My dumb question about geared hubs

[LargeEddie]

Originally Posted by Up Rite

Instead of a gearing up from 1:1, why not have it on a larger wheel 1:1 and 1: 0.65?

They might be hard to find if you haven't seen them already and don't know what to search for, but there have been a number of discussions about why they are as they are and what other ways they might be. Certain forum members have argued with great passion for downgearing.

E.g.:
http://www.unicyclist.com/forums/showthread.php?t=95916
http://www.unicyclist.com/forums/showthread.php?t=99913

Not an owner of one myself but my Occam's Razor answer would be that the Schlumpf hub is what it is because that's what Florian himself wanted when he designed it. It was a labor of love, not an answer to consumer demands.

[Up Rite]

The search function does not always yield what I seek.

[bouin-bouin]

Originally Posted by LargeEddie

They might be hard to find if you haven't seen them already and don't know what to search for, but there have been a number of discussions about why they are as they are and what other ways they might be. Certain forum members have argued with great passion for downgearing.

E.g.:
http://www.unicyclist.com/forums/showthread.php?t=95916
http://www.unicyclist.com/forums/showthread.php?t=99913

Not an owner of one myself but my Occam's Razor answer would be that the Schlumpf hub is what it is because that's what Florian himself wanted when he designed it. It was a labor of love, not an answer to consumer demands.

Thank you LargeEddie, my concept was detailed here : http://www.unicyclist.com/forums/sho...t=99913&page=2

[UniDreamerFR]

Originally Posted by Bouin-bouin

Still under 3D design but no recent progress
It has been presented somewhere in this forum, Greg Harper made some comments at this time. I had long discussion with Florian at Brixen Unicon and he confirmed the right concept
Hier 18h33

@Didier (Bouin-bouin) Since it's been your goal for all those years (on your signature), and since it looks like you have all the 3D work done (do you?), why don't you just make a prototype of it to see how it behaves and what must be modified and so on?

Is it because you don't have the tools to make it, or the budget to make some parts (or all parts) made by a professional, a lack of time or is the 3D work just not complete yet, and in this last case, what are the remaining issues?

[bouin-bouin]

Originally Posted by UniDreamerFR

@Didier (Bouin-bouin) Since it's been your goal for all those years (on your signature), and since it looks like you have all the 3D work done (do you?), why don't you just make a prototype of it to see how it behaves and what must be modified and so on?

Is it because you don't have the tools to make it, or the budget to make some parts (or all parts) made by a professional, a lack of time or is the 3D work just not complete yet, and in this last case, what are the remaining issues?

About 1/3 of the parts have been designed under CATIA V5 with strong support of Martin Charrier who is less available because preparing is PHD, me too; other points should be OK

[tholub]

Originally Posted by Up Rite

I see a few others here would go for a geared down hub.

So how would a 24" with current gearing up be compared to a 36" geared down in various situations?

A geared-up 24 would be better than a geared-down 36 in every conceivable scenario.

[UPD]

Originally Posted by tholub

A geared-up 24 would be better than a geared-down 36 in every conceivable scenario.

I agree. It's useless to have a ton of spinning on a 36er. There's plenty of leverage for climbing from using 165 or 150mm.