THE WORLD'S SIMPLEST TRANSMISSION for BICYCLE

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Uploaded by on Jul 23, 2010

Please watch also, THE SUPER-EFFICIENT ENGINE ( Part 3).

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  • TABAG. ROFL.

  • @ the un-experienced, self-proclaimed experts - Forget about your precious cadence, linear travel of your feet is the real issue. You might pedal your roadie at 70 strokes/minute but try pedaling longer cranks at that cadence and see how long you last. If the pedals shown were moved from a radius of 180mm to 165mm your feet would have to travel a 9% less distance. That's the same effect as shifting from a 46 tooth chainring to a 50 tooth chainring. My 2 cents worth.

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  • Absolutely useless and it defeats the purpose.

  • this is incredibly useful. Now we can teach students in physics, engineering, math and design what not to do in one simple video.

  • I like that

  • go faster change down a gear lol

  • @heli400 Its the classic speed vs distance trade-off that levers allow you to achieve. Using your teeter totter example, by sitting closer to the fulcrum you can apply about the same amount of force to lift the other person the same distance as before but you move a shorter distance at lower speed or you can try to keep your speed the same which costs more force but you've sped up the person on the other end. Gears are just funny shaped levers that allow you to trade distance for speed.

  • hi, in your video you are using the resistance of the chain to make the ratio change possible, so, whilst riding, do you have to change the pedals at different times?

    or do have you set up the hub gears to not free wheel?

  • @dchaffee02 (You posted a year ago).... You claim reducing the size of the crank from 180mm to 165mm resulting in a 9% less distance traveled.... what does linear distance traveled have to do with applying force? The force produced on a bike crank is perpendicular to the radius from the center of the circle. (think - teetter totter.) Which requires more force? a force applied at 165mm or 180mm from the fulcrum? Yes more linear distance is traveled at 180mm but less force required to do so.

  • @JungalistJoe lol i know what it really means, the real meaning i assumed was implied, and no, i knew the word before it became video game lingo, but unfortunately alot of youtubers are gamers and is why they are getting a kick out of your name. I am not part of that crowd, and was informing you so you would not be offended.

  • @rich1051414 It's when you dunk your balls in someones mouth repeatedly, using the same motion you would dunk a teabag in a cup of tea.

    Stop playing video games and experience life, your missing out on the good stuff.

  • @TABAGfrancis please ignore the 12 year old kids laughing at tabag, since in english, its similar to teabag. Teabagging is slang for crouching and standing over and over above the head of a person they just killed in a shooting game to get a laugh. This is done to someone no one likes for whatever reasons, or randomly by very immature players.

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