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  1. The simple answer is that it really depends on...

    The simple answer is that it really depends on what you want. Generally speaking, if climbing inclines easier is the goal, the 24s will be more efficient. But the 25s will roll easier and require...
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    I'm actually very fond of "you outta put a motor...

    I'm actually very fond of "you outta put a motor on that thing". I was pushing up a steep hill one day, fighting a huge crowd of ABs coming down (Apparently, most ABs don't drive, or are from...
  3. It can spin for a long time, but not forever. The...

    It can spin for a long time, but not forever. The idea of an object moving perpetually through space is actually a common misconception. It might take immeasurable eons, but it would eventually slow...
  4. Excellent point. It's like saying the 'cross...

    Excellent point.
    It's like saying the 'cross tubes' on their folding chairs aren't part of the frame...
  5. "IT WOBBLES THE MIND!" - kelly bundy

    "IT WOBBLES THE MIND!" - kelly bundy
  6. Ok. One more time. I’ll go through each statement...

    Ok. One more time. I’ll go through each statement one at a time.

    “I think maybe I was not clear in how I wrote my previous post and you misinterpreted my true meaning, I think we are on the same...
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    Troll ...

    Troll ...
  8. You are still trying to make fruit salad. And you...

    You are still trying to make fruit salad. And you are misinterpreting several basic concepts of Physics.

    Speed vs velocity - As explained previously, they are not the same.
    The rotation of the...
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    All of those questions should be able to be...

    All of those questions should be able to be easily answered by your engineering staff. I don't see where any "long winded" explanations would be necessary. And private messaging? What could possibly...
  10. I guess I oversimplified. Please let me clarify....

    I guess I oversimplified. Please let me clarify. The context is important. We were talking about rotational force (propelling the wheel) but are now overlapping the use of that force to create linear...
  11. I have done the same, and am in complete...

    I have done the same, and am in complete agreement. 559s are the best compromise. (Spinergy Spox (18s), MPEs, 135 psi)
  12. The drive wheel on a bicycle is hub-driven (force...

    The drive wheel on a bicycle is hub-driven (force applied to the center). Manually propelled wheelchair wheels, and casters, are rotated by applying force to the rim.
  13. It is hard to visualize on wheels so close in...

    It is hard to visualize on wheels so close in diameter. But if you were to precisely measure the footprint of the two tires (with the same air pressure, same construction, same load (weight), etc.),...
  14. Apples and oranges. The question here was...

    Apples and oranges. The question here was regarding wheel size (diameter). The bicyclist didn't vary his wheel diameter. And only the front wheel would be applicable to a wheelchair application...
  15. Oddity is correct. To move at a constant speed,...

    Oddity is correct. To move at a constant speed, an object must be constantly accelerating.

    But the friction area (footprint) of both tires would be the same, assuming the same tire, same air...
  16. Maddog’s 1:1 ratio is referring to distance, not...

    Maddog’s 1:1 ratio is referring to distance, not acceleration (force). And his comments about leverage and torque are regarding hub-driven wheels (power assisted), not rim driven (manually...
  17. It’s not theory. It’s a proven law of Physics....

    It’s not theory. It’s a proven law of Physics. Some guy named Isaac Newton…

    The moment of inertia makes the wheel harder to rotate. Rolling resistance makes the wheel harder to rotate. As they are...
  18. Absolutely. The larger wheel has more angular...

    Absolutely. The larger wheel has more angular (rotational) momentum, therefore requiring less additional acceleration (force) to maintain a constant speed. The larger diameter also gives it a lower...
  19. Assuming all other influences to be equal, the...

    Assuming all other influences to be equal, the larger wheel is harder to push. While there are some additional physical properties that contribute insignificantly to this comparison, the simplified...
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    A stop hole works in metal because it is a...

    A stop hole works in metal because it is a monolithic ductile material and the stress can be redistributed evenly. A carbon fiber plate is a built-up composite – basically an assembly. A crack always...
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    I thought maybe you preferred the laced look....

    I thought maybe you preferred the laced look. Definitely more visual geometrics. Personally, I prefer the simplicity and symmetrical elegance of radials.

    As far as being stronger, this appears to...
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    Just out of curiosity, why would you want cross...

    Just out of curiosity, why would you want cross lacing?
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    Very, very nice. I really like the look of the...

    Very, very nice. I really like the look of the linear hubs. Sort of like the early Spinergy wires, but much more streamlined.
    I'm curious... do you use spoke nipple washers? And if so, are the...
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    West has very good epoxies for doing layups or...

    West has very good epoxies for doing layups or for doing laminated repairs. But for small crack repair or edge bonding, or even filling very small holes, the best solution is an epoxy repair gel....
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    Curious as to why you would choose x-laced over...

    Curious as to why you would choose x-laced over radial. Aesthetics? Because spoking is really determined by the function of the wheel – hub-driven, rim-driven, freewheel. (There can be other factors...
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