally Posted by rpenmanparker
EDIT: I just realized this is all a joke. Carry on.
I can tell that you're a hoot at parties!
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Old 12-04-15, 10:26 PM
  #232  
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Originally Posted by GuitarBob
I can tell that you're a hoot at parties!
What's a party?
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Last edited by rpenmanparker; 12-05-15 at 07:23 AM.
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Old 12-04-15, 10:37 PM
  #233  
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Originally Posted by goenrdoug
This.

Dan3333333, try a little experiment:
...
Now.. Think about THIS: Can you think of any way to get the right crank and left crank turning a different number of times in a minute? No?

...
Sure all you need is chainrings on each side. And two different axles, Two chains, cogsets. Dan3333, as we know, is a powerful bicycler. He could probably handle two chainrings easily.
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Old 12-05-15, 04:34 AM
  #234  
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OK, we're at ten pages now. People who don't know any better are going to google "11t cog" and wind up here. They'll try to follow all this, and somebody's going to get hurt.
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Old 12-05-15, 07:23 AM
  #235  
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Some threads need to be locked. Some need to be erased.
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Old 12-05-15, 03:41 PM
  #236  
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This should be preserved for all future members.
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Old 12-05-15, 05:16 PM
  #237  
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If using an 11t cog, make sure you use a Z torque crank for max power.


(Apparently somebody with a milling machine, but lacking the most basic understanding of mechanics, thought this was a good idea)
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Last edited by Homebrew01; 12-05-15 at 05:22 PM.
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Old 12-05-15, 08:17 PM
  #238  
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Originally Posted by kbarch
OK, we're at ten pages now. People who don't know any better are going to google "11t cog" and wind up here. They'll try to follow all this, and somebody's going to get hurt.
Anybody goes to the Internet for accurate information deserves what they get.
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Old 12-06-15, 07:29 AM
  #239  
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Originally Posted by BoSoxYacht
It's a nice ride, but 8200ft in December can be less than ideal for cycling.
It's for my observation of Festivus Feats of Strength. I already called ahead to the local bike shop that puts on the group rides and asked about riding it that time of year. I have lots of layers of cycling apparel I intend to pack along with me. I can always turn around and ride back down if it gets too nasty. I've been slacking since the time change and I don't know if I'm up for the ride up anyway, but I'm still planning to give it a go. Not counting on setting any Strava segment records.
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Old 12-06-15, 01:54 PM
  #240  
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Originally Posted by Homebrew01
If using an 11t cog, make sure you use a Z torque crank for max power.


(Apparently somebody with a milling machine, but lacking the most basic understanding of mechanics, thought this was a good idea)
That would look so cool on a Stingray!
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Old 12-07-15, 10:56 AM
  #241  
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Originally Posted by D1andonlyDman
I'll assume at this point that you're just trolling, and are not actually foolish enough to believe what you're claiming. I'm outta here.
Ditto...
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Old 12-07-15, 11:16 AM
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Originally Posted by Homebrew01
If using an 11t cog, make sure you use a Z torque crank for max power.


(Apparently somebody with a milling machine, but lacking the most basic understanding of mechanics, thought this was a good idea)
Add Biopace chainrings = mind blown
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Old 12-07-15, 11:18 AM
  #243  
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Word to the wise: If someone seems so stupid that it almost defies belief, especially on BF, they're probably trolling.
@D1andonlyDman @rmfnla thanks for taking the bait, though! Fun times were had by all.
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Old 12-07-15, 11:22 AM
  #244  
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Originally Posted by Dan333SP
Word to the wise: If someone seems so stupid that it almost defies belief, especially on BF, they're probably trolling.
@D1andonlyDman @rmfnla thanks for taking the bait, though! Fun times were had by all.
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Old 12-07-15, 11:35 AM
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Originally Posted by Dan333SP
Word to the wise: If someone seems so stupid that it almost defies belief, especially on BF, they're probably trolling.
Or, as in Dan333SP's case, both can simultaneously be true, as the latter certainly does not preclude the former.
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Old 12-07-15, 11:56 AM
  #246  
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Originally Posted by D1andonlyDman
Or, as in Dan333SP's case, both can simultaneously be true, as the latter certainly does not preclude the former.
I took the liberty of plotting my stupidity and its relationship to my trolling for you. Let me know if you need any clarification.

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Old 12-07-15, 12:47 PM
  #247  
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I used to have an 11-23t cassette with a 53/39 crankset. Now I'm 53 and that combination is pretty much pointless. I switched to a 13-26 (Campy 8 speed) cassette and still don't even use the 13t cog very much. FWIW you can still go plenty fast with that combination. I have hit 35mph on flat ground (with a tailwind) and 44mph downhill.
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Old 12-07-15, 12:51 PM
  #248  
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Originally Posted by Homebrew01
If using an 11t cog, make sure you use a Z torque crank for max power.


(Apparently somebody with a milling machine, but lacking the most basic understanding of mechanics, thought this was a good idea)
You are kidding me right? UNBELIEVABLE.
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Old 12-07-15, 12:55 PM
  #249  
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Originally Posted by Erzulis Boat
You are kidding me right? UNBELIEVABLE.
The guy actually had the nerve to try Kickstarter to fund it. Supposed to deliver more power. I think he raised about $20, and got laughed off the internet.

I have seen pictures of a few others from the past century.

If someone wants a heavier, more flexible crankset, then it's perfect.
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Old 12-07-15, 01:22 PM
  #250  
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I want to show up for a crit and spend the entire race running power cranks in this configuration-



I'm pretty sure pushing with both legs at once is a more effective use of power, right?
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