Advertise on Bikeforums.net



Search:

Type: Posts; User: achoo; Keyword(s):

Page 1 of 20 1 2 3 4

Search: Search took 0.92 seconds.

  1. Replies
    23
    Views
    394

    Why would you put stickers on a magnet?

    Why would you put stickers on a magnet?
  2. Replies
    17
    Views
    469

    OK, here's an extreme example: Get an empty...

    OK, here's an extreme example:

    Get an empty aluminum soda can. Put it upright on the floor and put one foot on it. Put a good amount of weight on the can - but don't crush it. Now, bend over...
  3. Replies
    34
    Views
    838

    And your qualifications to rebut that published...

    And your qualifications to rebut that published and peer-reviewed paper are what exactly?



    You can do a good squat workout in five minutes. That's a huge advantage. And there are different...
  4. Replies
    34
    Views
    838

    Rest intervals under 30 seconds build muscular...

    Rest intervals under 30 seconds build muscular endurance - which is directly applicable to cycling. Third paragraph of the introduction of the paper I posted. And high reps with short rest...
  5. Replies
    34
    Views
    838

    Climbing performance is based on aerobic W/kg. ...

    Climbing performance is based on aerobic W/kg. Squats aren't going to help the aerobic W much if at all, and will drive up the kg. You say you're cutting fat to account for the added mass, but you...
  6. Replies
    25
    Views
    560

    If you can up your power that much the last 5-7...

    If you can up your power that much the last 5-7 minutes, your FTP is higher.

    Do it right, and you'll be holding on by your fingernails, screaming for the hour to end over that last 5-7 minutes.
    ...
  7. Except that the difference between "rotational"...

    Except that the difference between "rotational" and "non-rotational" mass isn't that big of a deal when you look at it from energy/power costs. Mainly because the weight in question is well under a...
  8. Brake heat dissipation is still a problem for CF...

    Brake heat dissipation is still a problem for CF rims - and probably always will be as long as rim brakes are used.

    While things are getting better, it's just a matter of degree - the resin will...
  9. I'll go back to this, because that's useless for...

    I'll go back to this, because that's useless for showing the effects of spoke shape. It uses wheels with significant differences in rim design between ALL the wheels. No two wheels in that paper...
  10. Replies
    22
    Views
    619

    In my experience, there are a few problems with...

    In my experience, there are a few problems with Friel's zones:

    1. They're too high. OK, there is definitely HR zone variation from person to person, but it seems to me that Friel's zones are at...
  11. Yeah, I was ignoring friction and rolling...

    Yeah, I was ignoring friction and rolling resistance, too. I think it's safe to assume spoke shape has little to no impact on rolling resistance and friction losses on a bike.

    You're assuming the...
  12. Replies
    20
    Views
    509

    Yep. Nothing is going to be "breathable" enough...

    Yep. Nothing is going to be "breathable" enough to allow you to dump the heat you generate if you're riding hard.



    I've just plain given up trying to keep dry and just dressed for getting wet...
  13. Yes, there has to be power to overcome the drag...

    Yes, there has to be power to overcome the drag of spinning.

    But where does it come from?

    The force applied backwards to the contact patch, which spins the wheel.

    Right?

    OK, but the wheel...
  14. Or your cleats worked a bit loose.

    Or your cleats worked a bit loose.
  15. Nope. The power to overcome what you're calling...

    Nope. The power to overcome what you're calling "circumferential drag" has to be applied somewhere by a force. That force WILL show up in the force used to hold the wheel steady in the wind tunnel ...
  16. Nope, doesn't matter. Because the force used...

    Nope, doesn't matter.

    Because the force used to spin the wheel has to be counterbalanced by the force against the support, which is measured.

    While it takes no power to hold the stationary bike...
  17. Umm, sure. How many people would feel safe...

    Umm, sure. How many people would feel safe loading up a bike with Zipps to 250 lbs and riding their brakes continuously all the way down a 5-mile 11% descent?
  18. Testing done at A2 wind tunnel. Like this: ...

    Testing done at A2 wind tunnel. Like this:


    https://www.youtube.com/watch?v=JJP9A6VAWpY

    Sorry, wheels were spinning.

    One watt.
  19. And again....

    And again.

    One whole watt.
  20. Again - define "upgrade". For lighter weight...

    Again - define "upgrade".

    For lighter weight or better aerodynamics, you will need to spend that much.

    For more durable wheels? Nope. I've already posted a link to 10-speed wheels for $250...
  21. Yes, it shows up All one watt of it......

    Yes, it shows up

    All one watt of it...

    But it does show up...
  22. Replies
    12
    Views
    391

    I doubt it - the average recreational cyclist is...

    I doubt it - the average recreational cyclist is not your average A&S poster...
  23. Replies
    12
    Views
    357

    And max HR really isn't the number you want to...

    And max HR really isn't the number you want to base your training zones on anyway. LTHR is much better.
  24. Not with a $500 budget. If the OP rides hills...

    Not with a $500 budget. If the OP rides hills with long descents, he'd better be really good at descending if he wants to do that on any carbon wheels at his 265 lbs unless he wants to melt his...
  25. Replies
    12
    Views
    357

    Ride more. You hadn't ridden hard in a while,...

    Ride more. You hadn't ridden hard in a while, and IME that means your HR will be higher than it would had you been riding regularly.

    Because 3/4 of your time in HR z4/5 is a LOT for a 2-hour...
Results 1 to 25 of 500
Page 1 of 20 1 2 3 4