Has any one come across this design before?

bedovelo twin fixed schlumpf beltdrive system - YouTube

Fucken gingers and their threads...

If by design you meant belt-drive, yes. There's a thread for that.

I have not seen that, looks very interesting except I would be scared of accidentally changing the gears while pedaling.
Sturmey had a 3 speed fixed hub back in the day http://www.classiclightweights.co.uk/designs/hsasc.html

I arse hume it was the gears yu were talking about? belt drive is as above. pre-threaded.

The 3 speed fixed Sturmey hub is being made again. I'm sure there are riders on here using it.

It's not very good.

http://www.schlumpf.ch/hp/schlumpf/antriebe_engl.htm

^ Schlumpf produce the cranks.

1 peddle
2 peddle harder
3 peddle even harder

so the guy just brought some stuff and put it together like the rest of us, cept he made a video of himself?

@ miro have you tried the
three speed fixed?

I arse hume it was the gears yu were talking about? belt drive is as above. pre-threaded.

Gears are not part of the design.
AFAIK, design means that it's a belt-drive frame, that's how it was designed.
Once built and finished it has a 3 speed hub (BD), that's how it is equipped.
Assuming that this hub would work on another belt-drive frame.

pedantry aside

@ miro have you tried the
three speed fixed?

On a Pashley. I think it was called the Clubman?

Ah Ha! so putting the joint in the stay is the cunning design! gears and belts off the shelf, well yes then, I saw that design in the belt drive thread.

Was the pashley fixed, just curious as SA seemed to be quite proud of it.

1 peddle
2 peddle harder
3 peddle even harder

Then get busted for peddling.

Yes. 3 speed fixed. It has a sloppiness, similar in feeling to a slack chain. It's inevitably quite weighty too.

Sturmey Archer are also making their 2 speed kickback coaster hub again. I've not tried it but the people at Pashley loved it, as does everyone you remembers them 1st time round. They (probably correctly) think the 3 speed fixed will sell better because of the resurgence in riding fixed.

Try the 2 speed kickback and report back!

I remember SA hubs but not with any affection, just curious if they were held in any genuine esteem. I will not be trying one anytime soon.

Did you ever ride the 2 speed kickback coaster?

Just went on their website and google magically auto-translated this for me:

bedovelo twin fixed
the fixie with a smurf speed drive gear equipped and can be thus connected.

I want smurf speed!! (but not for 2700CHF)

I'm in lausanne for the year though, so may pop to bern and see if i can test it. I imagine it'd be fairly hard to change gear when spinning fast and keep control... Especially if for some reason, you decided to go to the higher gear, it could really screw your knees up...

They developed the fixed version of the schlumpf drive.
I saw it, the q factor is so huge I didn't feel like riding it.

Its a nice frame, but the bb has to be really expensive as the parts on it are way to bad for the price.

I thought the Schlumps weren't meant to be suitable for brakeless fixies because they couldn't take the forces from braking and gears. Or was that the SA 3 speed fixed hubs?

I would have problems shifting the schlumpfs while riding fixed, co-ordination would be tricksy.
There's lots of discussion about the sturmey 2 speed in here, I would not recommend it.
UTS

UTFS

fixed

fixed

UTS - i no wut i sed

Not confrontational for this forum.