3 speed fixed

[Fixed]

http://allcitycycles.com/blog/view_entry/3_speed_fixed_big_block/#When:22:13:47Z
i don't get it ?
cheers

[rice rocket]

Internally geared hub. Sheldon Brown had a writeup on these hubs, they're heavy, but they work.

[bart998]

previous internal 3-speeds shifted while coasting, so they couldn't be fixed gears. I love to take one apart and see how it works, I used to rebuild the old ones.

[jroden]

i'd like one for winter training, it would be quite perfect in fact. They are kind of expensive and weigh a ton.

[palincss]

previous internal 3-speeds shifted while coasting, so they couldn't be fixed gears. I love to take one apart and see how it works, I used to rebuild the old ones.

Sturmey Archer had the ASC fixed 3 speed in the early 1950s.
http://www.sheldonbrown.com/asc.html Technical details here http://www.sheldonbrown.com/asc-tech.html

[palincss]

i'd like one for winter training, it would be quite perfect in fact. They are kind of expensive and weigh a ton.

980 - 990 grams, $240. You have to compare this hub to the ASC, which Sheldon said was "the rarest and most sought-after Sturmey-Archer hub," and the last one he knew of changing hands sold for $300 in May 1999.

[maximus]

I've been wanting to build up a commuter with one of these for a while.

3s fixed on the rear w/ a dynamo up front with some nice stainless fenders to sweeten the deal. Sounds ideal to me...

[Peter B]

I have this one I'll sell for much less than $300. Less even than the linked price. Laced but never ridden. Maximus? jroden?

http://forums.thepaceline.net/showthread.php?t=80635

[maximus]

wish i could!

[RPS]

3 speed fixed
Someone needs to define what a "fixed" bike is, and isn't. :)

[Dekonick]

I have this one I'll sell for much less than $300. Less even than the linked price. Laced but never ridden. Maximus? jroden?

http://forums.thepaceline.net/showthread.php?t=80635

I would too if it were 130 spacing...

[Peter B]

wish i could!


I've got your dynohub wheel too.

Payment plan??

[Peter B]

I would too if it were 130 spacing...

And if I can correctly re-space it for you??

[maximus]

I've got your dynohub wheel too.

Payment plan??

you got all the toys! lugged frame with fender mounts in size 56ish as well? :beer:

[Peter B]

you got all the toys! lugged frame with fender mounts in size 56ish as well? :beer:

More like custom 54 (Llewellyn) and not for sale!

[sg8357]

Why 3 Speed Fixed.

According F.T. Bidlake, the Sheldon Brown of the 1910s-30s.

The following are true.
Having the chain in a less than perfect straight line robs power.
Coasting intervals when riding allow the legs to stiffen and lose
suppleness.
Derailleurs are a power wasting monstrosity with their pulleys
and awful chain lines.

Sturmey introduced the the two speed fixed TF hub in 1933.
A marvelous device, direct drive with a -25% gear, very little
lash. The later TC (direct & -13%) and ASC have more lash.

[that guy]

This hub has three times the zen!!

But really, a friend has one, and it has some play in it while riding, and I don't recommend it for throwing down mad skidz and certainly not riding brakeless. :cool:

[avalonracing]

One day man will advance to the point where we will have bikes with hubs that can freewheel and 20 or more gears! I can't wait!

[RPS]

Why 3 Speed Fixed.

According F.T. Bidlake, the Sheldon Brown of the 1910s-30s.

The following are true.
Having the chain in a less than perfect straight line robs power.
Coasting intervals when riding allow the legs to stiffen and lose
suppleness.
Derailleurs are a power wasting monstrosity with their pulleys
and awful chain lines.

Sturmey introduced the the two speed fixed TF hub in 1933.
A marvelous device, direct drive with a -25% gear, very little
lash. The later TC (direct & -13%) and ASC have more lash.
And that internal hub gears waste even more power means nothing to them? :rolleyes:

[sg8357]

And that internal hub gears waste even more power means nothing to them? :rolleyes:

I doubt they had powermeters in the 1930s.

We are talking about 2 & 3 speed, oil bath hubs.
Soon as your chain gets dirty, the derailer bike and the hub
gear are within a point or two in efficiency.

[RPS]

I doubt they had powermeters in the 1930s.

We are talking about 2 & 3 speed, oil bath hubs.
Soon as your chain gets dirty, the derailer bike and the hub
gear are within a point or two in efficiency.
Seriously, I doubt very many are riding fixed bikes for the greater efficiency the drivetrain offers – so that’s probably not much of an issue anyway.

Having said that, I’m a big fan of what geared bikes could offer in the future, but I’m not sure I agree with the difference being in the 1 to 2 percent range when the hub is not in direct drive. The bikes have chains anyway (unless using newer belts) so the difference is in chain alignment and rear derailleur loses. And unless someone lets their chain get really filthy, I can’t imagine it waste much power when going through the jockey wheels without load. Gears on the other hand handle 100 percent of the load.

And even if it were only 1 percent in difference it would be like adding a couple of pounds to a bike during a slow speed climb. And we all know how much resistance there is to adding weight that will slow us down. And on the flats the added 1 percent power loss would be equivalent to adding a lot more weight than that.

As I said, I like the concept of a geared bike with belt drive, but for some reason I have a hard time grasping the marriage of fixed and geared. Seems you’d want to do one or the other. Seems like a strange mix to me.

[Grumbs]

Personally, I like fixed for the lack of coasting/ability to modulate speed with legs, and not as much for the lack of gears. If I could have the same fun, riding fixed, with gears to make life a little easier that would be sweet. However, the reported lash of the S3X makes me less anxious to buy one, especially at such a steep price.

[Fixed]

http://www.traitorcycles.com/Bikes_Luggernaut3spd.cfm
nice looking bike
cheers