Yes. It's normal. Use a really heavy rim, say something weighing 180 lbs or
so, to replicate the mass of the rider and bike, and the difference in how
long the two wheels spin will be reduced dramatically. The reason the wheel
stops spinning so quickly when it's in a truing stand is that the rim an
I replaced my front wheel with a dynamo hub, and the difference between the
two was about what you describe:
Phil wood hub, 36h laced to Synergy rim: spins almost forever
Shimano DH-3N80 hub, 36h laced to PL21 rim: spins maybe two or three times
around before stopping
They both feel good on the
So it is normal for this SON hubbed front wheel to spin such a short time
compared to my rear wheel, which keeps spinning for a lng time?
I can spin it up, go use the bathroom, come back and its still spinning.
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With dynamo hubs that ground to the fork via the axle, such as all Shimano
hubs, you can create a short if the headlight or the taillight grounds to
the frame and you don't have everything wired "power to power" and "ground
to ground". But that wouldn't actually increase drag. It would just cause
t
That's hilarious. Thanks for the link.
And it reminds me of my cross country drive four years ago to Arizona for
an eighteen day dory trip with lots of hiking through the Grand Canyon. By
the way, highly recommended. Run by OARS in Flagstaff.
Anyway, I'm in west Texas when the engine in my car we
It has been too long since I last installed them to recall the details, but
I know that, at least with some dyno hubs, you can hook up the wires the
wrong way and get the wrong -- far too much -- resistance; in effect, using
your hub like a magnetic resistance device. I've done it myself a few time
Peter,
Your last sentence made me think of this:
http://www.lavelocita.cc/opinion-page/data-disconnection
Keith
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Please read the section titled; *Schezbzflat! My hub feels notchy! on my
"schmidt.php" page.*
All hubs have drag. A sealed bearing hub, like White Industries has drag.
The drag is about the same as the work you do climbing about 6 inches in
elevation every mile you ride. With a SON28, lights switc
In a sense yes, but once the hub is spinning at a higher speed the drag is
hardly noticeable. Your spin test in a repair stand is far from replicating
real world use and conditions. Electricity is not free, even coming from a
dynamo hub. If you want the convenience of a self sufficient lighti
So is this drag that i feel when i spin the wheel by hand the same drag i have
to fight against while riding? I have to spin the wheel by hand pretty hard to
get it moving like in the video.
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I have 3 bikes with SON28 hubs. That vroom and vibration is caused by the
magnetic polls of the generator and is perfectly normal. Switch the light off
when while you spin the wheel and you will feel a change in the vibration.
Also, make sure your front skewer is plenty tight. If it's loose,
My schmit hub spins the same as yours. I think we're good.
Howard
Livonia Mi
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You be the judge. Is this drag or regular spin time for a Schmidt edeluxe
wide body 36 hole hub?
When I turn it by hand in my hands it feels notchy (normal).
When I spin by hand on the bike rack like in video, it makes a
"vroomm!" sound as it turns with light on and doesn't spin all that
muc
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