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New hub concept

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01 / Original postNew hub conceptDocvelo · 25 Feb 2003 02 / This pagePosts 1–12Page 1 of 1 · chronological order 03 / Latest replyPost #12Jay Beattie · 28 Feb 2003

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Original section
Cycling Equipment
Published
25 February 2003
Last activity
28 February 2003
Original author
Docvelo
Posts
12
Discussion status
Public discussion
Total views
1,055
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0
Topics
Internal gear hubsCassettes and freewheelsSingle-speed and fixed-gear

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  1. Original post
    Docvelo
    Archived post
    #1

    I just received pictures, from an european engineer, about a new rear hub concept.

    With this hub, it's possible to remove and/or replace the rear wheel , without touching gear
    shifters, because the freewheel body remains at it's place on the bike frame, while removing
    the wheel...

    I'd like to know your opinion about this new hub.

    I put pictures on this page : docvelo.membres.jexiste.orgnv moyeu.htm

    Does the thing deserve some interest ? Any potential ? Thanx for your comments, that will be sent to
    the designer.

    J. Ouellet

    Report
  2. lisated
    Archived post
    #2
    DocVelo said:

    I just received pictures, from an european engineer, about a new rear hub concept.

    With this hub, it's possible to remove and/or replace the rear wheel , without touching gear
    shifters, because the freewheel body remains at it's place on the bike frame, while removing the
    wheel...

    I'd like to know your opinion about this new hub.

    I put pictures on this page : docvelo.membres.jexiste.orgnv moyeu.htm

    Does the thing deserve some interest ? Any potential ? Thanx for your comments, that will be sent
    to the designer.

    J. Ouellet

    Can't see much advantage to it.

    With the conventional design, you have to release the brake, release the skewer and pull the
    derailleur back, and the wheel falls out.

    With your design, you have to release the brake, release the skewer, unscrew and remove the skewer,
    and then the wheel comes out. That probably takes longer because of having to unscrew the skewer nut
    all the way. Definitely slower when replacing the wheel.

    --
    Ted Bennett Portland OR

    Report
  3. Jon Isaacs
    Archived post
    #3
    Quoted message said:

    Can't see much advantage to it.

    With the conventional design, you have to release the brake, release the skewer and pull the
    derailleur back, and the wheel falls out.

    With your design, you have to release the brake, release the skewer, unscrew and remove the skewer,
    and then the wheel comes out. That probably takes longer because of having to unscrew the skewer
    nut all the way. Definitely slower when replacing the wheel.

    --
    Ted Bennett Portland OR

    I agree and wonder as well about how the bending loads in the axle are handled. From what I can see,
    it seems like the axle is actually two pieces so it must depend on the clamping of the QR keep
    things together, not a good idea in my mind.

    Seems like this design makes things more complicated with no real advantage.

    Motor cycles sometimes use a step similar to this and it avoids having to deal with the chain and
    the chain case. For a single speed bike or a hub gear bike, this might be nice but in the case of
    the hub gear it would make things even more complex.

    jon isaacs

    Report
  4. David L. Johnso
    Archived post
    #4
    DocVelo said:

    I just received pictures, from an european engineer, about a new rear hub concept.

    With this hub, it's possible to remove and/or replace the rear wheel , without touching gear
    shifters, because the freewheel body remains at it's place on the bike frame, while removing the
    wheel...

    I'd like to know your opinion about this new hub.

    I put pictures on this page : docvelo.membres.jexiste.orgnv moyeu.htm


    I don't see the problem that it addresses. A wheel can be removed ane replaced fairly quickly, if
    you know what you are doing. Heck, Rae Dawn Chong managed to make a quick wheel change in American
    Flyers with only a little training.

    I would think that either the integrity of the axle would be suspect (how does it connect together,
    anyway?) or the connection would be as time-consuming to deal with as a standard wheel.

    Nothing wrong with touching the gear shifters. On the other hand, here you would have to remove the
    QR completely. And manage to get the thing uncoupled, and then back again.

    --

    David L. Johnson

    __o | Some people used to claim that, if enough monkeys sat in front _`\(,_ | of enough
    typewriters and typed long enough, eventually one of (_)/ (_) | them would reproduce the
    collected works of Shakespeare. The internet has proven this not to be the case.

    Report
  5. Marten Gerritse
    Archived post
    #5
    Quoted message said:
    DocVelo said:

    I just received pictures, from an european engineer, about a new rear hub concept.

    With this hub, it's possible to remove and/or replace the rear wheel , without touching gear
    shifters, because the freewheel body remains at it's place on the bike frame, while removing the
    wheel...

    I'd like to know your opinion about this new hub.

    I put pictures on this page : docvelo.membres.jexiste.orgnv moyeu.htm


    These things have been around for ages. Can't remember if I've seen them with cassettes, but I have
    a freewheelversion at the office. Only practical use I see is with a travel bike: A flat wheel
    without cogs packs a lot easier in a suitcase. /Marten

    Report
  6. Rlbeldon
    Archived post
    #6

    "DocVelo" <[email hidden]> wrote in :"]news:[email hidden]:

    Quoted message said:

    I just received pictures, from an european engineer, about a new rear hub concept.

    With this hub, it's possible to remove and/or replace the rear wheel , without touching gear
    shifters, because the freewheel body remains at it's place on the bike frame, while removing the
    wheel...

    Cinelli did this decades ago. It was possible to exchange front and rear wheels with their system.

    Quoted message said:

    I'd like to know your opinion about this new hub.

    I put pictures on this page : docvelo.membres.jexiste.orgnv moyeu.htm

    Does the thing deserve some interest ? Any potential ? Thanx for your comments, that will be sent
    to the designer.

    J. Ouellet

    Report
  7. A Muzi
    Archived post
    #7

    "DocVelo" <[email hidden]> wrote in message "]news:[email hidden]...

    Quoted message said:

    I just received pictures, from an european engineer, about a new rear hub concept.

    With this hub, it's possible to remove and/or replace the rear wheel , without touching gear
    shifters, because the freewheel body remains at it's place on the bike frame, while removing the
    wheel...

    I'd like to know your opinion about this new hub.

    Been done, the Cinelli Bivalent Hub system.
    --
    Andrew Muzi yellowjersey.orgyellowjersey.org Open every day since 1 April 1971

    Report
  8. Jeff Wills
    Archived post
    #8

    "A Muzi" <[email hidden]> wrote in message news:<[email hidden]>...

    Quoted message said:

    "DocVelo" <[email hidden]> wrote in message
    "]news:[email hidden]...

    Quoted message said:

    I just received pictures, from an european engineer, about a new rear hub concept.

    With this hub, it's possible to remove and/or replace the rear wheel , without touching gear
    shifters, because the freewheel body remains at it's place on the bike frame, while removing the
    wheel...

    I'd like to know your opinion about this new hub.

    Been done, the Cinelli Bivalent Hub system.

    Yep: classicrendezvous.comCinelli parts.htm (scroll to the bottom)
    classicrendezvous.comCinelli Bi Valent hubs.htm

    Jeff

    Report
  9. Qui Si Parla Ca
    Archived post
    #9

    DocVelo-<< I just received pictures, from an european engineer, about a new rear

    Quoted message said:

    hub concept.

    << I put pictures on this page :

    Quoted message said:

    docvelo.membres.jexiste.orgnv moyeu.htm

    very motorcycle-esque-answer to a not asked question tho...

    Peter Chisholm Vecchio's Bicicletteria 1833 Pearl St. Boulder, CO, 80302
    (303)440-3535 vecchios.comvecchios.com "Ruote convenzionali costruite eccezionalmente bene"

    Report
  10. Andy Coggan
    Archived post
    #10

    Cinelli proposed this, what, 40 years ago? It never caught on...

    Andy Coggan

    "DocVelo" <[email hidden]> wrote in message "]news:[email hidden]...

    Quoted message said:

    I just received pictures, from an european engineer, about a new rear hub concept.

    With this hub, it's possible to remove and/or replace the rear wheel , without touching gear
    shifters, because the freewheel body remains at it's place on the bike frame, while removing the
    wheel...

    I'd like to know your opinion about this new hub.

    I put pictures on this page : docvelo.membres.jexiste.orgnv moyeu.htm

    Does the thing deserve some interest ? Any potential ? Thanx for your comments, that will be sent
    to the designer.

    J. Ouellet

    Report
  11. Rman
    Archived post
    #11

    "Andy Coggan" <[email hidden]> wrote in message
    "]news:[email hidden]...

    Quoted message said:

    Cinelli proposed this, what, 40 years ago? It never caught on...


    [snip]

    Am I interpreting this design correct ? Could I change wheels, without having to change cassettes ?
    To me there would be some merit to that in that I would no longer have to be concerned about
    variable cassette ware between the wheelsets I have. Currently I have a cassette on one wheelset
    with about 8,000 km, another with about 5,000 and another new. I run the same chain on all of them,
    which seems ok at this time, but have read it can lead to problems

    RMan

    Report
  12. Jay Beattie
    Archived post
    #12

    "David L. Johnson >" <David L. Johnson <[email hidden]> wrote in message
    "]news:[email hidden]...

    Quoted message said:
    DocVelo said:

    I just received pictures, from an european engineer, about a new


    rear

    Quoted message said:
    Quoted message said:

    hub concept.

    With this hub, it's possible to remove and/or replace the rear wheel


    ,

    Quoted message said:
    Quoted message said:

    without touching gear shifters, because the freewheel body remains


    at

    Quoted message said:
    Quoted message said:

    it's place on the bike frame, while removing the wheel...

    I'd like to know your opinion about this new hub.

    I put pictures on this page : docvelo.membres.jexiste.orgnv moyeu.htm


    I don't see the problem that it addresses. A wheel can be removed ane replaced fairly quickly, if
    you know what you are doing. Heck, Rae


    Dawn

    Quoted message said:

    Chong managed to make a quick wheel change in American Flyers with


    only a

    Quoted message said:

    little training.

    Hey, Rae Dawn was an exception woman! She was tough with a heart of gold, and she cared for Kevin
    Costner when he was stricken with that fatal nose bleed thing. I was touched. That was perhaps the
    best cycling film of all times, second only to PeeWee's Big Adventure.

    Anyway, the Cinelli failed to catch on back in the old five-speed days when dish was not such an
    issue. I really wonder how this iteration would fare with 130mm 9 or 10 speed spacing. The right
    flange is even further toward the center of the hub due to the coupling mechanism. It seems to me
    that you would have to go with 140mm spacing to make the dish reasonable -- assuming that you could
    justify owning this oddity in the first place. -- Jay Beattie.

    Report

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