How long does your wheel/hub spin for?

My Zipp 440 wouldn't even slow down.

great fun, but bears no relation to how hubs and bearings will behave under load, e.g. riding your bike.

dat's the truth......

and bearing drag (mostly seal drag really) on a bike is around a watt IRRC, so improving it a million percent is not something you should waste much time and money on. The seals are there for a reason.....

My Zipp 440 wouldn't even slow down.

Yeah? Well mine speed up.

great fun, but bears no relation to how hubs and bearings will behave under load, e.g. riding your bike.

Bingo, we have a winner.

dat's the truth......

and bearing drag (mostly seal drag really) on a bike is around a watt IRRC, so improving it a million percent is not something you should waste much time and money on. The seals are there for a reason.....

yeah there is seal drag, but combine everything, even the work required to flex the chain. And on a geared bike, even more so.
Also under load they'll behave differently, and then there is temperature!

I was at a workshop recently where they are working on a device to store energy in a certain application. It involves a spinning mass in a vacuum. Apparently they can get it up to speed and it will still be spinning 24 HOURS later. Insane.

when I am riding my bike the wheels keep spinning untill I stop ;)

My rear one doesn't always.

My New Phil wood rear hub on it's own spins for approx 0.01s, the hub is new as in never used but it's around a year and a half old, can someone help ?!?
the bearings should be fine if they haven't been used, right? so what do I need to replace?
Any ideas will be much appreciated.
Thanks

Mine were a bit like that - I assume you're exaggerating a little? I don't think they're renowned for their low friction, but they will free up a little with use.

Thanks for the reply sparky, unfortunately I'm not exaggerating :( spinning the lcokring is about the same as spinning the body :S it does feel smooth but it just doesn't spin.
i was hoping they would free up, usually with the NOSish hubs you can feel them loosen up after playing with them for a few mins, This one hasn't yet.

In that case....

:(

a hub on its own won't spin as what keeps a wheel spinning is the weight

I started all my wheels spinning at the beginning of this thread and they are all still going.

My Dura ace hub on it's own spins for about 10 secs (and that's with a buggered axle!) and my suntour superbe spins for longer.
As i said my Phil doesn't spin at all.
someone please help :(

Right now mine don't go above 2 spins ... lol

Have to replace it...

*adding fuel to the fire

Don't forget about the weight of the valve.

kthxbye.

YouTube - Dead or Alive - You Spin Me Round

turning the bike upside down and one hard spin of the front wheel 6 mins 30 seconds thou my wheels are heavy and dont climb that well.

my wheels are heavy and dont climb that well.

As long as they can climb into bed, that's good enough.